3549 lines
123 KiB
Diff
3549 lines
123 KiB
Diff
From 932023666da32002277b878a91ff322a79c1a6a8 Mon Sep 17 00:00:00 2001
|
||
From: Al Bailey <Al.Bailey@windriver.com>
|
||
Date: Wed, 28 Mar 2018 15:18:09 -0500
|
||
Subject: [PATCH] WRS: Patch9000: 0001-WRS-Rollup-optimization-commits.patch
|
||
|
||
---
|
||
.gitignore | 50 ++
|
||
.hgignore | 86 ++
|
||
Makefile.pre.in | 39 +-
|
||
Misc/NEWS | 2647 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
|
||
README | 29 +
|
||
configure | 334 ++++++-
|
||
configure.ac | 168 ++++
|
||
7 files changed, 3341 insertions(+), 12 deletions(-)
|
||
create mode 100644 .gitignore
|
||
create mode 100644 .hgignore
|
||
|
||
diff --git a/.gitignore b/.gitignore
|
||
new file mode 100644
|
||
index 0000000..2b87e93
|
||
--- /dev/null
|
||
+++ b/.gitignore
|
||
@@ -0,0 +1,50 @@
|
||
+*.cover
|
||
+*.o
|
||
+*.orig
|
||
+*.pyc
|
||
+*.pyd
|
||
+*.pyo
|
||
+*.rej
|
||
+*~
|
||
+*.gc??
|
||
+*.profclang?
|
||
+*.profraw
|
||
+Doc/build/
|
||
+Doc/tools/docutils/
|
||
+Doc/tools/jinja2/
|
||
+Doc/tools/pygments/
|
||
+Doc/tools/sphinx/
|
||
+Lib/lib2to3/*.pickle
|
||
+Makefile
|
||
+Makefile.pre
|
||
+Misc/python.pc
|
||
+Modules/Setup
|
||
+Modules/Setup.config
|
||
+Modules/Setup.local
|
||
+Modules/config.c
|
||
+Modules/ld_so_aix
|
||
+PCbuild/*.bsc
|
||
+PCbuild/*.dll
|
||
+PCbuild/*.exe
|
||
+PCbuild/*.exp
|
||
+PCbuild/*.lib
|
||
+PCbuild/*.ncb
|
||
+PCbuild/*.o
|
||
+PCbuild/*.pdb
|
||
+PCbuild/Win32-temp-*
|
||
+Parser/pgen
|
||
+Parser/pgen.stamp
|
||
+autom4te.cache
|
||
+build/
|
||
+config.log
|
||
+config.status
|
||
+libpython*.a
|
||
+libpython*.so*
|
||
+pyconfig.h
|
||
+python$
|
||
+python-gdb.py
|
||
+tags
|
||
+.coverage
|
||
+coverage/
|
||
+externals/
|
||
+htmlcov/
|
||
diff --git a/.hgignore b/.hgignore
|
||
new file mode 100644
|
||
index 0000000..007aa7b
|
||
--- /dev/null
|
||
+++ b/.hgignore
|
||
@@ -0,0 +1,86 @@
|
||
+.gdb_history
|
||
+.purify
|
||
+.svn/
|
||
+^.idea/
|
||
+.DS_Store
|
||
+Makefile$
|
||
+Makefile.pre$
|
||
+TAGS$
|
||
+autom4te.cache$
|
||
+build/
|
||
+buildno$
|
||
+config.cache
|
||
+config.log
|
||
+config.status
|
||
+config.status.lineno
|
||
+db_home
|
||
+platform$
|
||
+pyconfig.h$
|
||
+python$
|
||
+python.bat$
|
||
+python.exe$
|
||
+reflog.txt$
|
||
+tags$
|
||
+Lib/plat-mac/errors.rsrc.df.rsrc
|
||
+Misc/python.pc
|
||
+Modules/Setup$
|
||
+Modules/Setup.config
|
||
+Modules/Setup.local
|
||
+Modules/config.c
|
||
+Modules/ld_so_aix$
|
||
+Parser/pgen$
|
||
+Parser/pgen.stamp$
|
||
+^core
|
||
+^python-gdb.py
|
||
+^pybuilddir.txt
|
||
+
|
||
+syntax: glob
|
||
+python.exe-gdb.py
|
||
+libpython*.a
|
||
+libpython*.so*
|
||
+*.swp
|
||
+*.o
|
||
+*.pyc
|
||
+*.pyo
|
||
+*.pyd
|
||
+*.cover
|
||
+*~
|
||
+*.gc??
|
||
+*.profclang?
|
||
+*.profraw
|
||
+Lib/distutils/command/*.pdb
|
||
+Lib/lib2to3/*.pickle
|
||
+Lib/test/data/*
|
||
+Misc/*.wpu
|
||
+PC/python_nt*.h
|
||
+PC/pythonnt_rc*.h
|
||
+PC/*/*.exe
|
||
+PC/*/*.exp
|
||
+PC/*/*.lib
|
||
+PC/*/*.bsc
|
||
+PC/*/*.dll
|
||
+PC/*/*.pdb
|
||
+PC/*/*.user
|
||
+PC/*/*.ncb
|
||
+PC/*/*.suo
|
||
+PC/*/Win32-temp-*
|
||
+PC/*/x64-temp-*
|
||
+PC/*/amd64
|
||
+PCbuild/*.user
|
||
+PCbuild/*.suo
|
||
+PCbuild/*.*sdf
|
||
+PCbuild/*-pgi
|
||
+PCbuild/*-pgo
|
||
+PCbuild/.vs
|
||
+PCbuild/*.dll
|
||
+PCbuild/*.exp
|
||
+PCbuild/*.exe
|
||
+PCbuild/*.ilk
|
||
+PCbuild/*.lib
|
||
+PCbuild/*.pdb
|
||
+PCbuild/amd64
|
||
+PCbuild/obj
|
||
+.coverage
|
||
+coverage/
|
||
+externals/
|
||
+htmlcov/
|
||
diff --git a/Makefile.pre.in b/Makefile.pre.in
|
||
index 611f63a..21b6478 100644
|
||
--- a/Makefile.pre.in
|
||
+++ b/Makefile.pre.in
|
||
@@ -42,6 +42,11 @@ SVNVERSION= @SVNVERSION@
|
||
HGVERSION= @HGVERSION@
|
||
HGTAG= @HGTAG@
|
||
HGBRANCH= @HGBRANCH@
|
||
+PGO_PROF_GEN_FLAG=@PGO_PROF_GEN_FLAG@
|
||
+PGO_PROF_USE_FLAG=@PGO_PROF_USE_FLAG@
|
||
+LLVM_PROF_MERGER=@LLVM_PROF_MERGER@
|
||
+LLVM_PROF_FILE=@LLVM_PROF_FILE@
|
||
+LLVM_PROF_ERR=@LLVM_PROF_ERR@
|
||
|
||
GNULD= @GNULD@
|
||
|
||
@@ -203,8 +208,7 @@ _PYTHON_HOST_PLATFORM=@_PYTHON_HOST_PLATFORM@
|
||
HOST_GNU_TYPE= @host@
|
||
|
||
# The task to run while instrument when building the profile-opt target
|
||
-PROFILE_TASK= $(srcdir)/Tools/pybench/pybench.py -n 2 --with-gc --with-syscheck
|
||
-#PROFILE_TASK= $(srcdir)/Lib/test/regrtest.py
|
||
+PROFILE_TASK=-m test.regrtest >/dev/null 2>&1
|
||
|
||
# === Definitions added by makesetup ===
|
||
|
||
@@ -417,42 +421,53 @@ LIBRARY_OBJS= \
|
||
# Rules
|
||
|
||
# Default target
|
||
-all: build_all
|
||
+all: @DEF_MAKE_ALL_RULE@
|
||
build_all: $(BUILDPYTHON) oldsharedmods sharedmods gdbhooks
|
||
|
||
-# Compile a binary with gcc profile guided optimization.
|
||
+# Compile a binary with profile guided optimization.
|
||
profile-opt:
|
||
+ @if [ $(LLVM_PROF_ERR) == yes ]; then \
|
||
+ echo "Error: Cannot perform PGO build because llvm-profdata was not found in PATH" ;\
|
||
+ echo "Please add it to PATH and run ./configure again" ;\
|
||
+ exit 1;\
|
||
+ fi
|
||
@echo "Building with support for profile generation:"
|
||
$(MAKE) clean
|
||
+ $(MAKE) profile-removal
|
||
$(MAKE) build_all_generate_profile
|
||
- @echo "Running benchmark to generate profile data:"
|
||
$(MAKE) profile-removal
|
||
+ @echo "Running code to generate profile data (this can take a while):"
|
||
$(MAKE) run_profile_task
|
||
+ $(MAKE) build_all_merge_profile
|
||
@echo "Rebuilding with profile guided optimizations:"
|
||
$(MAKE) clean
|
||
$(MAKE) build_all_use_profile
|
||
+ $(MAKE) profile-removal
|
||
|
||
build_all_generate_profile:
|
||
- $(MAKE) all CFLAGS="$(CFLAGS) -fprofile-generate" LIBS="$(LIBS) -lgcov"
|
||
+ $(MAKE) @DEF_MAKE_RULE@ CFLAGS="$(CFLAGS) $(PGO_PROF_GEN_FLAG) @LTOFLAGS@" LDFLAGS="$(LDFLAGS) $(PGO_PROF_GEN_FLAG) @LTOFLAGS@" LIBS="$(LIBS)"
|
||
|
||
run_profile_task:
|
||
: # FIXME: can't run for a cross build
|
||
- ./$(BUILDPYTHON) $(PROFILE_TASK)
|
||
+ $(LLVM_PROF_FILE) ./$(BUILDPYTHON) $(PROFILE_TASK) || true
|
||
+
|
||
+build_all_merge_profile:
|
||
+ $(LLVM_PROF_MERGER)
|
||
|
||
build_all_use_profile:
|
||
- $(MAKE) all CFLAGS="$(CFLAGS) -fprofile-use"
|
||
+ $(MAKE) @DEF_MAKE_RULE@ CFLAGS="$(CFLAGS) $(PGO_PROF_USE_FLAG) @LTOFLAGS@" LDFLAGS="$(LDFLAGS) @LTOFLAGS@"
|
||
|
||
coverage:
|
||
@echo "Building with support for coverage checking:"
|
||
- $(MAKE) clean
|
||
- $(MAKE) all CFLAGS="$(CFLAGS) -O0 -pg -fprofile-arcs -ftest-coverage" LIBS="$(LIBS) -lgcov"
|
||
+ $(MAKE) clean profile-removal
|
||
+ $(MAKE) @DEF_MAKE_RULE@ CFLAGS="$(CFLAGS) -O0 -pg -fprofile-arcs -ftest-coverage" LIBS="$(LIBS) -lgcov"
|
||
|
||
|
||
# Build the interpreter
|
||
$(BUILDPYTHON): Modules/python.o $(LDLIBRARY)
|
||
$(LINKCC) $(CFLAGS) $(LDFLAGS) $(LINKFORSHARED) -o $@ \
|
||
Modules/python.o \
|
||
- $(BLDLIBRARY) $(LIBS) $(MODLIBS) $(SYSLIBS) $(LDLAST)
|
||
+ $(LIBRARY_OBJS) $(LIBS) $(MODLIBS) $(SYSLIBS) $(LDLAST)
|
||
|
||
platform: $(BUILDPYTHON) pybuilddir.txt
|
||
$(RUNSHARED) $(PYTHON_FOR_BUILD) -c 'import sys ; from sysconfig import get_platform ; print get_platform()+"-"+sys.version[0:3]' >platform
|
||
@@ -1282,9 +1297,11 @@ clean: pycremoval
|
||
find build -name 'fficonfig.h' -exec rm -f {} ';' || true
|
||
find build -name 'fficonfig.py' -exec rm -f {} ';' || true
|
||
-rm -f Lib/lib2to3/*Grammar*.pickle
|
||
+ -find build -type f -a ! -name '*.gc??' -exec rm -f {} ';'
|
||
|
||
profile-removal:
|
||
find . -name '*.gc??' -exec rm -f {} ';'
|
||
+ find . -name '*.profclang?' -exec rm -f {} ';'
|
||
|
||
clobber: clean profile-removal
|
||
-rm -f $(BUILDPYTHON) $(PGEN) $(LIBRARY) $(LDLIBRARY) $(DLLLIBRARY) \
|
||
diff --git a/Misc/NEWS b/Misc/NEWS
|
||
index 8f97390..8e581ab 100644
|
||
--- a/Misc/NEWS
|
||
+++ b/Misc/NEWS
|
||
@@ -1,6 +1,2653 @@
|
||
++++++++++++
|
||
Python News
|
||
+++++++++++
|
||
|
||
+What's New in Python 2.7.13?
|
||
+============================
|
||
+
|
||
+*Release date: XXXX-XX-XX*
|
||
+
|
||
+Core and Builtins
|
||
+-----------------
|
||
+
|
||
+- bpo-28598: Support __rmod__ for subclasses of str being called before
|
||
+ str.__mod__. Patch by Martijn Pieters.
|
||
+
|
||
+- bpo-29602: Fix incorrect handling of signed zeros in complex constructor for
|
||
+ complex subclasses and for inputs having a __complex__ method. Patch
|
||
+ by Serhiy Storchaka.
|
||
+
|
||
+- bpo-29347: Fixed possibly dereferencing undefined pointers
|
||
+ when creating weakref objects.
|
||
+
|
||
+- Issue #14376: Allow sys.exit to accept longs as well as ints. Patch
|
||
+ by Gareth Rees.
|
||
+
|
||
+- Issue #29028: Fixed possible use-after-free bugs in the subscription of the
|
||
+ buffer object with custom index object.
|
||
+
|
||
+- Issue #29145: Fix overflow checks in string, bytearray and unicode.
|
||
+ Patch by jan matejek and Xiang Zhang.
|
||
+
|
||
+- Issue #28932: Do not include <sys/random.h> if it does not exist.
|
||
+
|
||
+Extension Modules
|
||
+-----------------
|
||
+
|
||
+- Issue #29169: Update zlib to 1.2.11.
|
||
+
|
||
+Library
|
||
+-------
|
||
+
|
||
+- bpo-29861: Release references to tasks, their arguments and their results
|
||
+ as soon as they are finished in multiprocessing.Pool.
|
||
+
|
||
+- bpo-27880: Fixed integer overflow in cPickle when pickle large strings or
|
||
+ too many objects.
|
||
+
|
||
+- bpo-29110: Fix file object leak in aifc.open() when file is given as a
|
||
+ filesystem path and is not in valid AIFF format.
|
||
+ Original patch by Anthony Zhang.
|
||
+
|
||
+- Issue #29354: Fixed inspect.getargs() for parameters which are cell
|
||
+ variables.
|
||
+
|
||
+- Issue #29335: Fix subprocess.Popen.wait() when the child process has
|
||
+ exited to a stopped instead of terminated state (ex: when under ptrace).
|
||
+
|
||
+- Issue #29219: Fixed infinite recursion in the repr of uninitialized
|
||
+ ctypes.CDLL instances.
|
||
+
|
||
+- Issue #29082: Fixed loading libraries in ctypes by unicode names on Windows.
|
||
+ Original patch by Chi Hsuan Yen.
|
||
+
|
||
+- Issue #29188: Support glibc 2.24 on Linux: don't use getentropy() function
|
||
+ but read from /dev/urandom to get random bytes, for example in os.urandom().
|
||
+ On Linux, getentropy() is implemented which getrandom() is blocking mode,
|
||
+ whereas os.urandom() should not block.
|
||
+
|
||
+- Issue #29142: In urllib, suffixes in no_proxy environment variable with
|
||
+ leading dots could match related hostnames again (e.g. .b.c matches a.b.c).
|
||
+ Patch by Milan Oberkirch.
|
||
+
|
||
+- Issue #29094: Offsets in a ZIP file created with extern file object and mode
|
||
+ "w" now are relative to the start of the file.
|
||
+
|
||
+- Issue #13051: Fixed recursion errors in large or resized
|
||
+ curses.textpad.Textbox. Based on patch by Tycho Andersen.
|
||
+
|
||
+- Issue #9770: curses.ascii predicates now work correctly with negative
|
||
+ integers.
|
||
+
|
||
+- Issue #28427: old keys should not remove new values from
|
||
+ WeakValueDictionary when collecting from another thread.
|
||
+
|
||
+- Issue #28998: More APIs now support longs as well as ints.
|
||
+
|
||
+- Issue 28923: Remove editor artifacts from Tix.py,
|
||
+ including encoding not recognized by codecs.lookup.
|
||
+
|
||
+- Issue #29019: Fix dict.fromkeys(x) overallocates when x is sparce dict.
|
||
+ Original patch by Rasmus Villemoes.
|
||
+
|
||
+- Issue #19542: Fix bugs in WeakValueDictionary.setdefault() and
|
||
+ WeakValueDictionary.pop() when a GC collection happens in another
|
||
+ thread.
|
||
+
|
||
+- Issue #28925: cPickle now correctly propagates errors when unpickle instances
|
||
+ of old-style classes.
|
||
+
|
||
+C API
|
||
+-----
|
||
+
|
||
+- Issue #27867: Function PySlice_GetIndicesEx() is replaced with a macro.
|
||
+
|
||
+Documentation
|
||
+-------------
|
||
+
|
||
+- bpo-28929: Link the documentation to its source file on GitHub.
|
||
+
|
||
+- Issue #26355: Add canonical header link on each page to corresponding major
|
||
+ version of the documentation. Patch by Matthias Bussonnier.
|
||
+
|
||
+- Issue #12067: Rewrite Comparisons section in the Expressions chapter of the
|
||
+ language reference. Some of the details of comparing mixed types were
|
||
+ incorrect or ambiguous. Added default behaviour and consistency suggestions
|
||
+ for user-defined classes. Based on patch from Andy Maier.
|
||
+
|
||
+Build
|
||
+-----
|
||
+
|
||
+- bpo-29643: Fix ``--enable-optimization`` configure option didn't work.
|
||
+
|
||
+- bpo-29572: Update Windows build and OS X installers to use OpenSSL 1.0.2k.
|
||
+
|
||
+- Issue #28768: Fix implicit declaration of function _setmode. Patch by
|
||
+ Masayuki Yamamoto
|
||
+
|
||
+
|
||
+What's New in Python 2.7.13
|
||
+===========================
|
||
+
|
||
+*Release date: 2016-12-17*
|
||
+
|
||
+Core and Builtins
|
||
+-----------------
|
||
+
|
||
+- Revert a37cc3d926ec (Issue #5322).
|
||
+
|
||
+
|
||
+What's New in Python 2.7.13 release candidate 1?
|
||
+================================================
|
||
+
|
||
+*Release date: 2016-12-03*
|
||
+
|
||
+Core and Builtins
|
||
+-----------------
|
||
+
|
||
+- Issue #5322: Fixed setting __new__ to a PyCFunction inside Python code.
|
||
+ Original patch by Andreas Stührk.
|
||
+
|
||
+- Issue #28847: dumbdbm no longer writes the index file in when it is not
|
||
+ changed and supports reading read-only files.
|
||
+
|
||
+- Issue #11145: Fixed miscellaneous issues with C-style formatting of types
|
||
+ with custom __oct__ and __hex__.
|
||
+
|
||
+- Issue #24469: Fixed memory leak caused by int subclasses without overridden
|
||
+ tp_free (e.g. C-inherited Cython classes).
|
||
+
|
||
+- Issue #19398: Extra slash no longer added to sys.path components in case of
|
||
+ empty compile-time PYTHONPATH components.
|
||
+
|
||
+- Issue #21720: Improve exception message when the type of fromlist is unicode.
|
||
+ fromlist parameter of __import__() only accepts str in Python 2 and this
|
||
+ will help to identify the problem especially when the unicode_literals
|
||
+ future import is used.
|
||
+
|
||
+- Issue #26906: Resolving special methods of uninitialized type now causes
|
||
+ implicit initialization of the type instead of a fail.
|
||
+
|
||
+- Issue #18287: PyType_Ready() now checks that tp_name is not NULL.
|
||
+ Original patch by Niklas Koep.
|
||
+
|
||
+- Issue #24098: Fixed possible crash when AST is changed in process of
|
||
+ compiling it.
|
||
+
|
||
+- Issue #28350: String constants with null character no longer interned.
|
||
+
|
||
+- Issue #27942: String constants now interned recursively in tuples and frozensets.
|
||
+
|
||
+- Issue #15578: Correctly incref the parent module while importing.
|
||
+
|
||
+- Issue #26307: The profile-opt build now applys PGO to the built-in modules.
|
||
+
|
||
+- Issue #27870: A left shift of zero by a large integer no longer attempts
|
||
+ to allocate large amounts of memory.
|
||
+
|
||
+- Issue #25604: Fix a minor bug in integer true division; this bug could
|
||
+ potentially have caused off-by-one-ulp results on platforms with
|
||
+ unreliable ldexp implementations.
|
||
+
|
||
+- Issue #27473: Fixed possible integer overflow in str, unicode and bytearray
|
||
+ concatenations and repetitions. Based on patch by Xiang Zhang.
|
||
+
|
||
+- Issue #27507: Add integer overflow check in bytearray.extend(). Patch by
|
||
+ Xiang Zhang.
|
||
+
|
||
+- Issue #27581: Don't rely on wrapping for overflow check in
|
||
+ PySequence_Tuple(). Patch by Xiang Zhang.
|
||
+
|
||
+- Issue #23908: os functions, open() and the io.FileIO constructor now reject
|
||
+ unicode paths with embedded null character on Windows instead of silently
|
||
+ truncating them.
|
||
+
|
||
+- Issue #27514: Make having too many statically nested blocks a SyntaxError
|
||
+ instead of SystemError.
|
||
+
|
||
+Library
|
||
+-------
|
||
+
|
||
+- Issue #27570: Avoid zero-length memcpy() etc calls with null source
|
||
+ pointers in the "ctypes" and "array" modules.
|
||
+
|
||
+- lib2to3.pgen3.driver.load_grammar() now creates a stable cache file
|
||
+ between runs given the same Grammar.txt input regardless of the hash
|
||
+ randomization setting.
|
||
+
|
||
+- Issue #27691: Fix ssl module's parsing of GEN_RID subject alternative name
|
||
+ fields in X.509 certs.
|
||
+
|
||
+- Issue #27850: Remove 3DES from ssl module's default cipher list to counter
|
||
+ measure sweet32 attack (CVE-2016-2183).
|
||
+
|
||
+- Issue #27766: Add ChaCha20 Poly1305 to ssl module's default ciper list.
|
||
+ (Required OpenSSL 1.1.0 or LibreSSL).
|
||
+
|
||
+- Issue #26470: Port ssl and hashlib module to OpenSSL 1.1.0.
|
||
+
|
||
+- Issue #27944: Fix some memory-corruption bugs in the log reading code of the
|
||
+ _hotshot module.
|
||
+
|
||
+- Issue #27934: Use ``float.__repr__`` instead of plain ``repr`` when JSON-
|
||
+ encoding an instance of a float subclass. Thanks Eddie James.
|
||
+
|
||
+- Issue #27861: Fixed a crash in sqlite3.Connection.cursor() when a factory
|
||
+ creates not a cursor. Patch by Xiang Zhang.
|
||
+
|
||
+- Issue #19884: Avoid spurious output on OS X with Gnu Readline.
|
||
+
|
||
+- Issue #10513: Fix a regression in Connection.commit(). Statements should
|
||
+ not be reset after a commit.
|
||
+
|
||
+- Issue #2466: posixpath.ismount now correctly recognizes mount points which
|
||
+ the user does not have permission to access.
|
||
+
|
||
+- Issue #27783: Fix possible usage of uninitialized memory in operator.methodcaller.
|
||
+
|
||
+- Issue #27774: Fix possible Py_DECREF on unowned object in _sre.
|
||
+
|
||
+- Issue #27760: Fix possible integer overflow in binascii.b2a_qp.
|
||
+
|
||
+- In the curses module, raise an error if window.getstr() or window.instr() is
|
||
+ passed a negative value.
|
||
+
|
||
+- Issue #27758: Fix possible integer overflow in the _csv module for large record
|
||
+ lengths.
|
||
+
|
||
+- Issue #23369: Fixed possible integer overflow in
|
||
+ _json.encode_basestring_ascii.
|
||
+
|
||
+- Issue #27568: Prevent HTTPoxy attack (CVE-2016-1000110). Ignore the
|
||
+ HTTP_PROXY variable when REQUEST_METHOD environment is set, which indicates
|
||
+ that the script is in CGI mode.
|
||
+
|
||
+- Issue #27130: In the "zlib" module, fix handling of large buffers
|
||
+ (typically 2 or 4 GiB). Previously, inputs were limited to 2 GiB, and
|
||
+ compression and decompression operations did not properly handle results of
|
||
+ 2 or 4 GiB.
|
||
+
|
||
+- Issue #23804: Fix SSL zero-length recv() calls to not block and not raise
|
||
+ an error about unclean EOF.
|
||
+
|
||
+- Issue #27466: Change time format returned by http.cookie.time2netscape,
|
||
+ confirming the netscape cookie format and making it consistent with
|
||
+ documentation.
|
||
+
|
||
+- Issue #22115: Fixed tracing Tkinter variables: trace_vdelete() with wrong
|
||
+ mode no longer break tracing, trace_vinfo() now always returns a list of
|
||
+ pairs of strings.
|
||
+
|
||
+- Issue #27079: Fixed curses.ascii functions isblank(), iscntrl() and ispunct().
|
||
+
|
||
+- Issue #22636: Avoid shell injection problems with
|
||
+ ctypes.util.find_library().
|
||
+
|
||
+- Issue #27330: Fixed possible leaks in the ctypes module.
|
||
+
|
||
+- Issue #27238: Got rid of bare excepts in the turtle module. Original patch
|
||
+ by Jelle Zijlstra.
|
||
+
|
||
+- Issue #26386: Fixed ttk.TreeView selection operations with item id's
|
||
+ containing spaces.
|
||
+
|
||
+- Issue #25455: Fixed a crash in repr of cElementTree.Element with recursive tag.
|
||
+
|
||
+IDLE
|
||
+----
|
||
+
|
||
+- Issue #27714: text_textview and test_autocomplete now pass when re-run
|
||
+ in the same process. This occurs when test_idle fails when run with the
|
||
+ -w option but without -jn. Fix warning from test_config.
|
||
+
|
||
+- Issue #27452: add line counter and crc to IDLE configHandler test dump.
|
||
+
|
||
+- Issue #27365: Allow non-ascii chars in IDLE NEWS.txt, for contributor names.
|
||
+
|
||
+- Issue #27245: IDLE: Cleanly delete custom themes and key bindings.
|
||
+ Previously, when IDLE was started from a console or by import, a cascade
|
||
+ of warnings was emitted. Patch by Serhiy Storchaka.
|
||
+
|
||
+Documentation
|
||
+-------------
|
||
+
|
||
+- Issue #16484: Change the default PYTHONDOCS URL to "https:", and fix the
|
||
+ resulting links to use lowercase. Patch by Sean Rodman, test by Kaushik
|
||
+ Nadikuditi.
|
||
+
|
||
+Tests
|
||
+-----
|
||
+
|
||
+- Issue #27369: In test_pyexpat, avoid testing an error message detail that
|
||
+ changed in Expat 2.2.0.
|
||
+
|
||
+Build
|
||
+-----
|
||
+
|
||
+- Issue #26359: Rename --with-optimiations to --enable-optimizations.
|
||
+
|
||
+- Issue #28248: Update Windows build and OS X installers to use OpenSSL 1.0.2j.
|
||
+
|
||
+- Issue #28258: Fixed build with Estonian locale (distclean target in
|
||
+ Makefile). Patch by Arfrever Frehtes Taifersar Arahesis.
|
||
+
|
||
+- Issue #26661: setup.py now detects system libffi with multiarch wrapper.
|
||
+
|
||
+- Issue #15819: The Include directory in the build tree is already searched;
|
||
+ drop unused code trying to add it again.
|
||
+
|
||
+- Issue #27566: Fix clean target in freeze makefile (patch by Lisa Roach)
|
||
+
|
||
+- Issue #27983: Cause lack of llvm-profdata tool when using clang as
|
||
+ required for PGO linking to be a configure time error rather than
|
||
+ make time when --with-optimizations is enabled. Also improve our
|
||
+ ability to find the llvm-profdata tool on MacOS and some Linuxes.
|
||
+
|
||
+- Issue #26359: Add the --with-optimizations configure flag.
|
||
+
|
||
+- Issue #10910: Avoid C++ compilation errors on FreeBSD and OS X.
|
||
+ Also update FreedBSD version checks for the original ctype UTF-8 workaround.
|
||
+
|
||
+Windows
|
||
+-------
|
||
+
|
||
+- Issue #27888: Prevent Windows installer from displaying console windows and
|
||
+ failing when pip cannot be installed/uninstalled.
|
||
+
|
||
+What's New in Python 2.7.12?
|
||
+============================
|
||
+
|
||
+*Release date: XXXX-XX-XX*
|
||
+
|
||
+Core and Builtins
|
||
+-----------------
|
||
+
|
||
+- Issue #25702: A --with-lto configure option has been added that will
|
||
+ enable link time optimizations at build time during a make profile-opt.
|
||
+ Some compilers and toolchains are known to not produce stable code when
|
||
+ using LTO, be sure to test things thoroughly before relying on it.
|
||
+ It can provide a few % speed up over profile-opt alone.
|
||
+
|
||
+- Issue #26168: Fixed possible refleaks in failing Py_BuildValue() with the "N"
|
||
+ format unit.
|
||
+
|
||
+- Issue #27039: Fixed bytearray.remove() for values greater than 127. Patch by
|
||
+ Joe Jevnik.
|
||
+
|
||
+- Issue #4806: Avoid masking the original TypeError exception when using star
|
||
+ (*) unpacking and the exception was raised from a generator. Based on
|
||
+ patch by Hagen Fürstenau.
|
||
+
|
||
+- Issue #26659: Make the builtin slice type support cycle collection.
|
||
+
|
||
+- Issue #26718: super.__init__ no longer leaks memory if called multiple times.
|
||
+ NOTE: A direct call of super.__init__ is not endorsed!
|
||
+
|
||
+- Issue #13410: Fixed a bug in PyUnicode_Format where it failed to properly
|
||
+ ignore errors from a __int__() method.
|
||
+
|
||
+- Issue #26494: Fixed crash on iterating exhausting iterators.
|
||
+ Affected classes are generic sequence iterators, iterators of bytearray,
|
||
+ list, tuple, set, frozenset, dict, OrderedDict and corresponding views.
|
||
+
|
||
+- Issue #26581: If coding cookie is specified multiple times on a line in
|
||
+ Python source code file, only the first one is taken to account.
|
||
+
|
||
+- Issue #22836: Ensure exception reports from PyErr_Display() and
|
||
+ PyErr_WriteUnraisable() are sensible even when formatting them produces
|
||
+ secondary errors. This affects the reports produced by
|
||
+ sys.__excepthook__() and when __del__() raises an exception.
|
||
+
|
||
+- Issue #22847: Improve method cache efficiency.
|
||
+
|
||
+- Issue #25843: When compiling code, don't merge constants if they are equal
|
||
+ but have a different types. For example, ``f1, f2 = lambda: 1, lambda: 1.0``
|
||
+ is now correctly compiled to two different functions: ``f1()`` returns ``1``
|
||
+ (``int``) and ``f2()`` returns ``1.0`` (``int``), even if ``1`` and ``1.0``
|
||
+ are equal.
|
||
+
|
||
+- Issue #22995: [UPDATE] Remove the one of the pickleability tests in
|
||
+ _PyObject_GetState() due to regressions observed in Cython-based projects.
|
||
+
|
||
+- Issue #25961: Disallowed null characters in the type name.
|
||
+
|
||
+- Issue #22995: Instances of extension types with a state that aren't
|
||
+ subclasses of list or dict and haven't implemented any pickle-related
|
||
+ methods (__reduce__, __reduce_ex__, __getnewargs__, __getnewargs_ex__,
|
||
+ or __getstate__), can no longer be pickled. Including memoryview.
|
||
+
|
||
+- Issue #20440: Massive replacing unsafe attribute setting code with special
|
||
+ macro Py_SETREF.
|
||
+
|
||
+- Issue #25421: __sizeof__ methods of builtin types now use dynamic basic size.
|
||
+ This allows sys.getsize() to work correctly with their subclasses with
|
||
+ __slots__ defined.
|
||
+
|
||
+- Issue #19543: Added Py3k warning for decoding unicode.
|
||
+
|
||
+- Issue #24097: Fixed crash in object.__reduce__() if slot name is freed inside
|
||
+ __getattr__.
|
||
+
|
||
+- Issue #24731: Fixed crash on converting objects with special methods
|
||
+ __str__, __trunc__, and __float__ returning instances of subclasses of
|
||
+ str, long, and float to subclasses of str, long, and float correspondingly.
|
||
+
|
||
+- Issue #26478: Fix semantic bugs when using binary operators with dictionary
|
||
+ views and tuples.
|
||
+
|
||
+- Issue #26171: Fix possible integer overflow and heap corruption in
|
||
+ zipimporter.get_data().
|
||
+
|
||
+Library
|
||
+-------
|
||
+
|
||
+- Issue #27114: Fix SSLContext._load_windows_store_certs fails with
|
||
+ PermissionError
|
||
+
|
||
+- Issue #14132: Fix urllib.request redirect handling when the target only has
|
||
+ a query string. Fix by Ján Janech.
|
||
+
|
||
+- Removed the requirements for the ctypes and modulefinder modules to be
|
||
+ compatible with earlier Python versions.
|
||
+
|
||
+- Issue #22274: In the subprocess module, allow stderr to be redirected to
|
||
+ stdout even when stdout is not redirected. Patch by Akira Li.
|
||
+
|
||
+- Issue #12045: Avoid duplicate execution of command in ctypes.util._get_soname().
|
||
+ Patch by Sijin Joseph.
|
||
+
|
||
+- Issue #26960: Backported #16270 from Python 3 to Python 2, to prevent urllib
|
||
+ from hanging when retrieving certain FTP files.
|
||
+
|
||
+- Issue #25745: Fixed leaking a userptr in curses panel destructor.
|
||
+
|
||
+- Issue #17765: weakref.ref() no longer silently ignores keyword arguments.
|
||
+ Patch by Georg Brandl.
|
||
+
|
||
+- Issue #26873: xmlrpclib now raises ResponseError on unsupported type tags
|
||
+ instead of silently return incorrect result.
|
||
+
|
||
+- Issue #24114: Fix an uninitialized variable in `ctypes.util`.
|
||
+
|
||
+ The bug only occurs on SunOS when the ctypes implementation searches
|
||
+ for the `crle` program. Patch by Xiang Zhang. Tested on SunOS by
|
||
+ Kees Bos.
|
||
+
|
||
+- Issue #26864: In urllib, change the proxy bypass host checking against
|
||
+ no_proxy to be case-insensitive, and to not match unrelated host names that
|
||
+ happen to have a bypassed hostname as a suffix. Patch by Xiang Zhang.
|
||
+
|
||
+- Issue #26804: urllib will prefer lower_case proxy environment variables over
|
||
+ UPPER_CASE or Mixed_Case ones. Patch contributed by Hans-Peter Jansen.
|
||
+
|
||
+- Issue #26837: assertSequenceEqual() now correctly outputs non-stringified
|
||
+ differing items. This affects assertListEqual() and assertTupleEqual().
|
||
+
|
||
+- Issue #26822: itemgetter, attrgetter and methodcaller objects no longer
|
||
+ silently ignore keyword arguments.
|
||
+
|
||
+- Issue #26657: Fix directory traversal vulnerability with SimpleHTTPServer
|
||
+ on Windows. This fixes a regression that was introduced in 2.7.7. Based
|
||
+ on patch by Philipp Hagemeister.
|
||
+
|
||
+- Issue #19377: Add .svg to mimetypes.types_map.
|
||
+
|
||
+- Issue #13952: Add .csv to mimetypes.types_map. Patch by Geoff Wilson.
|
||
+
|
||
+- Issue #16329: Add .webm to mimetypes.types_map. Patch by Giampaolo Rodola'.
|
||
+
|
||
+- Issue #23735: Handle terminal resizing with Readline 6.3+ by installing our
|
||
+ own SIGWINCH handler. Patch by Eric Price.
|
||
+
|
||
+- Issue #26644: Raise ValueError rather than SystemError when a negative
|
||
+ length is passed to SSLSocket.recv() or read().
|
||
+
|
||
+- Issue #23804: Fix SSL recv(0) and read(0) methods to return zero bytes
|
||
+ instead of up to 1024.
|
||
+
|
||
+- Issue #24266: Ctrl+C during Readline history search now cancels the search
|
||
+ mode when compiled with Readline 7.
|
||
+
|
||
+- Issue #23857: Implement PEP 493, adding a Python-2-only ssl module API and
|
||
+ environment variable to configure the default handling of SSL/TLS certificates
|
||
+ for HTTPS connections.
|
||
+
|
||
+- Issue #26313: ssl.py _load_windows_store_certs fails if windows cert store
|
||
+ is empty. Patch by Baji.
|
||
+
|
||
+- Issue #26513: Fixes platform module detection of Windows Server
|
||
+
|
||
+- Issue #23718: Fixed parsing time in week 0 before Jan 1. Original patch by
|
||
+ Tamás Bence Gedai.
|
||
+
|
||
+- Issue #26177: Fixed the keys() method for Canvas and Scrollbar widgets.
|
||
+
|
||
+- Issue #15068: Got rid of excessive buffering in the fileinput module.
|
||
+ The bufsize parameter is no longer used.
|
||
+
|
||
+- Issue #2202: Fix UnboundLocalError in
|
||
+ AbstractDigestAuthHandler.get_algorithm_impls. Initial patch by Mathieu Dupuy.
|
||
+
|
||
+- Issue #26475: Fixed debugging output for regular expressions with the (?x)
|
||
+ flag.
|
||
+
|
||
+- Issue #26385: Remove the file if the internal fdopen() call in
|
||
+ NamedTemporaryFile() fails. Based on patch by Silent Ghost.
|
||
+
|
||
+- Issue #26309: In the "socketserver" module, shut down the request (closing
|
||
+ the connected socket) when verify_request() returns false. Based on patch
|
||
+ by Aviv Palivoda.
|
||
+
|
||
+- Issue #25939: On Windows open the cert store readonly in ssl.enum_certificates.
|
||
+
|
||
+- Issue #24303: Fix random EEXIST upon multiprocessing semaphores creation with
|
||
+ Linux PID namespaces enabled.
|
||
+
|
||
+- Issue #25698: Importing module if the stack is too deep no longer replaces
|
||
+ imported module with the empty one.
|
||
+
|
||
+- Issue #12923: Reset FancyURLopener's redirect counter even if there is an
|
||
+ exception. Based on patches by Brian Brazil and Daniel Rocco.
|
||
+
|
||
+- Issue #25945: Fixed a crash when unpickle the functools.partial object with
|
||
+ wrong state. Fixed a leak in failed functools.partial constructor.
|
||
+ "args" and "keywords" attributes of functools.partial have now always types
|
||
+ tuple and dict correspondingly.
|
||
+
|
||
+- Issue #19883: Fixed possible integer overflows in zipimport.
|
||
+
|
||
+- Issue #26147: xmlrpclib now works with unicode not encodable with used
|
||
+ non-UTF-8 encoding.
|
||
+
|
||
+- Issue #16620: Fixed AttributeError in msilib.Directory.glob().
|
||
+
|
||
+- Issue #21847: Fixed xmlrpclib on Unicode-disabled builds.
|
||
+
|
||
+- Issue #6500: Fixed infinite recursion in urllib2.Request.__getattr__().
|
||
+
|
||
+- Issue #26083: Workaround a subprocess bug that raises an incorrect
|
||
+ "ValueError: insecure string pickle" exception instead of the actual
|
||
+ exception on some platforms such as Mac OS X when an exception raised
|
||
+ in the forked child process prior to the exec() was large enough that
|
||
+ it overflowed the internal errpipe_read pipe buffer.
|
||
+
|
||
+- Issue #24103: Fixed possible use after free in ElementTree.iterparse().
|
||
+
|
||
+- Issue #20954: _args_from_interpreter_flags used by multiprocessing and some
|
||
+ tests no longer behaves incorrectly in the presence of the PYTHONHASHSEED
|
||
+ environment variable.
|
||
+
|
||
+- Issue #14285: When executing a package with the "python -m package" option,
|
||
+ and package initialization raises ImportError, a proper traceback is now
|
||
+ reported.
|
||
+
|
||
+- Issue #6478: _strptime's regexp cache now is reset after changing timezone
|
||
+ with time.tzset().
|
||
+
|
||
+- Issue #25718: Fixed copying object with state with boolean value is false.
|
||
+
|
||
+- Issue #25742: :func:`locale.setlocale` now accepts a Unicode string for
|
||
+ its second parameter.
|
||
+
|
||
+- Issue #10131: Fixed deep copying of minidom documents. Based on patch
|
||
+ by Marian Ganisin.
|
||
+
|
||
+- Issue #25725: Fixed a reference leak in cPickle.loads() when unpickling
|
||
+ invalid data including tuple instructions.
|
||
+
|
||
+- Issue #25663: In the Readline completer, avoid listing duplicate global
|
||
+ names, and search the global namespace before searching builtins.
|
||
+
|
||
+- Issue #25688: Fixed file leak in ElementTree.iterparse() raising an error.
|
||
+
|
||
+- Issue #23914: Fixed SystemError raised by CPickle unpickler on broken data.
|
||
+
|
||
+- Issue #25924: Avoid unnecessary serialization of getaddrinfo(3) calls on
|
||
+ OS X versions 10.5 or higher. Original patch by A. Jesse Jiryu Davis.
|
||
+
|
||
+- Issue #26406: Avoid unnecessary serialization of getaddrinfo(3) calls on
|
||
+ current versions of OpenBSD and NetBSD. Patch by A. Jesse Jiryu Davis.
|
||
+
|
||
+IDLE
|
||
+----
|
||
+
|
||
+- Issue #26673: When tk reports font size as 0, change to size 10.
|
||
+ Such fonts on Linux prevented the configuration dialog from opening.
|
||
+
|
||
+- Issue #27044: Add ConfigDialog.remove_var_callbacks to stop memory leaks.
|
||
+
|
||
+- In the 'IDLE-console differences' section of the IDLE doc, clarify
|
||
+ how running with IDLE affects sys.modules and the standard streams.
|
||
+
|
||
+- Issue #25507: fix incorrect change in IOBinding that prevented printing.
|
||
+ Change also prevented saving shell window with non-ascii characters.
|
||
+ Augment IOBinding htest to include all major IOBinding functions.
|
||
+
|
||
+- Issue #25905: Revert unwanted conversion of ' to ’ RIGHT SINGLE QUOTATION
|
||
+ MARK in README.txt and open this and NEWS.txt with 'ascii'.
|
||
+ Re-encode CREDITS.txt to utf-8 and open it with 'utf-8'.
|
||
+
|
||
+- Issue #26417: Prevent spurious errors and incorrect defaults when
|
||
+ installing IDLE 2.7 on OS X: default configuration settings are
|
||
+ no longer installed from OS X specific copies.
|
||
+
|
||
+Documentation
|
||
+-------------
|
||
+
|
||
+- Issue #26736: Used HTTPS for external links in the documentation if possible.
|
||
+
|
||
+- Issue #6953: Rework the Readline module documentation to group related
|
||
+ functions together, and add more details such as what underlying Readline
|
||
+ functions and variables are accessed.
|
||
+
|
||
+Tests
|
||
+-----
|
||
+
|
||
+- Issue #25940: Changed test_ssl to use self-signed.pythontest.net. This
|
||
+ avoids relying on svn.python.org, which recently changed root certificate.
|
||
+
|
||
+- Issue #25616: Tests for OrderedDict are extracted from test_collections
|
||
+ into separate file test_ordered_dict.
|
||
+
|
||
+Build
|
||
+-----
|
||
+
|
||
+- Issue #22359: Avoid incorrect recursive $(MAKE), and disable the rules for
|
||
+ running pgen when cross-compiling. The pgen output is normally saved with
|
||
+ the source code anyway, and is still regenerated when doing a native build.
|
||
+ Patch by Jonas Wagner and Xavier de Gaye.
|
||
+
|
||
+- Issue #19450: Update Windows builds to use SQLite 3.8.11.0.
|
||
+
|
||
+- Issue #17603: Avoid error about nonexistant fileblocks.o file by using a
|
||
+ lower-level check for st_blocks in struct stat.
|
||
+
|
||
+- Issue #26465: Update Windows builds to use OpenSSL 1.0.2g.
|
||
+
|
||
+- Issue #24421: Compile Modules/_math.c once, before building extensions.
|
||
+ Previously it could fail to compile properly if the math and cmath builds
|
||
+ were concurrent.
|
||
+
|
||
+- Issue #25824: Fixes sys.winver to not include any architecture suffix.
|
||
+
|
||
+- Issue #25348: Added ``--pgo`` and ``--pgo-job`` arguments to
|
||
+ ``PCbuild\build.bat`` for building with Profile-Guided Optimization. The
|
||
+ old ``PCbuild\build_pgo.bat`` script is now deprecated, and simply calls
|
||
+ ``PCbuild\build.bat --pgo %*``.
|
||
+
|
||
+- Issue #25827: Add support for building with ICC to ``configure``, including
|
||
+ a new ``--with-icc`` flag.
|
||
+
|
||
+- Issue #25696: Fix installation of Python on UNIX with make -j9.
|
||
+
|
||
+- Issue #26465: Update OS X 10.5+ 32-bit-only installer to build
|
||
+ and link with OpenSSL 1.0.2g.
|
||
+
|
||
+- Issue #26268: Update Windows builds to use OpenSSL 1.0.2f.
|
||
+
|
||
+- Issue #25136: Support Apple Xcode 7's new textual SDK stub libraries.
|
||
+
|
||
+Tools/Demos
|
||
+-----------
|
||
+
|
||
+- Issue #26799: Fix python-gdb.py: don't get C types once when the Python code
|
||
+ is loaded, but get C types on demand. The C types can change if
|
||
+ python-gdb.py is loaded before the Python executable. Patch written by Thomas
|
||
+ Ilsche.
|
||
+
|
||
+C API
|
||
+-----
|
||
+
|
||
+- Issue #26476: Fixed compilation error when use PyErr_BadInternalCall() in C++.
|
||
+ Patch by Jeroen Demeyer.
|
||
+
|
||
+
|
||
+What's New in Python 2.7.11?
|
||
+============================
|
||
+
|
||
+*Release date: XXXX-XX-XX*
|
||
+
|
||
+Core and Builtins
|
||
+-----------------
|
||
+
|
||
+- Issue #21167: NAN operations are now handled correctly when python is
|
||
+ compiled with ICC even if -fp-model strict is not specified.
|
||
+
|
||
+- Issue #24467: Fixed possible buffer over-read in bytearray. The bytearray
|
||
+ object now always allocates place for trailing null byte and it's buffer now
|
||
+ is always null-terminated.
|
||
+
|
||
+- Issue #19543: encode() and decode() methods and constructors of str,
|
||
+ unicode and bytearray classes now emit deprecation warning for known
|
||
+ non-text encodings when Python is ran with the -3 option.
|
||
+
|
||
+- Issue #24115: Update uses of PyObject_IsTrue(), PyObject_Not(),
|
||
+ PyObject_IsInstance(), PyObject_RichCompareBool() and _PyDict_Contains()
|
||
+ to check for and handle errors correctly.
|
||
+
|
||
+- Issue #4753: On compilers where it is supported, use "computed gotos" for
|
||
+ bytecode dispatch in the interpreter. This improves interpretation
|
||
+ performance.
|
||
+
|
||
+- Issue #22939: Fixed integer overflow in iterator object. Original patch by
|
||
+ Clement Rouault.
|
||
+
|
||
+- Issue #24102: Fixed exception type checking in standard error handlers.
|
||
+
|
||
+Library
|
||
+-------
|
||
+
|
||
+- Issue #24684: socket.socket.getaddrinfo() now calls
|
||
+ PyUnicode_AsEncodedString() instead of calling the encode() method of the
|
||
+ host, to handle correctly custom unicode string with an encode() method
|
||
+ which doesn't return a byte string. The encoder of the IDNA codec is now
|
||
+ called directly instead of calling the encode() method of the string.
|
||
+
|
||
+- Issue #24982: shutil.make_archive() with the "zip" format now adds entries
|
||
+ for directories (including empty directories) in ZIP file.
|
||
+
|
||
+- Issue #17849: Raise a sensible exception if an invalid response is
|
||
+ received for a HTTP tunnel request, as seen with some servers that
|
||
+ do not support tunnelling. Initial patch from Cory Benfield.
|
||
+
|
||
+- Issue #16180: Exit pdb if file has syntax error, instead of trapping user
|
||
+ in an infinite loop. Patch by Xavier de Gaye.
|
||
+
|
||
+- Issue #22812: Fix unittest discovery examples.
|
||
+ Patch from Pam McA'Nulty.
|
||
+
|
||
+- Issue #24634: Importing uuid should not try to load libc on Windows
|
||
+
|
||
+- Issue #23652: Make it possible to compile the select module against the
|
||
+ libc headers from the Linux Standard Base, which do not include some
|
||
+ EPOLL macros. Initial patch by Matt Frank.
|
||
+
|
||
+- Issue #15138: Speed up base64.urlsafe_b64{en,de}code considerably.
|
||
+
|
||
+- Issue #23319: Fix ctypes.BigEndianStructure, swap correctly bytes. Patch
|
||
+ written by Matthieu Gautier.
|
||
+
|
||
+- Issue #23254: Document how to close the TCPServer listening socket.
|
||
+ Patch from Martin Panter.
|
||
+
|
||
+- Issue #17527: Add PATCH to wsgiref.validator. Patch from Luca Sbardella.
|
||
+
|
||
+- Issue #24613: Calling array.fromstring() with self is no longer allowed
|
||
+ to prevent the use-after-free error. Patch by John Leitch.
|
||
+
|
||
+- Issue #24708: Fix possible integer overflow in strop.replace().
|
||
+
|
||
+- Issue #24620: Random.setstate() now validates the value of state last element.
|
||
+
|
||
+- Issue #13938: 2to3 converts StringTypes to a tuple. Patch from Mark Hammond.
|
||
+
|
||
+- Issue #24611: Fixed compiling the posix module on non-Windows platforms
|
||
+ without mknod() or makedev() (e.g. on Unixware).
|
||
+
|
||
+- Issue #18684: Fixed reading out of the buffer in the re module.
|
||
+
|
||
+- Issue #24259: tarfile now raises a ReadError if an archive is truncated
|
||
+ inside a data segment.
|
||
+
|
||
+- Issue #24514: tarfile now tolerates number fields consisting of only
|
||
+ whitespace.
|
||
+
|
||
+- Issue #20387: Restore semantic round-trip correctness in tokenize/untokenize
|
||
+ for tab-indented blocks.
|
||
+
|
||
+- Issue #24456: Fixed possible buffer over-read in adpcm2lin() and lin2adpcm()
|
||
+ functions of the audioop module. Fixed SystemError when the state is not a
|
||
+ tuple. Fixed possible memory leak.
|
||
+
|
||
+- Issue #24481: Fix possible memory corruption with large profiler info strings
|
||
+ in hotshot.
|
||
+
|
||
+- Issue #24489: ensure a previously set C errno doesn't disturb cmath.polar().
|
||
+
|
||
+- Issue #19543: io.TextIOWrapper (and hence io.open()) now uses the internal
|
||
+ codec marking system added to emit deprecation warning for known non-text
|
||
+ encodings at stream construction time when Python is ran with the -3 option.
|
||
+
|
||
+- Issue #24264: Fixed buffer overflow in the imageop module.
|
||
+
|
||
+- Issue #5633: Fixed timeit when the statement is a string and the setup is not.
|
||
+
|
||
+- Issue #24326: Fixed audioop.ratecv() with non-default weightB argument.
|
||
+ Original patch by David Moore.
|
||
+
|
||
+- Issue #22095: Fixed HTTPConnection.set_tunnel with default port. The port
|
||
+ value in the host header was set to "None". Patch by Demian Brecht.
|
||
+
|
||
+- Issue #24257: Fixed segmentation fault in sqlite3.Row constructor with faked
|
||
+ cursor type.
|
||
+
|
||
+- Issue #24286: Dict view were not registered with the MappingView abstract
|
||
+ base classes. This caused key and item views in OrderedDict to not be equal
|
||
+ to their regular dict counterparts.
|
||
+
|
||
+- Issue #22107: tempfile.gettempdir() and tempfile.mkdtemp() now try again
|
||
+ when a directory with the chosen name already exists on Windows as well as
|
||
+ on Unix. tempfile.mkstemp() now fails early if parent directory is not
|
||
+ valid (not exists or is a file) on Windows.
|
||
+
|
||
+- Issue #6598: Increased time precision and random number range in
|
||
+ email.utils.make_msgid() to strengthen the uniqueness of the message ID.
|
||
+
|
||
+- Issue #24091: Fixed various crashes in corner cases in cElementTree.
|
||
+
|
||
+- Issue #15267: HTTPConnection.request() now is compatibile with old-style
|
||
+ classes (such as TemporaryFile). Original patch by Atsuo Ishimoto.
|
||
+
|
||
+- Issue #20014: array.array() now accepts unicode typecodes. Based on patch by
|
||
+ Vajrasky Kok.
|
||
+
|
||
+- Issue #23637: Showing a warning no longer fails with UnicodeErrror.
|
||
+ Formatting unicode warning in the file with the path containing non-ascii
|
||
+ characters no longer fails with UnicodeErrror.
|
||
+
|
||
+- Issue #24134: Reverted issue #24134 changes.
|
||
+
|
||
+Build
|
||
+-----
|
||
+
|
||
+- Issue #24915: When doing a PGO build, the test suite is now used instead of
|
||
+ pybench; Clang support was also added as part off this work.
|
||
+
|
||
+- Issue #24986: It is now possible to build Python on Windows without errors
|
||
+ when external libraries are not available.
|
||
+
|
||
+- Issue #24508: Backported the MSBuild project files from Python 3.5. The
|
||
+ backported files replace the old project files in PCbuild; the old files moved
|
||
+ to PC/VS9.0 and remain supported.
|
||
+
|
||
+- Issue #24603: Update Windows builds and OS X 10.5 installer to use OpenSSL
|
||
+ 1.0.2d.
|
||
+
|
||
+IDLE
|
||
+----
|
||
+
|
||
+- Issue #23672: Allow Idle to edit and run files with astral chars in name.
|
||
+ Patch by Mohd Sanad Zaki Rizvi.
|
||
+
|
||
+- Issue 24745: Idle editor default font. Switch from Courier to
|
||
+ platform-sensitive TkFixedFont. This should not affect current customized
|
||
+ font selections. If there is a problem, edit $HOME/.idlerc/config-main.cfg
|
||
+ and remove 'fontxxx' entries from [Editor Window]. Patch by Mark Roseman.
|
||
+
|
||
+- Issue #21192: Idle editor. When a file is run, put its name in the restart bar.
|
||
+ Do not print false prompts. Original patch by Adnan Umer.
|
||
+
|
||
+- Issue #13884: Idle menus. Remove tearoff lines. Patch by Roger Serwy.
|
||
+
|
||
+- Issue #15809: IDLE shell now uses locale encoding instead of Latin1 for
|
||
+ decoding unicode literals.
|
||
+
|
||
+Documentation
|
||
+-------------
|
||
+
|
||
+- Issue #24952: Clarify the default size argument of stack_size() in
|
||
+ the "threading" and "thread" modules. Patch from Mattip.
|
||
+
|
||
+- Issue #20769: Improve reload() docs. Patch by Dorian Pula.
|
||
+
|
||
+- Issue #23589: Remove duplicate sentence from the FAQ. Patch by Yongzhi Pan.
|
||
+
|
||
+- Issue #22155: Add File Handlers subsection with createfilehandler to Tkinter
|
||
+ doc. Remove obsolete example from FAQ. Patch by Martin Panter.
|
||
+
|
||
+Tests
|
||
+-----
|
||
+
|
||
+- Issue #24751: When running regrtest with the ``-w`` command line option,
|
||
+ a test run is no longer marked as a failure if all tests succeed when
|
||
+ re-run.
|
||
+
|
||
+- PCbuild\rt.bat now accepts an unlimited number of arguments to pass along
|
||
+ to regrtest.py. Previously there was a limit of 9.
|
||
+
|
||
+Windows
|
||
+-------
|
||
+
|
||
+- Issue #25022: Removed very outdated PC/example_nt/ directory.
|
||
+
|
||
+
|
||
+What's New in Python 2.7.10?
|
||
+============================
|
||
+
|
||
+*Release date: 2015-05-23*
|
||
+
|
||
+Library
|
||
+-------
|
||
+
|
||
+- Issue #22931: Allow '[' and ']' in cookie values.
|
||
+
|
||
+
|
||
+What's New in Python 2.7.10 release candidate 1?
|
||
+================================================
|
||
+
|
||
+*Release date: 2015-05-10*
|
||
+
|
||
+Core and Builtins
|
||
+-----------------
|
||
+
|
||
+- Issue #23971: Fix underestimated presizing in dict.fromkeys().
|
||
+
|
||
+- Issue #23757: PySequence_Tuple() incorrectly called the concrete list API
|
||
+ when the data was a list subclass.
|
||
+
|
||
+- Issue #23629: Fix the default __sizeof__ implementation for variable-sized
|
||
+ objects.
|
||
+
|
||
+- Issue #23055: Fixed a buffer overflow in PyUnicode_FromFormatV. Analysis
|
||
+ and fix by Guido Vranken.
|
||
+
|
||
+- Issue #23048: Fix jumping out of an infinite while loop in the pdb.
|
||
+
|
||
+Library
|
||
+-------
|
||
+
|
||
+- The keywords attribute of functools.partial is now always a dictionary.
|
||
+
|
||
+- Issue #20274: When calling a _sqlite.Connection, it now complains if passed
|
||
+ any keyword arguments. Previously it silently ignored them.
|
||
+
|
||
+- Issue #20274: Remove ignored and erroneous "kwargs" parameters from three
|
||
+ METH_VARARGS methods on _sqlite.Connection.
|
||
+
|
||
+- Issue #24134: assertRaises() and assertRaisesRegexp() checks are not longer
|
||
+ successful if the callable is None.
|
||
+
|
||
+- Issue #23008: Fixed resolving attributes with boolean value is False in pydoc.
|
||
+
|
||
+- Issues #24099, #24100, and #24101: Fix use-after-free bug in heapq's siftup
|
||
+ and siftdown functions.
|
||
+
|
||
+- Backport collections.deque fixes from Python 3.5. Prevents reentrant badness
|
||
+ during deletion by deferring the decref until the container has been restored
|
||
+ to a consistent state.
|
||
+
|
||
+- Issue #23842: os.major(), os.minor() and os.makedev() now support ints again.
|
||
+
|
||
+- Issue #23811: Add missing newline to the PyCompileError error message.
|
||
+ Patch by Alex Shkop.
|
||
+
|
||
+- Issue #17898: Fix exception in gettext.py when parsing certain plural forms.
|
||
+
|
||
+- Issue #23865: close() methods in multiple modules now are idempotent and more
|
||
+ robust at shutdown. If they need to release multiple resources, all are
|
||
+ released even if errors occur.
|
||
+
|
||
+- Issue #23881: urllib.ftpwrapper constructor now closes the socket if the FTP
|
||
+ connection failed.
|
||
+
|
||
+- Issue #15133: _tkinter.tkapp.getboolean() now supports long and Tcl_Obj and
|
||
+ always returns bool. tkinter.BooleanVar now validates input values (accepted
|
||
+ bool, int, long, str, unicode, and Tcl_Obj). tkinter.BooleanVar.get() now
|
||
+ always returns bool.
|
||
+
|
||
+- Issue #23338: Fixed formatting ctypes error messages on Cygwin.
|
||
+ Patch by Makoto Kato.
|
||
+
|
||
+- Issue #16840: Tkinter now supports 64-bit integers added in Tcl 8.4 and
|
||
+ arbitrary precision integers added in Tcl 8.5.
|
||
+
|
||
+- Issue #23834: Fix socket.sendto(), use the C long type to store the result of
|
||
+ sendto() instead of the C int type.
|
||
+
|
||
+- Issue #21526: Tkinter now supports new boolean type in Tcl 8.5.
|
||
+
|
||
+- Issue #23838: linecache now clears the cache and returns an empty result on
|
||
+ MemoryError.
|
||
+
|
||
+- Issue #23742: ntpath.expandvars() no longer loses unbalanced single quotes.
|
||
+
|
||
+- Issue #21802: The reader in BufferedRWPair now is closed even when closing
|
||
+ writer failed in BufferedRWPair.close().
|
||
+
|
||
+- Issue #23671: string.Template now allows to specify the "self" parameter as
|
||
+ keyword argument. string.Formatter now allows to specify the "self" and
|
||
+ the "format_string" parameters as keyword arguments.
|
||
+
|
||
+- Issue #21560: An attempt to write a data of wrong type no longer cause
|
||
+ GzipFile corruption. Original patch by Wolfgang Maier.
|
||
+
|
||
+- Issue #23647: Increase impalib's MAXLINE to accommodate modern mailbox sizes.
|
||
+
|
||
+- Issue #23539: If body is None, http.client.HTTPConnection.request now sets
|
||
+ Content-Length to 0 for PUT, POST, and PATCH headers to avoid 411 errors from
|
||
+ some web servers.
|
||
+
|
||
+- Issue #23136: _strptime now uniformly handles all days in week 0, including
|
||
+ Dec 30 of previous year. Based on patch by Jim Carroll.
|
||
+
|
||
+- Issue #23138: Fixed parsing cookies with absent keys or values in cookiejar.
|
||
+ Patch by Demian Brecht.
|
||
+
|
||
+- Issue #23051: multiprocessing.Pool methods imap() and imap_unordered() now
|
||
+ handle exceptions raised by an iterator. Patch by Alon Diamant and Davin
|
||
+ Potts.
|
||
+
|
||
+- Issue #22928: Disabled HTTP header injections in httplib.
|
||
+ Original patch by Demian Brecht.
|
||
+
|
||
+- Issue #23615: Module tarfile is now can be reloaded with imp.reload().
|
||
+
|
||
+- Issue #22853: Fixed a deadlock when use multiprocessing.Queue at import time.
|
||
+ Patch by Florian Finkernagel and Davin Potts.
|
||
+
|
||
+- Issue #23476: In the ssl module, enable OpenSSL's X509_V_FLAG_TRUSTED_FIRST
|
||
+ flag on certificate stores when it is available.
|
||
+
|
||
+- Issue #23576: Avoid stalling in SSL reads when EOF has been reached in the
|
||
+ SSL layer but the underlying connection hasn't been closed.
|
||
+
|
||
+- Issue #23504: Added an __all__ to the types module.
|
||
+
|
||
+- Issue #23458: On POSIX, the file descriptor kept open by os.urandom() is now
|
||
+ set to non inheritable
|
||
+
|
||
+- Issue #22113: struct.pack_into() now supports new buffer protocol (in
|
||
+ particular accepts writable memoryview).
|
||
+
|
||
+- Issues #814253, #9179: Warnings now are raised when group references and
|
||
+ conditional group references are used in lookbehind assertions in regular
|
||
+ expressions.
|
||
+
|
||
+- Issue #23215: Multibyte codecs with custom error handlers that ignores errors
|
||
+ consumed too much memory and raised SystemError or MemoryError.
|
||
+ Original patch by Aleksi Torhamo.
|
||
+
|
||
+- Issue #5700: io.FileIO() called flush() after closing the file.
|
||
+ flush() was not called in close() if closefd=False.
|
||
+
|
||
+- Issue #21548: Fix pydoc.synopsis() and pydoc.apropos() on modules with empty
|
||
+ docstrings. Initial patch by Yuyang Guo.
|
||
+
|
||
+- Issue #22885: Fixed arbitrary code execution vulnerability in the dumbdbm
|
||
+ module. Original patch by Claudiu Popa.
|
||
+
|
||
+- Issue #23481: Remove RC4 from the SSL module's default cipher list.
|
||
+
|
||
+- Issue #21849: Fixed xmlrpclib serialization of non-ASCII unicode strings in
|
||
+ the multiprocessing module.
|
||
+
|
||
+- Issue #21840: Fixed expanding unicode variables of form $var in
|
||
+ posixpath.expandvars(). Fixed all os.path implementations on
|
||
+ unicode-disabled builds.
|
||
+
|
||
+- Issue #23367: Fix possible overflows in the unicodedata module.
|
||
+
|
||
+- Issue #23363: Fix possible overflow in itertools.permutations.
|
||
+
|
||
+- Issue #23364: Fix possible overflow in itertools.product.
|
||
+
|
||
+- Issue #23365: Fixed possible integer overflow in
|
||
+ itertools.combinations_with_replacement.
|
||
+
|
||
+- Issue #23366: Fixed possible integer overflow in itertools.combinations.
|
||
+
|
||
+- Issue #23191: fnmatch functions that use caching are now threadsafe.
|
||
+
|
||
+- Issue #18518: timeit now rejects statements which can't be compiled outside
|
||
+ a function or a loop (e.g. "return" or "break").
|
||
+
|
||
+- Issue #19996: Make :mod:`httplib` ignore headers with no name rather than
|
||
+ assuming the body has started.
|
||
+
|
||
+- Issue #20188: Support Application-Layer Protocol Negotiation (ALPN) in the ssl
|
||
+ module.
|
||
+
|
||
+- Issue #23248: Update ssl error codes from latest OpenSSL git master.
|
||
+
|
||
+- Issue #23098: 64-bit dev_t is now supported in the os module.
|
||
+
|
||
+- Issue #23063: In the disutils' check command, fix parsing of reST with code or
|
||
+ code-block directives.
|
||
+
|
||
+- Issue #21356: Make ssl.RAND_egd() optional to support LibreSSL. The
|
||
+ availability of the function is checked during the compilation. Patch written
|
||
+ by Bernard Spil.
|
||
+
|
||
+- Backport the context argument to ftplib.FTP_TLS.
|
||
+
|
||
+- Issue #23111: Maximize compatibility in protocol versions of ftplib.FTP_TLS.
|
||
+
|
||
+- Issue #23112: Fix SimpleHTTPServer to correctly carry the query string and
|
||
+ fragment when it redirects to add a trailing slash.
|
||
+
|
||
+- Issue #22585: On OpenBSD 5.6 and newer, os.urandom() now calls getentropy(),
|
||
+ instead of reading /dev/urandom, to get pseudo-random bytes.
|
||
+
|
||
+- Issue #23093: In the io, module allow more operations to work on detached
|
||
+ streams.
|
||
+
|
||
+- Issue #23071: Added missing names to codecs.__all__. Patch by Martin Panter.
|
||
+
|
||
+- Issue #23016: A warning no longer produces an AttributeError when sys.stderr
|
||
+ is None.
|
||
+
|
||
+- Issue #21032. Fixed socket leak if HTTPConnection.getresponse() fails.
|
||
+ Original patch by Martin Panter.
|
||
+
|
||
+- Issue #22609: Constructors and update methods of mapping classes in the
|
||
+ collections module now accept the self keyword argument.
|
||
+
|
||
+Documentation
|
||
+-------------
|
||
+
|
||
+- Issue #23006: Improve the documentation and indexing of dict.__missing__.
|
||
+ Add an entry in the language datamodel special methods section.
|
||
+ Revise and index its discussion in the stdtypes mapping/dict section.
|
||
+ Backport the code example from 3.4.
|
||
+
|
||
+- Issue #21514: The documentation of the json module now refers to new JSON RFC
|
||
+ 7159 instead of obsoleted RFC 4627.
|
||
+
|
||
+Tools/Demos
|
||
+-----------
|
||
+
|
||
+- Issue #23330: h2py now supports arbitrary filenames in #include.
|
||
+
|
||
+- Issue #6639: Module-level turtle functions no longer raise TclError after
|
||
+ closing the window.
|
||
+
|
||
+- Issue #22314: pydoc now works when the LINES environment variable is set.
|
||
+
|
||
+- Issue #18905: "pydoc -p 0" now outputs actually used port. Based on patch by
|
||
+ Wieland Hoffmann.
|
||
+
|
||
+- Issue #23345: Prevent test_ssl failures with large OpenSSL patch level
|
||
+ values (like 0.9.8zc).
|
||
+
|
||
+Tests
|
||
+-----
|
||
+
|
||
+- Issue #23799: Added test.test_support.start_threads() for running and
|
||
+ cleaning up multiple threads.
|
||
+
|
||
+- Issue #22390: test.regrtest now emits a warning if temporary files or
|
||
+ directories are left after running a test.
|
||
+
|
||
+- Issue #23583: Added tests for standard IO streams in IDLE.
|
||
+
|
||
+- Issue #23392: Added tests for marshal C API that works with FILE*.
|
||
+
|
||
+- Issue #18982: Add tests for CLI of the calendar module.
|
||
+
|
||
+- Issue #19949: The test_xpickle test now tests compatibility with installed
|
||
+ Python 2.7 and reports skipped tests. Based on patch by Zachary Ware.
|
||
+
|
||
+- Issue #11578: Backported test for the timeit module.
|
||
+
|
||
+- Issue #22943: bsddb tests are locale independend now.
|
||
+
|
||
+IDLE
|
||
+----
|
||
+
|
||
+- Issue #23583: Fixed writing unicode to standard output stream in IDLE.
|
||
+
|
||
+- Issue #20577: Configuration of the max line length for the FormatParagraph
|
||
+ extension has been moved from the General tab of the Idle preferences dialog
|
||
+ to the FormatParagraph tab of the Config Extensions dialog.
|
||
+ Patch by Tal Einat.
|
||
+
|
||
+- Issue #16893: Update Idle doc chapter to match current Idle and add new
|
||
+ information.
|
||
+
|
||
+- Issue #23180: Rename IDLE "Windows" menu item to "Window".
|
||
+ Patch by Al Sweigart.
|
||
+
|
||
+Build
|
||
+-----
|
||
+
|
||
+- Issue #15506: Use standard PKG_PROG_PKG_CONFIG autoconf macro in the configure
|
||
+ script.
|
||
+
|
||
+- Issue #23032: Fix installer build failures on OS X 10.4 Tiger
|
||
+ by disabling assembly code in the OpenSSL build.
|
||
+
|
||
+- Issue #23686: Update OS X 10.5 installer and Windows builds to use
|
||
+ OpenSSL 1.0.2a.
|
||
+
|
||
+C API
|
||
+-----
|
||
+
|
||
+- Issue #23998: PyImport_ReInitLock() now checks for lock allocation error
|
||
+
|
||
+- Issue #22079: PyType_Ready() now checks that statically allocated type has
|
||
+ no dynamically allocated bases.
|
||
+
|
||
+
|
||
+What's New in Python 2.7.9?
|
||
+===========================
|
||
+
|
||
+*Release date: 2014-12-10*
|
||
+
|
||
+Library
|
||
+-------
|
||
+
|
||
+- Issue #22959: Remove the *check_hostname* parameter of
|
||
+ httplib.HTTPSConnection. The *context* parameter should be used instead.
|
||
+
|
||
+- Issue #16043: Add a default limit for the amount of data xmlrpclib.gzip_decode
|
||
+ will return. This resolves CVE-2013-1753.
|
||
+
|
||
+- Issue #16042: CVE-2013-1752: smtplib: Limit amount of data read by limiting
|
||
+ the call to readline(). Original patch by Christian Heimes.
|
||
+
|
||
+- Issue #16041: In poplib, limit maximum line length read from the server to
|
||
+ prevent CVE-2013-1752.
|
||
+
|
||
+- Issue #22960: Add a context argument to xmlrpclib.ServerProxy.
|
||
+
|
||
+Build
|
||
+-----
|
||
+
|
||
+- Issue #22935: Allow the ssl module to be compiled if openssl doesn't support
|
||
+ SSL 3.
|
||
+
|
||
+- Issue #17128: Use private version of OpenSSL for 2.7.9 OS X 10.5+ installer.
|
||
+
|
||
+
|
||
+What's New in Python 2.7.9 release candidate 1?
|
||
+===============================================
|
||
+
|
||
+*Release date: 2014-11-25*
|
||
+
|
||
+Core and Builtins
|
||
+-----------------
|
||
+
|
||
+- Issue #21963: backout issue #1856 patch (avoid crashes and lockups when
|
||
+ daemon threads run while the interpreter is shutting down; instead, these
|
||
+ threads are now killed when they try to take the GIL), as it seems to
|
||
+ break some existing code.
|
||
+
|
||
+- Issue #22604: Fix assertion error in debug mode when dividing a complex
|
||
+ number by (nan+0j).
|
||
+
|
||
+- Issue #22470: Fixed integer overflow issues in "backslashreplace" and
|
||
+ "xmlcharrefreplace" error handlers.
|
||
+
|
||
+- Issue #22526: Fix iterating through files with lines longer than 2^31 bytes.
|
||
+
|
||
+- Issue #22519: Fix overflow checking in PyString_Repr.
|
||
+
|
||
+- Issue #22518: Fix integer overflow issues in latin-1 encoding.
|
||
+
|
||
+- Issue #22379: Fix empty exception message in a TypeError raised in
|
||
+ ``str.join``.
|
||
+
|
||
+- Issue #22221: Now the source encoding declaration on the second line isn't
|
||
+ effective if the first line contains anything except a comment.
|
||
+
|
||
+- Issue #22023: Fix ``%S``, ``%R`` and ``%V`` formats of
|
||
+ :c:func:`PyUnicode_FromFormat`.
|
||
+
|
||
+- Issue #21591: Correctly handle qualified exec statements in tuple form by
|
||
+ moving compatibility layer from run-time to AST transformation.
|
||
+
|
||
+Library
|
||
+-------
|
||
+
|
||
+- Issue #22417: Verify certificates by default in httplib (PEP 476).
|
||
+
|
||
+- Issue #22927: Allow urllib.urlopen to take a *context* parameter to control
|
||
+ SSL settings for HTTPS connections.
|
||
+
|
||
+- Issue #22921: Allow SSLContext to take the *hostname* parameter even if
|
||
+ OpenSSL doesn't support SNI.
|
||
+
|
||
+- Issue #9003 and #22366: httplib.HTTPSConnection, urllib2.HTTPSHandler and
|
||
+ urllib2.urlopen now take optional arguments to allow for server certificate
|
||
+ checking, as recommended in public uses of HTTPS. This backport is part of PEP
|
||
+ 467.
|
||
+
|
||
+- Issue #12728: Different Unicode characters having the same uppercase but
|
||
+ different lowercase are now matched in case-insensitive regular expressions.
|
||
+
|
||
+- Issue #22821: Fixed fcntl() with integer argument on 64-bit big-endian
|
||
+ platforms.
|
||
+
|
||
+- Issue #17293: uuid.getnode() now determines MAC address on AIX using netstat.
|
||
+ Based on patch by Aivars Kalvāns.
|
||
+
|
||
+- Issue #22769: Fixed ttk.Treeview.tag_has() when called without arguments.
|
||
+
|
||
+- Issue #22787: Allow the keyfile argument of SSLContext.load_cert_chain to be
|
||
+ None.
|
||
+
|
||
+- Issue #22775: Fixed unpickling of Cookie.SimpleCookie with protocol 2.
|
||
+ Patch by Tim Graham.
|
||
+
|
||
+- Issue #22776: Brought excluded code into the scope of a try block in
|
||
+ SysLogHandler.emit().
|
||
+
|
||
+- Issue #17381: Fixed ranges handling in case-insensitive regular expressions.
|
||
+
|
||
+- Issue #19329: Optimized compiling charsets in regular expressions.
|
||
+
|
||
+- Issue #22410: Module level functions in the re module now cache compiled
|
||
+ locale-dependent regular expressions taking into account the locale.
|
||
+
|
||
+- Issue #8876: distutils now falls back to copying files when hard linking
|
||
+ doesn't work. This allows use with special filesystems such as VirtualBox
|
||
+ shared folders.
|
||
+
|
||
+- Issue #9351: Defaults set with set_defaults on an argparse subparser
|
||
+ are no longer ignored when also set on the parent parser.
|
||
+
|
||
+- Issue #20421: Add a .version() method to SSL sockets exposing the actual
|
||
+ protocol version in use.
|
||
+
|
||
+- Issue #22435: Fix a file descriptor leak when SocketServer bind fails.
|
||
+
|
||
+- Issue #13664: GzipFile now supports non-ascii Unicode filenames.
|
||
+
|
||
+- Issue #13096: Fixed segfault in CTypes POINTER handling of large
|
||
+ values.
|
||
+
|
||
+- Issue #11694: Raise ConversionError in xdrlib as documented. Patch
|
||
+ by Filip Gruszczyński and Claudiu Popa.
|
||
+
|
||
+- Issue #1686: Fix string.Template when overriding the pattern attribute.
|
||
+
|
||
+- Issue #11866: Eliminated race condition in the computation of names
|
||
+ for new threads.
|
||
+
|
||
+- Issue #22219: The zipfile module CLI now adds entries for directories
|
||
+ (including empty directories) in ZIP file.
|
||
+
|
||
+- Issue #22449: In the ssl.SSLContext.load_default_certs, consult the
|
||
+ enviromental variables SSL_CERT_DIR and SSL_CERT_FILE on Windows.
|
||
+
|
||
+- Issue #8473: doctest.testfile now uses universal newline mode to read
|
||
+ the test file.
|
||
+
|
||
+- Issue #20076: Added non derived UTF-8 aliases to locale aliases table.
|
||
+
|
||
+- Issue #20079: Added locales supported in glibc 2.18 to locale alias table.
|
||
+
|
||
+- Issue #22530: Allow the ``group()`` method of regular expression match objects
|
||
+ to take a ``long`` as an index.
|
||
+
|
||
+- Issue #22517: When a io.BufferedRWPair object is deallocated, clear its
|
||
+ weakrefs.
|
||
+
|
||
+- Issue #10510: distutils register and upload methods now use HTML standards
|
||
+ compliant CRLF line endings.
|
||
+
|
||
+- Issue #9850: Fixed macpath.join() for empty first component. Patch by
|
||
+ Oleg Oshmyan.
|
||
+
|
||
+- Issue #20912: Now directories added to ZIP file have correct Unix and MS-DOS
|
||
+ directory attributes.
|
||
+
|
||
+- Issue #21866: ZipFile.close() no longer writes ZIP64 central directory
|
||
+ records if allowZip64 is false.
|
||
+
|
||
+- Issue #22415: Fixed debugging output of the GROUPREF_EXISTS opcode in the re
|
||
+ module.
|
||
+
|
||
+- Issue #22423: Unhandled exception in thread no longer causes unhandled
|
||
+ AttributeError when sys.stderr is None.
|
||
+
|
||
+- Issue #22419: Limit the length of incoming HTTP request in wsgiref server to
|
||
+ 65536 bytes and send a 414 error code for higher lengths. Patch contributed
|
||
+ by Devin Cook.
|
||
+
|
||
+- Lax cookie parsing in http.cookies could be a security issue when combined
|
||
+ with non-standard cookie handling in some Web browsers. Reported by
|
||
+ Sergey Bobrov.
|
||
+
|
||
+- Issue #21147: sqlite3 now raises an exception if the request contains a null
|
||
+ character instead of truncate it. Based on patch by Victor Stinner.
|
||
+
|
||
+- Issue #21951: Fixed a crash in Tkinter on AIX when called Tcl command with
|
||
+ empty string or tuple argument.
|
||
+
|
||
+- Issue #21951: Tkinter now most likely raises MemoryError instead of crash
|
||
+ if the memory allocation fails.
|
||
+
|
||
+- Issue #22226: First letter no longer is stripped from the "status" key in
|
||
+ the result of Treeview.heading().
|
||
+
|
||
+- Issue #22051: turtledemo no longer reloads examples to re-run them.
|
||
+ Initialization of variables and gui setup should be done in main(),
|
||
+ which is called each time a demo is run, but not on import.
|
||
+
|
||
+- Issue #21597: The separator between the turtledemo text pane and the drawing
|
||
+ canvas can now be grabbed and dragged with a mouse. The code text pane can
|
||
+ be widened to easily view or copy the full width of the text. The canvas
|
||
+ can be widened on small screens. Original patches by Jan Kanis and Lita Cho.
|
||
+
|
||
+- Issue #18132: Turtledemo buttons no longer disappear when the window is
|
||
+ shrunk. Original patches by Jan Kanis and Lita Cho.
|
||
+
|
||
+- Issue #22312: Fix ntpath.splitdrive IndexError.
|
||
+
|
||
+- Issue #22216: smtplib now resets its state more completely after a quit. The
|
||
+ most obvious consequence of the previous behavior was a STARTTLS failure
|
||
+ during a connect/starttls/quit/connect/starttls sequence.
|
||
+
|
||
+- Issue #21305: os.urandom now caches a fd to /dev/urandom. This is a PEP 466
|
||
+ backport from Python 3.
|
||
+
|
||
+- Issue #21307: As part of PEP 466, backport hashlib.algorithms_guaranteed and
|
||
+ hashlib.algorithms_available.
|
||
+
|
||
+- Issue #22259: Fix segfault when attempting to fopen a file descriptor
|
||
+ corresponding to a directory.
|
||
+
|
||
+- Issue #22236: Fixed Tkinter images copying operations in NoDefaultRoot mode.
|
||
+
|
||
+- Issue #22191: Fixed warnings.__all__.
|
||
+
|
||
+- Issue #21308: Backport numerous features from Python's ssl module. This is
|
||
+ part of PEP 466.
|
||
+
|
||
+- Issue #15696: Add a __sizeof__ implementation for mmap objects on Windows.
|
||
+
|
||
+- Issue #8797: Raise HTTPError on failed Basic Authentication immediately.
|
||
+ Initial patch by Sam Bull.
|
||
+
|
||
+- Issue #22068: Avoided reference loops with Variables and Fonts in Tkinter.
|
||
+
|
||
+- Issue #21448: Changed FeedParser feed() to avoid O(N**2) behavior when
|
||
+ parsing long line. Original patch by Raymond Hettinger.
|
||
+
|
||
+- Issue #17923: glob() patterns ending with a slash no longer match non-dirs on
|
||
+ AIX. Based on patch by Delhallt.
|
||
+
|
||
+- Issue #21975: Fixed crash when using uninitialized sqlite3.Row (in particular
|
||
+ when unpickling pickled sqlite3.Row). sqlite3.Row is now initialized in the
|
||
+ __new__() method.
|
||
+
|
||
+- Issue #16037: HTTPMessage.readheaders() raises an HTTPException when more
|
||
+ than 100 headers are read. Patch by Jyrki Pulliainen and Daniel Eriksson.
|
||
+
|
||
+- Issue #21580: Now Tkinter correctly handles binary "data" and "maskdata"
|
||
+ configure options of tkinter.PhotoImage.
|
||
+
|
||
+- Issue #19612: subprocess.communicate() now also ignores EINVAL when using at
|
||
+ least two pipes.
|
||
+
|
||
+- Fix repr(_socket.socket) on Windows 64-bit: don't fail with OverflowError
|
||
+ on closed socket.
|
||
+
|
||
+- Issue #16133: The asynchat.async_chat.handle_read() method now ignores
|
||
+ socket.error() exceptions with blocking I/O errors: EAGAIN, EALREADY,
|
||
+ EINPROGRESS, or EWOULDBLOCK.
|
||
+
|
||
+- Issue #21990: Clean-up unnecessary and slow inner class definition in
|
||
+ saxutils (Contributed by Alex Gaynor).
|
||
+
|
||
+- Issue #1730136: Fix the comparison between a tkFont.Font and an object of
|
||
+ another kind.
|
||
+
|
||
+- Issue #19884: readline: Disable the meta modifier key if stdout is not
|
||
+ a terminal to not write the ANSI sequence "\033[1034h" into stdout. This
|
||
+ sequence is used on some terminal (ex: TERM=xterm-256color") to enable
|
||
+ support of 8 bit characters.
|
||
+
|
||
+- Issue #22017: Correct reference counting errror in the initialization of the
|
||
+ _warnings module.
|
||
+
|
||
+- Issue #21868: Prevent turtle crash when undo buffer set to a value less
|
||
+ than one.
|
||
+
|
||
+- Issue #21151: Fixed a segfault in the _winreg module when ``None`` is passed
|
||
+ as a ``REG_BINARY`` value to SetValueEx. Patch by John Ehresman.
|
||
+
|
||
+- Issue #21090: io.FileIO.readall() does not ignore I/O errors anymore. Before,
|
||
+ it ignored I/O errors if at least the first C call read() succeed.
|
||
+
|
||
+- Issue #19870: BaseCookie now parses 'secure' and 'httponly' flags.
|
||
+ Backport of issue #16611.
|
||
+
|
||
+- Issue #21923: Prevent AttributeError in distutils.sysconfig.customize_compiler
|
||
+ due to possible uninitialized _config_vars.
|
||
+
|
||
+- Issue #21323: Fix CGIHTTPServer to again handle scripts in CGI subdirectories,
|
||
+ broken by the fix for security issue #19435. Patch by Zach Byrne.
|
||
+
|
||
+- Issue #22199: Make get_makefile_filename() available in Lib/sysconfig.py
|
||
+ for 2.7 to match other versions of sysconfig.
|
||
+
|
||
+IDLE
|
||
+----
|
||
+
|
||
+- Issue #3068: Add Idle extension configuration dialog to Options menu.
|
||
+ Changes are written to HOME/.idlerc/config-extensions.cfg.
|
||
+ Original patch by Tal Einat.
|
||
+
|
||
+- Issue #16233: A module browser (File : Class Browser, Alt+C) requires a
|
||
+ editor window with a filename. When Class Browser is requested otherwise,
|
||
+ from a shell, output window, or 'Untitled' editor, Idle no longer displays
|
||
+ an error box. It now pops up an Open Module box (Alt+M). If a valid name
|
||
+ is entered and a module is opened, a corresponding browser is also opened.
|
||
+
|
||
+- Issue #4832: Save As to type Python files automatically adds .py to the
|
||
+ name you enter (even if your system does not display it). Some systems
|
||
+ automatically add .txt when type is Text files.
|
||
+
|
||
+- Issue #21986: Code objects are not normally pickled by the pickle module.
|
||
+ To match this, they are no longer pickled when running under Idle.
|
||
+
|
||
+- Issue #22221: IDLE now ignores the source encoding declaration on the second
|
||
+ line if the first line contains anything except a comment.
|
||
+
|
||
+- Issue #17390: Adjust Editor window title; remove 'Python',
|
||
+ move version to end.
|
||
+
|
||
+- Issue #14105: Idle debugger breakpoints no longer disappear
|
||
+ when inseting or deleting lines.
|
||
+
|
||
+Extension Modules
|
||
+-----------------
|
||
+
|
||
+- Issue #22381: Update zlib to 1.2.8.
|
||
+
|
||
+- Issue #22176: Update the ctypes module's libffi to v3.1. This release
|
||
+ adds support for the Linux AArch64 and POWERPC ELF ABIv2 little endian
|
||
+ architectures.
|
||
+
|
||
+Tools/Demos
|
||
+-----------
|
||
+
|
||
+- Issue #10712: 2to3 has a new "asserts" fixer that replaces deprecated names
|
||
+ of unittest methods (e.g. failUnlessEqual -> assertEqual).
|
||
+
|
||
+- Issue #22221: 2to3 and the findnocoding.py script now ignore the source
|
||
+ encoding declaration on the second line if the first line contains anything
|
||
+ except a comment.
|
||
+
|
||
+- Issue #22201: Command-line interface of the zipfile module now correctly
|
||
+ extracts ZIP files with directory entries. Patch by Ryan Wilson.
|
||
+
|
||
+Tests
|
||
+-----
|
||
+
|
||
+- Issue #22236: Tkinter tests now don't reuse default root window. New root
|
||
+ window is created for every test class.
|
||
+
|
||
+- Issue #18004: test_overflow in test_list by mistake consumed 40 GiB of memory
|
||
+ on 64-bit systems.
|
||
+
|
||
+- Issue #21976: Fix test_ssl to accept LibreSSL version strings. Thanks
|
||
+ to William Orr.
|
||
+
|
||
+- Issue #22770: Prevent some Tk segfaults on OS X when running gui tests.
|
||
+
|
||
+Build
|
||
+-----
|
||
+
|
||
+- Issue #20221: Removed conflicting (or circular) hypot definition when
|
||
+ compiled with VS 2010 or above. Initial patch by Tabrez Mohammed.
|
||
+
|
||
+- Issue #16537: Check whether self.extensions is empty in setup.py. Patch by
|
||
+ Jonathan Hosmer.
|
||
+
|
||
+- The documentation Makefile no longer automatically downloads Sphinx. Users are
|
||
+ now required to have Sphinx already installed to build the documentation.
|
||
+
|
||
+- Issue #21958: Define HAVE_ROUND when building with Visual Studio 2013 and
|
||
+ above. Patch by Zachary Turner.
|
||
+
|
||
+- Issue #15759: "make suspicious", "make linkcheck" and "make doctest" in Doc/
|
||
+ now display special message when and only when there are failures.
|
||
+
|
||
+- Issue #21166: Prevent possible segfaults and other random failures of
|
||
+ python --generate-posix-vars in pybuilddir.txt build target.
|
||
+
|
||
+- Issue #18096: Fix library order returned by python-config.
|
||
+
|
||
+- Issue #17219: Add library build dir for Python extension cross-builds.
|
||
+
|
||
+- Issue #22877: PEP 477 - OS X installer now installs pip.
|
||
+
|
||
+- Issue #22878: PEP 477 - "make install" and "make altinstall" can now install
|
||
+ or upgrade pip, using the bundled pip provided by the backported ensurepip
|
||
+ module. A configure option, --with-ensurepip[=upgrade|install|no], is
|
||
+ available to set the option for subsequent installs; the default for Python 2
|
||
+ in "no" (do not install or upgrade pip). The option can also be set with
|
||
+ "make [alt]install ENSUREPIP=[upgrade|install|no]".
|
||
+
|
||
+Windows
|
||
+-------
|
||
+
|
||
+- Issue #17896: The Windows build scripts now expect external library sources
|
||
+ to be in ``PCbuild\..\externals`` rather than ``PCbuild\..\..``.
|
||
+
|
||
+- Issue #17717: The Windows build scripts now use a copy of NASM pulled from
|
||
+ svn.python.org to build OpenSSL.
|
||
+
|
||
+- Issue #22644: The bundled version of OpenSSL has been updated to 1.0.1j.
|
||
+
|
||
+
|
||
+What's New in Python 2.7.8?
|
||
+===========================
|
||
+
|
||
+*Release date: 2014-06-29*
|
||
+
|
||
+Core and Builtins
|
||
+-----------------
|
||
+
|
||
+- Issue #4346: In PyObject_CallMethod and PyObject_CallMethodObjArgs, don't
|
||
+ overwrite the error set in PyObject_GetAttr.
|
||
+
|
||
+- Issue #21831: Avoid integer overflow when large sizes and offsets are given to
|
||
+ the buffer type. CVE-2014-7185.
|
||
+
|
||
+- Issue #19656: Running Python with the -3 option now also warns about
|
||
+ non-ascii bytes literals.
|
||
+
|
||
+- Issue #21642: If the conditional if-else expression, allow an integer written
|
||
+ with no space between itself and the ``else`` keyword (e.g. ``True if 42else
|
||
+ False``) to be valid syntax.
|
||
+
|
||
+- Issue #21523: Fix over-pessimistic computation of the stack effect of
|
||
+ some opcodes in the compiler. This also fixes a quadratic compilation
|
||
+ time issue noticeable when compiling code with a large number of "and"
|
||
+ and "or" operators.
|
||
+
|
||
+Library
|
||
+-------
|
||
+
|
||
+- Issue #21652: Prevent mimetypes.type_map from containing unicode keys on
|
||
+ Windows.
|
||
+
|
||
+- Issue #21729: Used the "with" statement in the dbm.dumb module to ensure
|
||
+ files closing.
|
||
+
|
||
+- Issue #21672: Fix the behavior of ntpath.join on UNC-style paths.
|
||
+
|
||
+- Issue #19145: The times argument for itertools.repeat now handles
|
||
+ negative values the same way for keyword arguments as it does for
|
||
+ positional arguments.
|
||
+
|
||
+- Issue #21832: Require named tuple inputs to be exact strings.
|
||
+
|
||
+- Issue #8343: Named group error messages in the re module did not show
|
||
+ the name of the erroneous group.
|
||
+
|
||
+- Issue #21491: SocketServer: Fix a race condition in child processes reaping.
|
||
+
|
||
+- Issue #21635: The difflib SequenceMatcher.get_matching_blocks() method
|
||
+ cache didn't match the actual result. The former was a list of tuples
|
||
+ and the latter was a list of named tuples.
|
||
+
|
||
+- Issue #21722: The distutils "upload" command now exits with a non-zero
|
||
+ return code when uploading fails. Patch by Martin Dengler.
|
||
+
|
||
+- Issue #21766: Prevent a security hole in CGIHTTPServer by URL unquoting paths
|
||
+ before checking for a CGI script at that path.
|
||
+
|
||
+- Issue #21310: Fixed possible resource leak in failed open().
|
||
+
|
||
+- Issue #21304: Backport the key derivation function hashlib.pbkdf2_hmac from
|
||
+ Python 3 per PEP 466.
|
||
+
|
||
+- Issue #11709: Fix the pydoc.help function to not fail when sys.stdin is not a
|
||
+ valid file.
|
||
+
|
||
+- Issue #13223: Fix pydoc.writedoc so that the HTML documentation for methods
|
||
+ that use 'self' in the example code is generated correctly.
|
||
+
|
||
+- Issue #21552: Fixed possible integer overflow of too long string lengths in
|
||
+ the tkinter module on 64-bit platforms.
|
||
+
|
||
+- Issue #14315: The zipfile module now ignores extra fields in the central
|
||
+ directory that are too short to be parsed instead of letting a struct.unpack
|
||
+ error bubble up as this "bad data" appears in many real world zip files in
|
||
+ the wild and is ignored by other zip tools.
|
||
+
|
||
+- Issue #21402: Tkinter.ttk now works when default root window is not set.
|
||
+
|
||
+- Issue #10203: sqlite3.Row now truly supports sequence protocol. In particulr
|
||
+ it supports reverse() and negative indices. Original patch by Claudiu Popa.
|
||
+
|
||
+- Issue #8743: Fix interoperability between set objects and the
|
||
+ collections.Set() abstract base class.
|
||
+
|
||
+- Issue #21481: Argparse equality and inequality tests now return
|
||
+ NotImplemented when comparing to an unknown type.
|
||
+
|
||
+IDLE
|
||
+----
|
||
+
|
||
+- Issue #21940: Add unittest for WidgetRedirector. Initial patch by Saimadhav
|
||
+ Heblikar.
|
||
+
|
||
+- Issue #18592: Add unittest for SearchDialogBase. Patch by Phil Webster.
|
||
+
|
||
+- Issue #21694: Add unittest for ParenMatch. Patch by Saimadhav Heblikar.
|
||
+
|
||
+- Issue #21686: add unittest for HyperParser. Original patch by Saimadhav
|
||
+ Heblikar.
|
||
+
|
||
+- Issue #12387: Add missing upper(lower)case versions of default Windows key
|
||
+ bindings for Idle so Caps Lock does not disable them. Patch by Roger Serwy.
|
||
+
|
||
+- Issue #21695: Closing a Find-in-files output window while the search is
|
||
+ still in progress no longer closes Idle.
|
||
+
|
||
+- Issue #18910: Add unittest for textView. Patch by Phil Webster.
|
||
+
|
||
+- Issue #18292: Add unittest for AutoExpand. Patch by Saihadhav Heblikar.
|
||
+
|
||
+- Issue #18409: Add unittest for AutoComplete. Patch by Phil Webster.
|
||
+
|
||
+Tests
|
||
+-----
|
||
+
|
||
+- Issue #20155: Changed HTTP method names in failing tests in test_httpservers
|
||
+ so that packet filtering software (specifically Windows Base Filtering Engine)
|
||
+ does not interfere with the transaction semantics expected by the tests.
|
||
+
|
||
+- Issue #19493: Refactored the ctypes test package to skip tests explicitly
|
||
+ rather than silently.
|
||
+
|
||
+- Issue #18492: All resources are now allowed when tests are not run by
|
||
+ regrtest.py.
|
||
+
|
||
+- Issue #21605: Added tests for Tkinter images.
|
||
+
|
||
+- Issue #21493: Added test for ntpath.expanduser(). Original patch by
|
||
+ Claudiu Popa.
|
||
+
|
||
+- Issue #19925: Added tests for the spwd module. Original patch by Vajrasky Kok.
|
||
+
|
||
+- Issue #13355: random.triangular() no longer fails with a ZeroDivisionError
|
||
+ when low equals high.
|
||
+
|
||
+- Issue #21522: Added Tkinter tests for Listbox.itemconfigure(),
|
||
+ PanedWindow.paneconfigure(), and Menu.entryconfigure().
|
||
+
|
||
+- Issue #20635: Added tests for Tk geometry managers.
|
||
+
|
||
+Build
|
||
+-----
|
||
+
|
||
+- Issue #21811: Anticipated fixes to support OS X versions > 10.9.
|
||
+
|
||
+Windows
|
||
+-------
|
||
+
|
||
+- Issue #21671, CVE-2014-0224: The bundled version of OpenSSL has been
|
||
+ updated to 1.0.1h.
|
||
+
|
||
+
|
||
+What's New in Python 2.7.7
|
||
+==========================
|
||
+
|
||
+*Release date: 2014-05-31*
|
||
+
|
||
+Build
|
||
+-----
|
||
+
|
||
+- Issue #21462: Build the Windows installers with OpenSSL 1.0.1g.
|
||
+
|
||
+- Issue #19866: Include some test data in the Windows installers, so tests don't
|
||
+ fail.
|
||
+
|
||
+
|
||
+What's New in Python 2.7.7 release candidate 1?
|
||
+===============================================
|
||
+
|
||
+*Release date: 2014-05-17*
|
||
+
|
||
+Core and Builtins
|
||
+-----------------
|
||
+
|
||
+- Issue #21350: Fix file.writelines() to accept arbitrary buffer objects,
|
||
+ as advertised. Patch by Brian Kearns.
|
||
+
|
||
+- Issue #20437: Fixed 43 potential bugs when deleting objects references.
|
||
+
|
||
+- Issue #21134: Fix segfault when str is called on an uninitialized
|
||
+ UnicodeEncodeError, UnicodeDecodeError, or UnicodeTranslateError object.
|
||
+
|
||
+- Issue #20494: Ensure that free()d memory arenas are really released on POSIX
|
||
+ systems supporting anonymous memory mappings. Patch by Charles-François
|
||
+ Natali.
|
||
+
|
||
+- Issue #17825: Cursor "^" is correctly positioned for SyntaxError and
|
||
+ IndentationError.
|
||
+
|
||
+- Raise a better error when non-unicode codecs are used for a file's coding
|
||
+ cookie.
|
||
+
|
||
+- Issue #17976: Fixed potential problem with file.write() not detecting IO error
|
||
+ by inspecting the return value of fwrite(). Based on patches by Jaakko Moisio
|
||
+ and Victor Stinner.
|
||
+
|
||
+- Issue #14432: Generator now clears the borrowed reference to the thread
|
||
+ state. Fix a crash when a generator is created in a C thread that is
|
||
+ destroyed while the generator is still used. The issue was that a generator
|
||
+ contains a frame, and the frame kept a reference to the Python state of the
|
||
+ destroyed C thread. The crash occurs when a trace function is setup.
|
||
+
|
||
+- Issue #19932: Fix typo in import.h, missing whitespaces in function prototypes.
|
||
+
|
||
+- Issue #19638: Fix possible crash / undefined behaviour from huge (more than 2
|
||
+ billion characters) input strings in _Py_dg_strtod.
|
||
+
|
||
+- Issue #12546: Allow \x00 to be used as a fill character when using str, int,
|
||
+ float, and complex __format__ methods.
|
||
+
|
||
+Library
|
||
+-------
|
||
+
|
||
+- Issue #10744: Fix PEP 3118 format strings on ctypes objects with a nontrivial
|
||
+ shape.
|
||
+
|
||
+- Issue #7776: Backport Fix ``Host:'' header and reconnection when using
|
||
+ http.client.HTTPConnection.set_tunnel() from Python 3. Patch by Nikolaus
|
||
+ Rath.
|
||
+
|
||
+- Issue #21306: Backport hmac.compare_digest from Python 3. This is part of PEP
|
||
+ 466.
|
||
+
|
||
+- Issue #21470: Do a better job seeding the random number generator by
|
||
+ using enough bytes to span the full state space of the Mersenne Twister.
|
||
+
|
||
+- Issue #21469: Reduced the risk of false positives in robotparser by
|
||
+ checking to make sure that robots.txt has been read or does not exist
|
||
+ prior to returning True in can_fetch().
|
||
+
|
||
+- Issue #21321: itertools.islice() now releases the reference to the source
|
||
+ iterator when the slice is exhausted. Patch by Anton Afanasyev.
|
||
+
|
||
+- Issue #9291: Do not attempt to re-encode mimetype data read from registry in
|
||
+ ANSI mode. Initial patches by Dmitry Jemerov & Vladimir Iofik.
|
||
+
|
||
+- Issue #21349: Passing a memoryview to _winreg.SetValueEx now correctly raises
|
||
+ a TypeError where it previously crashed the interpreter. Patch by Brian Kearns
|
||
+
|
||
+- Fix arbitrary memory access in JSONDecoder.raw_decode with a negative second
|
||
+ parameter. Bug reported by Guido Vranken.
|
||
+
|
||
+- Issue #21172: isinstance check relaxed from dict to collections.Mapping.
|
||
+
|
||
+- Issue #21191: In os.fdopen, never close the file descriptor when an exception
|
||
+ happens.
|
||
+
|
||
+- Issue #21149: Improved thread-safety in logging cleanup during interpreter
|
||
+ shutdown. Thanks to Devin Jeanpierre for the patch.
|
||
+
|
||
+- Fix possible overflow bug in strop.expandtabs. You shouldn't be using this
|
||
+ module!
|
||
+
|
||
+- Issue #20145: `assertRaisesRegex` now raises a TypeError if the second
|
||
+ argument is not a string or compiled regex.
|
||
+
|
||
+- Issue #21058: Fix a leak of file descriptor in tempfile.NamedTemporaryFile(),
|
||
+ close the file descriptor if os.fdopen() fails
|
||
+
|
||
+- Issue #20283: RE pattern methods now accept the string keyword parameters
|
||
+ as documented. The pattern and source keyword parameters are left as
|
||
+ deprecated aliases.
|
||
+
|
||
+- Issue #11599: When an external command (e.g. compiler) fails, distutils now
|
||
+ prints out the whole command line (instead of just the command name) if the
|
||
+ environment variable DISTUTILS_DEBUG is set.
|
||
+
|
||
+- Issue #4931: distutils should not produce unhelpful "error: None" messages
|
||
+ anymore. distutils.util.grok_environment_error is kept but doc-deprecated.
|
||
+
|
||
+- Improve the random module's default seeding to use 256 bits of entropy
|
||
+ from os.urandom(). This was already done for Python 3, mildly improving
|
||
+ security with a bigger seed space.
|
||
+
|
||
+- Issue #15618: Make turtle.py compatible with 'from __future__ import
|
||
+ unicode_literals'. Initial patch by Juancarlo Añez.
|
||
+
|
||
+- Issue #20501: fileinput module no longer reads whole file into memory when using
|
||
+ fileinput.hook_encoded.
|
||
+
|
||
+- Issue #6815: os.path.expandvars() now supports non-ASCII Unicode environment
|
||
+ variables names and values.
|
||
+
|
||
+- Issue #20635: Fixed grid_columnconfigure() and grid_rowconfigure() methods of
|
||
+ Tkinter widgets to work in wantobjects=True mode.
|
||
+
|
||
+- Issue #17671: Fixed a crash when use non-initialized io.BufferedRWPair.
|
||
+ Based on patch by Stephen Tu.
|
||
+
|
||
+- Issue #8478: Untokenizer.compat processes first token from iterator input.
|
||
+ Patch based on lines from Georg Brandl, Eric Snow, and Gareth Rees.
|
||
+
|
||
+- Issue #20594: Avoid name clash with the libc function posix_close.
|
||
+
|
||
+- Issue #19856: shutil.move() failed to move a directory to other directory
|
||
+ on Windows if source name ends with os.altsep.
|
||
+
|
||
+- Issue #14983: email.generator now always adds a line end after each MIME
|
||
+ boundary marker, instead of doing so only when there is an epilogue. This
|
||
+ fixes an RFC compliance bug and solves an issue with signed MIME parts.
|
||
+
|
||
+- Issue #20013: Some imap servers disconnect if the current mailbox is
|
||
+ deleted, and imaplib did not handle that case gracefully. Now it
|
||
+ handles the 'bye' correctly.
|
||
+
|
||
+- Issue #20426: When passing the re.DEBUG flag, re.compile() displays the
|
||
+ debug output every time it is called, regardless of the compilation cache.
|
||
+
|
||
+- Issue #20368: The null character now correctly passed from Tcl to Python (in
|
||
+ unicode strings only). Improved error handling in variables-related commands.
|
||
+
|
||
+- Issue #20435: Fix _pyio.StringIO.getvalue() to take into account newline
|
||
+ translation settings.
|
||
+
|
||
+- Issue #20288: fix handling of invalid numeric charrefs in HTMLParser.
|
||
+
|
||
+- Issue #19456: ntpath.join() now joins relative paths correctly when a drive
|
||
+ is present.
|
||
+
|
||
+- Issue #8260: The read(), readline() and readlines() methods of
|
||
+ codecs.StreamReader returned incomplete data when were called after
|
||
+ readline() or read(size). Based on patch by Amaury Forgeot d'Arc.
|
||
+
|
||
+- Issue #20374: Fix build with GNU readline >= 6.3.
|
||
+
|
||
+- Issue #14548: Make multiprocessing finalizers check pid before
|
||
+ running to cope with possibility of gc running just after fork.
|
||
+ (Backport from 3.x.)
|
||
+
|
||
+- Issue #20262: Warnings are raised now when duplicate names are added in the
|
||
+ ZIP file or too long ZIP file comment is truncated.
|
||
+
|
||
+- Issue #20270: urllib and urlparse now support empty ports.
|
||
+
|
||
+- Issue #20243: TarFile no longer raise ReadError when opened in write mode.
|
||
+
|
||
+- Issue #20245: The open functions in the tarfile module now correctly handle
|
||
+ empty mode.
|
||
+
|
||
+- Issue #20086: Restored the use of locale-independent mapping instead of
|
||
+ locale-dependent str.lower() in locale.normalize().
|
||
+
|
||
+- Issue #20246: Fix buffer overflow in socket.recvfrom_into.
|
||
+
|
||
+- Issue #19082: Working SimpleXMLRPCServer and xmlrpclib examples, both in
|
||
+ modules and documentation.
|
||
+
|
||
+- Issue #13107: argparse and optparse no longer raises an exception when output
|
||
+ a help on environment with too small COLUMNS. Based on patch by
|
||
+ Elazar Gershuni.
|
||
+
|
||
+- Issue #20207: Always disable SSLv2 except when PROTOCOL_SSLv2 is explicitly
|
||
+ asked for.
|
||
+
|
||
+- Issue #20072: Fixed multiple errors in tkinter with wantobjects is False.
|
||
+
|
||
+- Issue #1065986: pydoc can now handle unicode strings.
|
||
+
|
||
+- Issue #16039: CVE-2013-1752: Change use of readline in imaplib module to
|
||
+ limit line length. Patch by Emil Lind.
|
||
+
|
||
+- Issue #19422: Explicitly disallow non-SOCK_STREAM sockets in the ssl
|
||
+ module, rather than silently let them emit clear text data.
|
||
+
|
||
+- Issue #20027: Fixed locale aliases for devanagari locales.
|
||
+
|
||
+- Issue #20067: Tkinter variables now work when wantobjects is false.
|
||
+
|
||
+- Issue #19020: Tkinter now uses splitlist() instead of split() in configure
|
||
+ methods.
|
||
+
|
||
+- Issue #12226: HTTPS is now used by default when connecting to PyPI.
|
||
+
|
||
+- Issue #20048: Fixed ZipExtFile.peek() when it is called on the boundary of
|
||
+ the uncompress buffer and read() goes through more than one readbuffer.
|
||
+
|
||
+- Issue #20034: Updated alias mapping to most recent locale.alias file
|
||
+ from X.org distribution using makelocalealias.py.
|
||
+
|
||
+- Issue #5815: Fixed support for locales with modifiers. Fixed support for
|
||
+ locale encodings with hyphens.
|
||
+
|
||
+- Issue #20026: Fix the sqlite module to handle correctly invalid isolation
|
||
+ level (wrong type).
|
||
+
|
||
+- Issue #18829: csv.Dialect() now checks type for delimiter, escapechar and
|
||
+ quotechar fields. Original patch by Vajrasky Kok.
|
||
+
|
||
+- Issue #19855: uuid.getnode() on Unix now looks on the PATH for the
|
||
+ executables used to find the mac address, with /sbin and /usr/sbin as
|
||
+ fallbacks.
|
||
+
|
||
+- Issue #20007: HTTPResponse.read(0) no more prematurely closes connection.
|
||
+ Original patch by Simon Sapin.
|
||
+
|
||
+- Issue #19912: Fixed numerous bugs in ntpath.splitunc().
|
||
+
|
||
+- Issue #19623: Fixed writing to unseekable files in the aifc module.
|
||
+ Fixed writing 'ulaw' (lower case) compressed AIFC files.
|
||
+
|
||
+- Issue #17919: select.poll.register() again works with poll.POLLNVAL on AIX.
|
||
+ Fixed integer overflow in the eventmask parameter.
|
||
+
|
||
+- Issue #17200: telnetlib's read_until and expect timeout was broken by the
|
||
+ fix to Issue #14635 in Python 2.7.4 to be interpreted as milliseconds
|
||
+ instead of seconds when the platform supports select.poll (ie: everywhere).
|
||
+ It is now treated as seconds once again.
|
||
+
|
||
+- Issue #19099: The struct module now supports Unicode format strings.
|
||
+
|
||
+- Issue #19878: Fix segfault in bz2 module after calling __init__ twice with
|
||
+ non-existent filename. Initial patch by Vajrasky Kok.
|
||
+
|
||
+- Issue #16373: Prevent infinite recursion for ABC Set class comparisons.
|
||
+
|
||
+- Issue #19138: doctest's IGNORE_EXCEPTION_DETAIL now allows a match when
|
||
+ no exception detail exists (no colon following the exception's name, or
|
||
+ a colon does follow but no text follows the colon).
|
||
+
|
||
+- Issue #16231: Fixed pickle.Pickler to only fallback to its default pickling
|
||
+ behaviour when Pickler.persistent_id returns None, but not for any other
|
||
+ false values. This allows false values other than None to be used as
|
||
+ persistent IDs. This behaviour is consistent with cPickle.
|
||
+
|
||
+- Issue #11508: Fixed uuid.getnode() and uuid.uuid1() on environment with
|
||
+ virtual interface. Original patch by Kent Frazier.
|
||
+
|
||
+- Issue #11489: JSON decoder now accepts lone surrogates.
|
||
+
|
||
+- Fix test.test_support.bind_port() to not cause an error when Python was
|
||
+ compiled on a system with SO_REUSEPORT defined in the headers but run on
|
||
+ a system with an OS kernel that does not support that new socket option.
|
||
+
|
||
+- Issue #19633: Fixed writing not compressed 16- and 32-bit wave files on
|
||
+ big-endian platforms.
|
||
+
|
||
+- Issue #19449: in csv's writerow, handle non-string keys when generating the
|
||
+ error message that certain keys are not in the 'fieldnames' list.
|
||
+
|
||
+- Issue #12853: Fix NameError in distutils.command.upload.
|
||
+
|
||
+- Issue #19523: Closed FileHandler leak which occurred when delay was set.
|
||
+
|
||
+- Issue #1575020: Fixed support of 24-bit wave files on big-endian platforms.
|
||
+
|
||
+- Issue #19480: HTMLParser now accepts all valid start-tag names as defined
|
||
+ by the HTML5 standard.
|
||
+
|
||
+- Issue #17827: Add the missing documentation for ``codecs.encode`` and
|
||
+ ``codecs.decode``.
|
||
+
|
||
+- Issue #6157: Fixed Tkinter.Text.debug(). Original patch by Guilherme Polo.
|
||
+
|
||
+- Issue #6160: The bbox() method of tkinter.Spinbox now returns a tuple of
|
||
+ integers instead of a string. Based on patch by Guilherme Polo.
|
||
+
|
||
+- Issue #19286: Directories in ``package_data`` are no longer added to
|
||
+ the filelist, preventing failure outlined in the ticket.
|
||
+
|
||
+- Issue #6676: Ensure a meaningful exception is raised when attempting
|
||
+ to parse more than one XML document per pyexpat xmlparser instance.
|
||
+ (Original patches by Hirokazu Yamamoto and Amaury Forgeot d'Arc, with
|
||
+ suggested wording by David Gutteridge)
|
||
+
|
||
+- Issue #21311: Avoid exception in _osx_support with non-standard compiler
|
||
+ configurations. Patch by John Szakmeister.
|
||
+
|
||
+Tools/Demos
|
||
+-----------
|
||
+
|
||
+- Issue #3561: The Windows installer now has an option, off by default, for
|
||
+ placing the Python installation into the system "Path" environment variable.
|
||
+ This was backported from Python 3.3.
|
||
+
|
||
+- Add support for ``yield from`` to 2to3.
|
||
+
|
||
+- Add support for the PEP 465 matrix multiplication operator to 2to3.
|
||
+
|
||
+- Issue #19936: Added executable bits or shebang lines to Python scripts which
|
||
+ requires them. Disable executable bits and shebang lines in test and
|
||
+ benchmark files in order to prevent using a random system python, and in
|
||
+ source files of modules which don't provide command line interface.
|
||
+
|
||
+IDLE
|
||
+----
|
||
+
|
||
+- Issue #18104: Add idlelib/idle_test/htest.py with a few sample tests to begin
|
||
+ consolidating and improving human-validated tests of Idle. Change other files
|
||
+ as needed to work with htest. Running the module as __main__ runs all tests.
|
||
+
|
||
+- Issue #21139: Change default paragraph width to 72, the PEP 8 recommendation.
|
||
+
|
||
+- Issue #21284: Paragraph reformat test passes after user changes reformat width.
|
||
+
|
||
+- Issue #20406: Use Python application icons for Idle window title bars.
|
||
+ Patch mostly by Serhiy Storchaka.
|
||
+
|
||
+- Issue #21029: Occurrences of "print" are now consistently colored as
|
||
+ being a keyword (the colorizer doesn't know if print functions are
|
||
+ enabled in the source).
|
||
+
|
||
+- Issue #17721: Remove non-functional configuration dialog help button until we
|
||
+ make it actually gives some help when clicked. Patch by Guilherme Simões.
|
||
+
|
||
+- Issue #17390: Add Python version to Idle editor window title bar.
|
||
+ Original patches by Edmond Burnett and Kent Johnson.
|
||
+
|
||
+- Issue #20058: sys.stdin.readline() in IDLE now always returns only one line.
|
||
+
|
||
+- Issue #19481: print() of unicode, str or bytearray subclass instance in IDLE
|
||
+ no more hangs.
|
||
+
|
||
+- Issue #18270: Prevent possible IDLE AttributeError on OS X when no initial
|
||
+ shell window is present.
|
||
+
|
||
+- Issue #17654: Ensure IDLE menus are customized properly on OS X for
|
||
+ non-framework builds and for all variants of Tk.
|
||
+
|
||
+Tests
|
||
+-----
|
||
+
|
||
+- Issue #17752: Fix distutils tests when run from the installed location.
|
||
+
|
||
+- Issue #18604: Consolidated checks for GUI availability. All platforms now
|
||
+ at least check whether Tk can be instantiated when the GUI resource is
|
||
+ requested.
|
||
+
|
||
+- Issue #20946: Correct alignment assumptions of some ctypes tests.
|
||
+
|
||
+- Issue #20743: Fix a reference leak in test_tcl.
|
||
+
|
||
+- Issue #20510: Rewrote test_exit in test_sys to match existing comments,
|
||
+ use modern unittest features, and use helpers from test.script_helper
|
||
+ instead of using subprocess directly. Initial patch by Gareth Rees.
|
||
+
|
||
+- Issue #20532: Tests which use _testcapi now are marked as CPython only.
|
||
+
|
||
+- Issue #19920: Added tests for TarFile.list(). Based on patch by Vajrasky Kok.
|
||
+
|
||
+- Issue #19990: Added tests for the imghdr module. Based on patch by
|
||
+ Claudiu Popa.
|
||
+
|
||
+- Issue #19804: The test_find_mac test in test_uuid is now skipped if the
|
||
+ ifconfig executable is not available.
|
||
+
|
||
+- Issue #19886: Use better estimated memory requirements for bigmem tests.
|
||
+
|
||
+- Backported tests for Tkinter variables.
|
||
+
|
||
+- Issue #19320: test_tcl no longer fails when wantobjects is false.
|
||
+
|
||
+- Issue #19683: Removed empty tests from test_minidom. Initial patch by
|
||
+ Ajitesh Gupta.
|
||
+
|
||
+- Issue #19928: Implemented a test for repr() of cell objects.
|
||
+
|
||
+- Issue #19595, #19987: Re-enabled a long-disabled test in test_winsound.
|
||
+
|
||
+- Issue #19588: Fixed tests in test_random that were silently skipped most
|
||
+ of the time. Patch by Julian Gindi.
|
||
+
|
||
+- Issue #17883: Tweak test_tcl testLoadWithUNC to skip the test in the
|
||
+ event of a permission error on Windows and to properly report other
|
||
+ skip conditions.
|
||
+
|
||
+- Issue #17883: Backported _is_gui_available() in test.test_support to
|
||
+ avoid hanging Windows buildbots on test_ttk_guionly.
|
||
+
|
||
+- Issue #18702, #19572: All skipped tests now reported as skipped.
|
||
+
|
||
+- Issue #19085: Added basic tests for all tkinter widget options.
|
||
+
|
||
+- Issue #20605: Make test_socket getaddrinfo OS X segfault test more robust.
|
||
+
|
||
+- Issue #20939: Avoid various network test failures due to new
|
||
+ redirect of http://www.python.org/ to https://www.python.org:
|
||
+ use http://www.example.com instead.
|
||
+
|
||
+- Issue #21093: Prevent failures of ctypes test_macholib on OS X if a
|
||
+ copy of libz exists in $HOME/lib or /usr/local/lib.
|
||
+
|
||
+Build
|
||
+-----
|
||
+
|
||
+- Issue #21285: Refactor and fix curses configure check to always search
|
||
+ in a ncursesw directory.
|
||
+
|
||
+Documentation
|
||
+-------------
|
||
+
|
||
+- Issue #20255: Update the about and bugs pages.
|
||
+
|
||
+- Issue #18840: Introduce the json module in the tutorial, and de-emphasize
|
||
+ the pickle module.
|
||
+
|
||
+- Issue #19795: Improved markup of True/False constants.
|
||
+
|
||
+Windows
|
||
+-------
|
||
+
|
||
+- Issue #21303, #20565: Updated the version of Tcl/Tk included in the
|
||
+ installer from 8.5.2 to 8.5.15.
|
||
+
|
||
+Mac OS X
|
||
+--------
|
||
+
|
||
+- As of 2.7.8, the 32-bit-only installer will support OS X 10.5
|
||
+ and later systems as is currently done for Python 3.x installers.
|
||
+ For 2.7.7 only, we will provide three installers:
|
||
+ the legacy deprecated 10.3+ 32-bit-only format;
|
||
+ the newer 10.5+ 32-bit-only format;
|
||
+ and the unchanged 10.6+ 64-/32-bit format.
|
||
+ Although binary installers will no longer be available from
|
||
+ python.org as of 2.7.8, it will still be possible to build from
|
||
+ source on 10.3.9 and 10.4 systems if necessary.
|
||
+ See Mac/BuildScript/README.txt for more information.
|
||
+
|
||
+
|
||
+Whats' New in Python 2.7.6?
|
||
+===========================
|
||
+
|
||
+*Release date: 2013-11-10*
|
||
+
|
||
+Library
|
||
+-------
|
||
+
|
||
+- Issue #19435: Fix directory traversal attack on CGIHttpRequestHandler.
|
||
+
|
||
+IDLE
|
||
+----
|
||
+
|
||
+- Issue #19426: Fixed the opening of Python source file with specified encoding.
|
||
+
|
||
+Tests
|
||
+-----
|
||
+
|
||
+- Issue #19457: Fixed xmlcharrefreplace tests on wide build when tests are
|
||
+ loaded from .py[co] files.
|
||
+
|
||
+Build
|
||
+-----
|
||
+
|
||
+- Issue #15663: Revert OS X installer built-in Tcl/Tk support for 2.7.6.
|
||
+ Some third-party projects, such as Matplotlib and PIL/Pillow,
|
||
+ depended on being able to build with Tcl and Tk frameworks in
|
||
+ /Library/Frameworks.
|
||
+
|
||
+
|
||
+What's New in Python 2.7.6 release candidate 1?
|
||
+===============================================
|
||
+
|
||
+*Release date: 2013-10-26*
|
||
+
|
||
+Core and Builtins
|
||
+-----------------
|
||
+
|
||
+- Issue #18603: Ensure that PyOS_mystricmp and PyOS_mystrnicmp are in the
|
||
+ Python executable and not removed by the linker's optimizer.
|
||
+
|
||
+- Issue #19279: UTF-7 decoder no more produces illegal unicode strings.
|
||
+
|
||
+- Issue #18739: Fix an inconsistency between math.log(n) and math.log(long(n));
|
||
+ the results could be off from one another by a ulp or two.
|
||
+
|
||
+- Issue #13461: Fix a crash in the "replace" error handler on 64-bit platforms.
|
||
+ Patch by Yogesh Chaudhari.
|
||
+
|
||
+- Issue #15866: The xmlcharrefreplace error handler no more produces two XML
|
||
+ entities for a non-BMP character on narrow build.
|
||
+
|
||
+- Issue #18184: PyUnicode_FromFormat() and PyUnicode_FromFormatV() now raise
|
||
+ OverflowError when an argument of %c format is out of range.
|
||
+
|
||
+- Issue #18137: Detect integer overflow on precision in float.__format__()
|
||
+ and complex.__format__().
|
||
+
|
||
+- Issue #18038: SyntaxError raised during compilation sources with illegal
|
||
+ encoding now always contains an encoding name.
|
||
+
|
||
+- Issue #18019: Fix crash in the repr of dictionaries containing their own
|
||
+ views.
|
||
+
|
||
+- Issue #18427: str.replace could crash the interpreter with huge strings.
|
||
+
|
||
+Library
|
||
+-------
|
||
+
|
||
+- Issue #19393: Fix symtable.symtable function to not be confused when there are
|
||
+ functions or classes named "top".
|
||
+
|
||
+- Issue #19327: Fixed the working of regular expressions with too big charset.
|
||
+
|
||
+- Issue #19350: Increasing the test coverage of macurl2path. Patch by Colin
|
||
+ Williams.
|
||
+
|
||
+- Issue #19352: Fix unittest discovery when a module can be reached
|
||
+ through several paths (e.g. under Debian/Ubuntu with virtualenv).
|
||
+
|
||
+- Issue #15207: Fix mimetypes to read from correct part of Windows registry
|
||
+ Original patch by Dave Chambers
|
||
+
|
||
+- Issue #8964: fix platform._sys_version to handle IronPython 2.6+.
|
||
+ Patch by Martin Matusiak.
|
||
+
|
||
+- Issue #16038: CVE-2013-1752: ftplib: Limit amount of data read by
|
||
+ limiting the call to readline(). Original patch by Michał
|
||
+ Jastrzębski and Giampaolo Rodola.
|
||
+
|
||
+- Issue #19276: Fixed the wave module on 64-bit big-endian platforms.
|
||
+
|
||
+- Issue #18458: Prevent crashes with newer versions of libedit. Its readline
|
||
+ emulation has changed from 0-based indexing to 1-based like gnu readline.
|
||
+ Original patch by Ronald Oussoren.
|
||
+
|
||
+- Issue #18919: If the close() method of a writer in the sunau or wave module
|
||
+ failed, second invocation of close() and destructor no more raise an
|
||
+ exception. Second invocation of close() on sunau writer now has no effects.
|
||
+ The aifc module now accepts lower case of names of the 'ulaw' and 'alaw'
|
||
+ codecs.
|
||
+
|
||
+- Issue #19131: The aifc module now correctly reads and writes sampwidth of
|
||
+ compressed streams.
|
||
+
|
||
+- Issue #19158: A rare race in BoundedSemaphore could allow .release() too
|
||
+ often.
|
||
+
|
||
+- Issue #18037: 2to3 now escapes '\u' and '\U' in native strings.
|
||
+
|
||
+- Issue #19137: The pprint module now correctly formats empty set and frozenset
|
||
+ and instances of set and frozenset subclasses.
|
||
+
|
||
+- Issue #16040: CVE-2013-1752: nntplib: Limit maximum line lengths to 2048 to
|
||
+ prevent readline() calls from consuming too much memory. Patch by Jyrki
|
||
+ Pulliainen.
|
||
+
|
||
+- Issue #12641: Avoid passing "-mno-cygwin" to the mingw32 compiler, except
|
||
+ when necessary. Patch by Oscar Benjamin.
|
||
+
|
||
+- Properly initialize all fields of a SSL object after allocation.
|
||
+
|
||
+- Issue #4366: Fix building extensions on all platforms when --enable-shared
|
||
+ is used.
|
||
+
|
||
+- Issue #18950: Fix miscellaneous bugs in the sunau module.
|
||
+ Au_read.readframes() now updates current file position and reads correct
|
||
+ number of frames from multichannel stream. Au_write.writeframesraw() now
|
||
+ correctly updates current file position. Au_read and Au_write now correctly
|
||
+ work with file object if start file position is not a zero.
|
||
+
|
||
+- Issue #18050: Fixed an incompatibility of the re module with Python 2.7.3
|
||
+ and older binaries.
|
||
+
|
||
+- Issue #19037: The mailbox module now makes all changes to maildir files
|
||
+ before moving them into place, to avoid race conditions with other programs
|
||
+ that may be accessing the maildir directory.
|
||
+
|
||
+- Issue #14984: On POSIX systems, when netrc is called without a filename
|
||
+ argument (and therefore is reading the user's $HOME/.netrc file), it now
|
||
+ enforces the same security rules as typical ftp clients: the .netrc file must
|
||
+ be owned by the user that owns the process and must not be readable by any
|
||
+ other user.
|
||
+
|
||
+- Issue #17324: Fix http.server's request handling case on trailing '/'. Patch
|
||
+ contributed by Vajrasky Kok.
|
||
+
|
||
+- Issue #19018: The heapq.merge() function no longer suppresses IndexError
|
||
+ in the underlying iterables.
|
||
+
|
||
+- Issue #18784: The uuid module no more attempts to load libc via ctypes.CDLL,
|
||
+ if all necessary functions are already found in libuuid.
|
||
+ Patch by Evgeny Sologubov.
|
||
+
|
||
+- Issue #14971: unittest test discovery no longer gets confused when a function
|
||
+ has a different __name__ than its name in the TestCase class dictionary.
|
||
+
|
||
+- Issue #18672: Fixed format specifiers for Py_ssize_t in debugging output in
|
||
+ the _sre module.
|
||
+
|
||
+- Issue #18830: inspect.getclasstree() no more produces duplicated entries even
|
||
+ when input list contains duplicates.
|
||
+
|
||
+- Issue #18909: Fix _tkinter.tkapp.interpaddr() on Windows 64-bit, don't cast
|
||
+ 64-bit pointer to long (32 bits).
|
||
+
|
||
+- Issue #18876: The FileIO.mode attribute now better reflects the actual mode
|
||
+ under which the file was opened. Patch by Erik Bray.
|
||
+
|
||
+- Issue #18851: Avoid a double close of subprocess pipes when the child
|
||
+ process fails starting.
|
||
+
|
||
+- Issue #18418: After fork(), reinit all threads states, not only active ones.
|
||
+ Patch by A. Jesse Jiryu Davis.
|
||
+
|
||
+- Issue #11973: Fix a problem in kevent. The flags and fflags fields are now
|
||
+ properly handled as unsigned.
|
||
+
|
||
+- Issue #16809: Fixed some tkinter incompabilities with Tcl/Tk 8.6.
|
||
+
|
||
+- Issue #16809: Tkinter's splitlist() and split() methods now accept Tcl_Obj
|
||
+ argument.
|
||
+
|
||
+- Issue #17119: Fixed integer overflows when processing large Unicode strings
|
||
+ and tuples in the tkinter module.
|
||
+
|
||
+- Issue #15233: Python now guarantees that callables registered with the atexit
|
||
+ module will be called in a deterministic order.
|
||
+
|
||
+- Issue #18747: Re-seed OpenSSL's pseudo-random number generator after fork.
|
||
+ A pthread_atfork() parent handler is used to seed the PRNG with pid, time
|
||
+ and some stack data.
|
||
+
|
||
+- Issue #8865: Concurrent invocation of select.poll.poll() now raises a
|
||
+ RuntimeError exception. Patch by Christian Schubert.
|
||
+
|
||
+- Issue #13461: Fix a crash in the TextIOWrapper.tell method on 64-bit
|
||
+ platforms. Patch by Yogesh Chaudhari.
|
||
+
|
||
+- Issue #18777: The ssl module now uses the new CRYPTO_THREADID API of
|
||
+ OpenSSL 1.0.0+ instead of the deprecated CRYPTO id callback function.
|
||
+
|
||
+- Issue #18768: Correct doc string of RAND_edg(). Patch by Vajrasky Kok.
|
||
+
|
||
+- Issue #18178: Fix ctypes on BSD. dlmalloc.c was compiled twice which broke
|
||
+ malloc weak symbols.
|
||
+
|
||
+- Issue #18709: Fix CVE-2013-4238. The SSL module now handles NULL bytes
|
||
+ inside subjectAltName correctly. Formerly the module has used OpenSSL's
|
||
+ GENERAL_NAME_print() function to get the string represention of ASN.1
|
||
+ strings for ``rfc822Name`` (email), ``dNSName`` (DNS) and
|
||
+ ``uniformResourceIdentifier`` (URI).
|
||
+
|
||
+- Issue #18756: Improve error reporting in os.urandom() when the failure
|
||
+ is due to something else than /dev/urandom not existing (for example,
|
||
+ exhausting the file descriptor limit).
|
||
+
|
||
+- Fix tkinter regression introduced by the security fix in issue #16248.
|
||
+
|
||
+- Issue #18676: Change 'positive' to 'non-negative' in queue.py put and get
|
||
+ docstrings and ValueError messages. Patch by Zhongyue Luo
|
||
+
|
||
+- Issue #17998: Fix an internal error in regular expression engine.
|
||
+
|
||
+- Issue #17557: Fix os.getgroups() to work with the modified behavior of
|
||
+ getgroups(2) on OS X 10.8. Original patch by Mateusz Lenik.
|
||
+
|
||
+- Issue #18455: multiprocessing should not retry connect() with same socket.
|
||
+
|
||
+- Issue #18513: Fix behaviour of cmath.rect w.r.t. signed zeros on OS X 10.8 +
|
||
+ gcc.
|
||
+
|
||
+- Issue #18101: Tcl.split() now process Unicode strings nested in a tuple as it
|
||
+ do with byte strings.
|
||
+
|
||
+- Issue #18347: ElementTree's html serializer now preserves the case of
|
||
+ closing tags.
|
||
+
|
||
+- Issue #17261: Ensure multiprocessing's proxies use proper address.
|
||
+
|
||
+- Issue #17097: Make multiprocessing ignore EINTR.
|
||
+
|
||
+- Issue #18155: The csv module now correctly handles csv files that use
|
||
+ a delimiter character that has a special meaning in regexes, instead of
|
||
+ throwing an exception.
|
||
+
|
||
+- Issue #18135: ssl.SSLSocket.write() now raises an OverflowError if the input
|
||
+ string in longer than 2 gigabytes. The ssl module does not support partial
|
||
+ write.
|
||
+
|
||
+- Issue #18167: cgi.FieldStorage no longer fails to handle multipart/form-data
|
||
+ when \r\n appears at end of 65535 bytes without other newlines.
|
||
+
|
||
+- Issue #17403: urllib.parse.robotparser normalizes the urls before adding to
|
||
+ ruleline. This helps in handling certain types invalid urls in a conservative
|
||
+ manner. Patch contributed by Mher Movsisyan.
|
||
+
|
||
+- Implement inequality on weakref.WeakSet.
|
||
+
|
||
+- Issue #17981: Closed socket on error in SysLogHandler.
|
||
+
|
||
+- Issue #18015: Fix unpickling of 2.7.3 and 2.7.4 namedtuples.
|
||
+
|
||
+- Issue #17754: Make ctypes.util.find_library() independent of the locale.
|
||
+
|
||
+- Fix typos in the multiprocessing module.
|
||
+
|
||
+- Issue #17269: Workaround for socket.getaddrinfo crash on MacOS X
|
||
+ with port None or "0" and flags AI_NUMERICSERV.
|
||
+
|
||
+- Issue #18080: When building a C extension module on OS X, if the compiler
|
||
+ is overridden with the CC environment variable, use the new compiler as
|
||
+ the default for linking if LDSHARED is not also overridden. This restores
|
||
+ Distutils behavior introduced in 2.7.3 and inadvertently dropped in 2.7.4.
|
||
+
|
||
+- Issue #18071: C extension module builds on OS X could fail with TypeError
|
||
+ if the Xcode command line tools were not installed.
|
||
+
|
||
+- Issue #18113: Fixed a refcount leak in the curses.panel module's
|
||
+ set_userptr() method. Reported by Atsuo Ishimoto.
|
||
+
|
||
+- Issue #18849: Fixed a Windows-specific tempfile bug where collision with an
|
||
+ existing directory caused mkstemp and related APIs to fail instead of
|
||
+ retrying. Report and fix by Vlad Shcherbina.
|
||
+
|
||
+- Issue #19400: Prevent extension module build failures with Xcode 5 on OS X
|
||
+ 10.8+ when using a universal Python that included a PPC architecture,
|
||
+ such as with a python.org 32-bit-only binary installer.
|
||
+
|
||
+Tools/Demos
|
||
+-----------
|
||
+
|
||
+- Issue #18873: 2to3 and the findnocoding.py script now detect Python source
|
||
+ code encoding only in comment lines.
|
||
+
|
||
+- Issue #18817: Fix a resource warning in Lib/aifc.py demo.
|
||
+
|
||
+- Issue #18439: Make patchcheck work on Windows for ACKS, NEWS.
|
||
+
|
||
+- Issue #18448: Fix a typo in Demo/newmetaclasses/Eiffel.py.
|
||
+
|
||
+- Issue #12990: The "Python Launcher" on OSX could not launch python scripts
|
||
+ that have paths that include wide characters.
|
||
+
|
||
+Build
|
||
+-----
|
||
+
|
||
+- Issue #16067: Add description into MSI file to replace installer's temporary name.
|
||
+
|
||
+- Issue #18256: Compilation fix for recent AIX releases. Patch by
|
||
+ David Edelsohn.
|
||
+
|
||
+- Issue #18098: The deprecated OS X Build Applet.app fails to build on
|
||
+ OS X 10.8 systems because the Apple-deprecated QuickDraw headers have
|
||
+ been removed from Xcode 4. Skip building it in this case.
|
||
+
|
||
+- Issue #1584: Provide options to override default search paths for
|
||
+ Tcl and Tk when building _tkinter.
|
||
+
|
||
+- Issue #15663: Tcl/Tk 8.5.15 is now included with the OS X 10.6+
|
||
+ 64-bit/32-bit installer for 10.6+. It is no longer necessary
|
||
+ to install a third-party version of Tcl/Tk 8.5 to work around the
|
||
+ problems in the Apple-supplied Tcl/Tk 8.5 shipped in OS X 10.6
|
||
+ and later releases.
|
||
+
|
||
+- Issue #19019: Change the OS X installer build script to use CFLAGS instead
|
||
+ of OPT for special build options. By setting OPT, some compiler-specific
|
||
+ options like -fwrapv were overridden and thus not used, which could result
|
||
+ in broken interpreters when building with clang.
|
||
+
|
||
+IDLE
|
||
+----
|
||
+
|
||
+- Issue #18873: IDLE now detects Python source code encoding only in comment
|
||
+ lines.
|
||
+
|
||
+- Issue #18988: The "Tab" key now works when a word is already autocompleted.
|
||
+
|
||
+- Issue #18489: Add tests for SearchEngine. Original patch by Phil Webster.
|
||
+
|
||
+- Issue #18429: Format / Format Paragraph, now works when comment blocks
|
||
+ are selected. As with text blocks, this works best when the selection
|
||
+ only includes complete lines.
|
||
+
|
||
+- Issue #18226: Add docstrings and unittests for FormatParagraph.py.
|
||
+ Original patches by Todd Rovito and Phil Webster.
|
||
+
|
||
+- Issue #18279: Format - Strip trailing whitespace no longer marks a file as
|
||
+ changed when it has not been changed. This fix followed the addition of a
|
||
+ test file originally written by Phil Webster (the issue's main goal).
|
||
+
|
||
+- Issue #18539: Calltips now work for float default arguments.
|
||
+
|
||
+- Issue #7136: In the Idle File menu, "New Window" is renamed "New File".
|
||
+ Patch by Tal Einat, Roget Serwy, and Todd Rovito.
|
||
+
|
||
+- Issue #8515: Set __file__ when run file in IDLE.
|
||
+ Initial patch by Bruce Frederiksen.
|
||
+
|
||
+- Issue #5492: Avoid traceback when exiting IDLE caused by a race condition.
|
||
+
|
||
+- Issue #17511: Keep IDLE find dialog open after clicking "Find Next".
|
||
+ Original patch by Sarah K.
|
||
+
|
||
+- Issue #15392: Create a unittest framework for IDLE.
|
||
+ Preliminary patch by Rajagopalasarma Jayakrishnan
|
||
+ See Lib/idlelib/idle_test/README.txt for how to run Idle tests.
|
||
+
|
||
+- Issue #14146: Highlight source line while debugging on Windows.
|
||
+
|
||
+- Issue #17532: Always include Options menu for IDLE on OS X.
|
||
+ Patch by Guilherme Simões.
|
||
+
|
||
+Tests
|
||
+-----
|
||
+
|
||
+- Issue #18919: Added tests for the sunau module. Unified and extended tests
|
||
+ for audio modules: aifc, sunau and wave.
|
||
+
|
||
+- Issue #18792: Use "127.0.0.1" or "::1" instead of "localhost" as much as
|
||
+ possible, since "localhost" goes through a DNS lookup under recent Windows
|
||
+ versions.
|
||
+
|
||
+- Issue #18357: add tests for dictview set difference.
|
||
+ Patch by Fraser Tweedale.
|
||
+
|
||
+- Issue #11185: Fix test_wait4 under AIX. Patch by Sébastien Sablé.
|
||
+
|
||
+- Issue #18094: test_uuid no more reports skipped tests as passed.
|
||
+
|
||
+- Issue #11995: test_pydoc doesn't import all sys.path modules anymore.
|
||
+
|
||
+Documentation
|
||
+-------------
|
||
+
|
||
+- Issue #18758: Fixed and improved cross-references.
|
||
+
|
||
+- Issue #18718: datetime documentation contradictory on leap second support.
|
||
+
|
||
+- Issue #17701: Improving strftime documentation.
|
||
+
|
||
+- Issue #17844: Refactor a documentation of Python specific encodings.
|
||
+ Add links to encoders and decoders for binary-to-binary codecs.
|
||
+
|
||
+
|
||
What's New in Python 2.7.5?
|
||
===========================
|
||
|
||
diff --git a/README b/README
|
||
index 014028d..691b818 100644
|
||
--- a/README
|
||
+++ b/README
|
||
@@ -166,6 +166,11 @@ rebuilt. In this case, you may have to run make again to correctly
|
||
build your desired target. The interpreter executable is built in the
|
||
top level directory.
|
||
|
||
+If you need an optimized version of Python, you type "make profile-opt"
|
||
+in the top level directory. This will rebuild the interpreter executable
|
||
+using Profile Guided Optimization (PGO). For more details, see the
|
||
+section below.
|
||
+
|
||
Once you have built a Python interpreter, see the subsections below on
|
||
testing and installation. If you run into trouble, see the next
|
||
section.
|
||
@@ -178,6 +183,30 @@ guidance of the setup.py script, which is run by Make after the
|
||
interpreter has been built.
|
||
|
||
|
||
+Profile Guided Optimization
|
||
+---------------------------
|
||
+
|
||
+PGO takes advantage of recent versions of the GCC or Clang compilers.
|
||
+If ran, the "profile-opt" rule will do several steps.
|
||
+
|
||
+First, the entire Python directory is cleaned of temporary files that
|
||
+may resulted in a previous compilation.
|
||
+
|
||
+Then, an instrumented version of the interpreter is built, using suitable
|
||
+compiler flags for each flavour. Note that this is just an intermediary
|
||
+step and the binary resulted after this step is not good for real life
|
||
+workloads, as it has profiling instructions embedded inside.
|
||
+
|
||
+After this instrumented version of the interpreter is built, the Makefile
|
||
+will automatically run a training workload. This is necessary in order to
|
||
+profile the interpreter execution. Note also that any output, both stdout
|
||
+and stderr, that may appear at this step is supressed.
|
||
+
|
||
+Finally, the last step is to rebuild the interpreter, using the information
|
||
+collected in the previous one. The end result will be a the Python binary
|
||
+that is optimized and suitable for distribution or production installation.
|
||
+
|
||
+
|
||
Troubleshooting
|
||
---------------
|
||
|
||
diff --git a/configure b/configure
|
||
index 60a3335..aeb8570 100755
|
||
--- a/configure
|
||
+++ b/configure
|
||
@@ -658,6 +658,20 @@ LDSHARED
|
||
SO
|
||
LIBTOOL_CRUFT
|
||
OTHER_LIBTOOL_OPT
|
||
+LLVM_PROF_FOUND
|
||
+target_os
|
||
+target_vendor
|
||
+target_cpu
|
||
+target
|
||
+LLVM_PROFDATA
|
||
+LLVM_PROF_ERR
|
||
+LLVM_PROF_FILE
|
||
+LLVM_PROF_MERGER
|
||
+PGO_PROF_USE_FLAG
|
||
+PGO_PROF_GEN_FLAG
|
||
+LTOFLAGS
|
||
+DEF_MAKE_RULE
|
||
+DEF_MAKE_ALL_RULE
|
||
UNIVERSAL_ARCH_FLAGS
|
||
BASECFLAGS
|
||
OPT
|
||
@@ -786,6 +800,8 @@ with_suffix
|
||
enable_shared
|
||
enable_profiling
|
||
with_pydebug
|
||
+enable_optimizations
|
||
+with_lto
|
||
enable_toolbox_glue
|
||
with_libs
|
||
with_system_expat
|
||
@@ -1421,6 +1437,7 @@ _ACEOF
|
||
System types:
|
||
--build=BUILD configure for building on BUILD [guessed]
|
||
--host=HOST cross-compile to build programs to run on HOST [BUILD]
|
||
+ --target=TARGET configure for building compilers for TARGET [HOST]
|
||
_ACEOF
|
||
fi
|
||
|
||
@@ -1440,6 +1457,8 @@ Optional Features:
|
||
Build (MacOSX|Darwin) framework
|
||
--enable-shared disable/enable building shared python library
|
||
--enable-profiling enable C-level code profiling
|
||
+ --enable-optimizations Enable expensive optimizations (PGO, maybe LTO,
|
||
+ etc). Disabled by default.
|
||
--enable-toolbox-glue disable/enable MacOSX glue code for extensions
|
||
--enable-ipv6 Enable ipv6 (with ipv4) support
|
||
--disable-ipv6 Disable ipv6 support
|
||
@@ -1463,6 +1482,8 @@ Optional Packages:
|
||
compiler
|
||
--with-suffix=.exe set executable suffix
|
||
--with-pydebug build with Py_DEBUG defined
|
||
+ --with-lto Enable Link Time Optimization in PGO builds.
|
||
+ Disabled by default.
|
||
--with-libs='lib1 ...' link against additional libs
|
||
--with-system-expat build pyexpat module using an installed expat
|
||
library
|
||
@@ -6307,6 +6328,308 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
|
||
CFLAGS=$save_CFLAGS
|
||
fi
|
||
|
||
+
|
||
+# Enable optimization flags
|
||
+
|
||
+
|
||
+Py_OPT='false'
|
||
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for --enable-optimizations" >&5
|
||
+$as_echo_n "checking for --enable-optimizations... " >&6; }
|
||
+# Check whether --enable-optimizations was given.
|
||
+if test "${enable_optimizations+set}" = set; then :
|
||
+ enableval=$enable_optimizations;
|
||
+if test "$enableval" != no
|
||
+then
|
||
+ Py_OPT='true'
|
||
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
|
||
+$as_echo "yes" >&6; };
|
||
+else
|
||
+ Py_OPT='false'
|
||
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
|
||
+$as_echo "no" >&6; };
|
||
+fi
|
||
+else
|
||
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
|
||
+$as_echo "no" >&6; }
|
||
+fi
|
||
+
|
||
+if test "$Py_OPT" = 'true' ; then
|
||
+ case $ac_sys_system in
|
||
+ Darwin*)
|
||
+ # At least on macOS El Capitan, LTO does not work with PGO.
|
||
+ Py_LTO='false'
|
||
+ ;;
|
||
+ esac
|
||
+ Py_LTO='true'
|
||
+ DEF_MAKE_ALL_RULE="profile-opt"
|
||
+ REQUIRE_PGO="yes"
|
||
+ DEF_MAKE_RULE="build_all"
|
||
+else
|
||
+ DEF_MAKE_ALL_RULE="build_all"
|
||
+ REQUIRE_PGO="no"
|
||
+ DEF_MAKE_RULE="all"
|
||
+fi
|
||
+
|
||
+
|
||
+# Enable LTO flags
|
||
+
|
||
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for --with-lto" >&5
|
||
+$as_echo_n "checking for --with-lto... " >&6; }
|
||
+
|
||
+# Check whether --with-lto was given.
|
||
+if test "${with_lto+set}" = set; then :
|
||
+ withval=$with_lto;
|
||
+if test "$withval" != no
|
||
+then
|
||
+ Py_LTO='true'
|
||
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
|
||
+$as_echo "yes" >&6; };
|
||
+else
|
||
+ Py_LTO='false'
|
||
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
|
||
+$as_echo "no" >&6; };
|
||
+fi
|
||
+else
|
||
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
|
||
+$as_echo "no" >&6; }
|
||
+fi
|
||
+
|
||
+if test "$Py_LTO" = 'true' ; then
|
||
+ case $CC in
|
||
+ *clang*)
|
||
+ # Any changes made here should be reflected in the GCC+Darwin case below
|
||
+ LTOFLAGS="-flto"
|
||
+ ;;
|
||
+ *gcc*)
|
||
+ case $ac_sys_system in
|
||
+ Darwin*)
|
||
+ LTOFLAGS="-flto"
|
||
+ ;;
|
||
+ *)
|
||
+ LTOFLAGS="-flto -fuse-linker-plugin -ffat-lto-objects -flto-partition=none"
|
||
+ ;;
|
||
+ esac
|
||
+ ;;
|
||
+ esac
|
||
+fi
|
||
+
|
||
+
|
||
+# Enable PGO flags.
|
||
+
|
||
+# Make this work on systems where llvm tools are not installed with their
|
||
+# normal names in the default $PATH (ie: Ubuntu). They exist under the
|
||
+# non-suffixed name in their versioned llvm directory.
|
||
+llvm_bin_dir=''
|
||
+llvm_path="${PATH}"
|
||
+if test "${CC}" = "clang"
|
||
+then
|
||
+ clang_bin=`which clang`
|
||
+ # Some systems install clang elsewhere as a symlink to the real path
|
||
+ # which is where the related llvm tools are located.
|
||
+ if test -L "${clang_bin}"
|
||
+ then
|
||
+ clang_dir=`dirname "${clang_bin}"`
|
||
+ clang_bin=`readlink "${clang_bin}"`
|
||
+ llvm_bin_dir="${clang_dir}/"`dirname "${clang_bin}"`
|
||
+ llvm_path="${llvm_path}${PATH_SEPARATOR}${llvm_bin_dir}"
|
||
+ fi
|
||
+fi
|
||
+
|
||
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking target system type" >&5
|
||
+$as_echo_n "checking target system type... " >&6; }
|
||
+if ${ac_cv_target+:} false; then :
|
||
+ $as_echo_n "(cached) " >&6
|
||
+else
|
||
+ if test "x$target_alias" = x; then
|
||
+ ac_cv_target=$ac_cv_host
|
||
+else
|
||
+ ac_cv_target=`$SHELL "$ac_aux_dir/config.sub" $target_alias` ||
|
||
+ as_fn_error $? "$SHELL $ac_aux_dir/config.sub $target_alias failed" "$LINENO" 5
|
||
+fi
|
||
+
|
||
+fi
|
||
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_target" >&5
|
||
+$as_echo "$ac_cv_target" >&6; }
|
||
+case $ac_cv_target in
|
||
+*-*-*) ;;
|
||
+*) as_fn_error $? "invalid value of canonical target" "$LINENO" 5;;
|
||
+esac
|
||
+target=$ac_cv_target
|
||
+ac_save_IFS=$IFS; IFS='-'
|
||
+set x $ac_cv_target
|
||
+shift
|
||
+target_cpu=$1
|
||
+target_vendor=$2
|
||
+shift; shift
|
||
+# Remember, the first character of IFS is used to create $*,
|
||
+# except with old shells:
|
||
+target_os=$*
|
||
+IFS=$ac_save_IFS
|
||
+case $target_os in *\ *) target_os=`echo "$target_os" | sed 's/ /-/g'`;; esac
|
||
+
|
||
+
|
||
+# The aliases save the names the user supplied, while $host etc.
|
||
+# will get canonicalized.
|
||
+test -n "$target_alias" &&
|
||
+ test "$program_prefix$program_suffix$program_transform_name" = \
|
||
+ NONENONEs,x,x, &&
|
||
+ program_prefix=${target_alias}-
|
||
+# Extract the first word of "$target_alias-llvm-profdata", so it can be a program name with args.
|
||
+set dummy $target_alias-llvm-profdata; ac_word=$2
|
||
+
|
||
+
|
||
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
|
||
+$as_echo_n "checking for $ac_word... " >&6; }
|
||
+if ${ac_cv_path_LLVM_PROFDATA+:} false; then :
|
||
+ $as_echo_n "(cached) " >&6
|
||
+else
|
||
+ case $LLVM_PROFDATA in
|
||
+ [\\/]* | ?:[\\/]*)
|
||
+ ac_cv_path_LLVM_PROFDATA="$LLVM_PROFDATA" # Let the user override the test with a path.
|
||
+ ;;
|
||
+ *)
|
||
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
|
||
+for as_dir in ${llvm_path}
|
||
+do
|
||
+ IFS=$as_save_IFS
|
||
+ test -z "$as_dir" && as_dir=.
|
||
+ for ac_exec_ext in '' $ac_executable_extensions; do
|
||
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
|
||
+ ac_cv_path_LLVM_PROFDATA="$as_dir/$ac_word$ac_exec_ext"
|
||
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
|
||
+ break 2
|
||
+ fi
|
||
+done
|
||
+ done
|
||
+IFS=$as_save_IFS
|
||
+ ;;
|
||
+esac
|
||
+fi
|
||
+LLVM_PROFDATA=$ac_cv_path_LLVM_PROFDATA
|
||
+if test -n "$LLVM_PROFDATA"; then
|
||
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LLVM_PROFDATA" >&5
|
||
+$as_echo "$LLVM_PROFDATA" >&6; }
|
||
+else
|
||
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
|
||
+$as_echo "no" >&6; }
|
||
+fi
|
||
+
|
||
+
|
||
+if test -z "$ac_cv_path_LLVM_PROFDATA"; then
|
||
+ if test "$build" = "$target"; then
|
||
+ ac_pt_LLVM_PROFDATA=$LLVM_PROFDATA
|
||
+ # Extract the first word of "llvm-profdata", so it can be a program name with args.
|
||
+set dummy llvm-profdata; ac_word=$2
|
||
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
|
||
+$as_echo_n "checking for $ac_word... " >&6; }
|
||
+if ${ac_cv_path_ac_pt_LLVM_PROFDATA+:} false; then :
|
||
+ $as_echo_n "(cached) " >&6
|
||
+else
|
||
+ case $ac_pt_LLVM_PROFDATA in
|
||
+ [\\/]* | ?:[\\/]*)
|
||
+ ac_cv_path_ac_pt_LLVM_PROFDATA="$ac_pt_LLVM_PROFDATA" # Let the user override the test with a path.
|
||
+ ;;
|
||
+ *)
|
||
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
|
||
+for as_dir in ${llvm_path}
|
||
+do
|
||
+ IFS=$as_save_IFS
|
||
+ test -z "$as_dir" && as_dir=.
|
||
+ for ac_exec_ext in '' $ac_executable_extensions; do
|
||
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
|
||
+ ac_cv_path_ac_pt_LLVM_PROFDATA="$as_dir/$ac_word$ac_exec_ext"
|
||
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
|
||
+ break 2
|
||
+ fi
|
||
+done
|
||
+ done
|
||
+IFS=$as_save_IFS
|
||
+
|
||
+ test -z "$ac_cv_path_ac_pt_LLVM_PROFDATA" && ac_cv_path_ac_pt_LLVM_PROFDATA="''"
|
||
+ ;;
|
||
+esac
|
||
+fi
|
||
+ac_pt_LLVM_PROFDATA=$ac_cv_path_ac_pt_LLVM_PROFDATA
|
||
+if test -n "$ac_pt_LLVM_PROFDATA"; then
|
||
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_pt_LLVM_PROFDATA" >&5
|
||
+$as_echo "$ac_pt_LLVM_PROFDATA" >&6; }
|
||
+else
|
||
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
|
||
+$as_echo "no" >&6; }
|
||
+fi
|
||
+
|
||
+ LLVM_PROFDATA=$ac_pt_LLVM_PROFDATA
|
||
+ else
|
||
+ LLVM_PROFDATA="''"
|
||
+ fi
|
||
+else
|
||
+ LLVM_PROFDATA="$ac_cv_path_LLVM_PROFDATA"
|
||
+fi
|
||
+
|
||
+if test -n "${LLVM_PROFDATA}" -a -x "${LLVM_PROFDATA}"
|
||
+then
|
||
+ LLVM_PROF_FOUND="found"
|
||
+else
|
||
+ LLVM_PROF_FOUND="not-found"
|
||
+fi
|
||
+if test "$ac_sys_system" = "Darwin" -a "${LLVM_PROF_FOUND}" = "not-found"
|
||
+then
|
||
+ found_llvm_profdata=`/usr/bin/xcrun -find llvm-profdata 2>/dev/null`
|
||
+ if test -n "${found_llvm_profdata}"
|
||
+ then
|
||
+ # llvm-profdata isn't directly in $PATH in some cases.
|
||
+ # https://apple.stackexchange.com/questions/197053/
|
||
+ LLVM_PROFDATA='/usr/bin/xcrun llvm-profdata'
|
||
+ LLVM_PROF_FOUND=found
|
||
+ { $as_echo "$as_me:${as_lineno-$LINENO}: llvm-profdata found via xcrun: ${LLVM_PROFDATA}" >&5
|
||
+$as_echo "$as_me: llvm-profdata found via xcrun: ${LLVM_PROFDATA}" >&6;}
|
||
+ fi
|
||
+fi
|
||
+
|
||
+LLVM_PROF_ERR=no
|
||
+case $CC in
|
||
+ *clang*)
|
||
+ # Any changes made here should be reflected in the GCC+Darwin case below
|
||
+ PGO_PROF_GEN_FLAG="-fprofile-instr-generate"
|
||
+ PGO_PROF_USE_FLAG="-fprofile-instr-use=code.profclangd"
|
||
+ LLVM_PROF_MERGER="${LLVM_PROFDATA} merge -output=code.profclangd *.profclangr"
|
||
+ LLVM_PROF_FILE="LLVM_PROFILE_FILE=\"code-%p.profclangr\""
|
||
+ if test $LLVM_PROF_FOUND = not-found
|
||
+ then
|
||
+ LLVM_PROF_ERR=yes
|
||
+ if test "${REQUIRE_PGO}" = "yes"
|
||
+ then
|
||
+ as_fn_error $? "llvm-profdata is required for a --enable-optimizations build but could not be found." "$LINENO" 5
|
||
+ fi
|
||
+ fi
|
||
+ ;;
|
||
+ *gcc*)
|
||
+ case $ac_sys_system in
|
||
+ Darwin*)
|
||
+ PGO_PROF_GEN_FLAG="-fprofile-instr-generate"
|
||
+ PGO_PROF_USE_FLAG="-fprofile-instr-use=code.profclangd"
|
||
+ LLVM_PROF_MERGER="llvm-profdata merge -output=code.profclangd *.profclangr"
|
||
+ LLVM_PROF_FILE="LLVM_PROFILE_FILE=\"code-%p.profclangr\""
|
||
+ if test "${LLVM_PROF_FOUND}" = "not-found"
|
||
+ then
|
||
+ LLVM_PROF_ERR=yes
|
||
+ if test "${REQUIRE_PGO}" = "yes"
|
||
+ then
|
||
+ as_fn_error $? "llvm-profdata is required for a --enable-optimizations build but could not be found." "$LINENO" 5
|
||
+ fi
|
||
+ fi
|
||
+ ;;
|
||
+ *)
|
||
+ PGO_PROF_GEN_FLAG="-fprofile-generate"
|
||
+ PGO_PROF_USE_FLAG="-fprofile-use -fprofile-correction"
|
||
+ LLVM_PROF_MERGER="true"
|
||
+ LLVM_PROF_FILE=""
|
||
+ ;;
|
||
+ esac
|
||
+ ;;
|
||
+esac
|
||
+
|
||
+
|
||
# On some compilers, pthreads are available without further options
|
||
# (e.g. MacOS X). On some of these systems, the compiler will not
|
||
# complain if unaccepted options are passed (e.g. gcc on Mac OS X).
|
||
@@ -14613,7 +14936,7 @@ for dir in $SRCDIRS; do
|
||
fi
|
||
done
|
||
|
||
- BEGIN_COMPUTED_GOTO
|
||
+# BEGIN_COMPUTED_GOTO
|
||
# Check for --with-computed-gotos
|
||
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for --with-computed-gotos" >&5
|
||
$as_echo_n "checking for --with-computed-gotos... " >&6; }
|
||
@@ -16031,3 +16354,12 @@ $as_echo "$as_me: WARNING:
|
||
esac
|
||
|
||
mv config.c Modules
|
||
+
|
||
+if test "$Py_OPT" = 'false' -a "$Py_DEBUG" != 'true'; then
|
||
+ echo "" >&6
|
||
+ echo "" >&6
|
||
+ echo "If you want a release build with all optimizations active (LTO, PGO, etc),"
|
||
+ echo "please run ./configure --enable-optimizations" >&6
|
||
+ echo "" >&6
|
||
+ echo "" >&6
|
||
+fi
|
||
diff --git a/configure.ac b/configure.ac
|
||
index 74bb514..040fc69 100644
|
||
--- a/configure.ac
|
||
+++ b/configure.ac
|
||
@@ -1347,6 +1347,165 @@ then
|
||
CFLAGS=$save_CFLAGS
|
||
fi
|
||
|
||
+
|
||
+# Enable optimization flags
|
||
+AC_SUBST(DEF_MAKE_ALL_RULE)
|
||
+AC_SUBST(DEF_MAKE_RULE)
|
||
+Py_OPT='false'
|
||
+AC_MSG_CHECKING(for --enable-optimizations)
|
||
+AC_ARG_ENABLE(optimizations, AS_HELP_STRING([--enable-optimizations], [Enable expensive optimizations (PGO, maybe LTO, etc). Disabled by default.]),
|
||
+[
|
||
+if test "$enableval" != no
|
||
+then
|
||
+ Py_OPT='true'
|
||
+ AC_MSG_RESULT(yes);
|
||
+else
|
||
+ Py_OPT='false'
|
||
+ AC_MSG_RESULT(no);
|
||
+fi],
|
||
+[AC_MSG_RESULT(no)])
|
||
+if test "$Py_OPT" = 'true' ; then
|
||
+ case $ac_sys_system in
|
||
+ Darwin*)
|
||
+ # At least on macOS El Capitan, LTO does not work with PGO.
|
||
+ Py_LTO='false'
|
||
+ ;;
|
||
+ esac
|
||
+ Py_LTO='true'
|
||
+ DEF_MAKE_ALL_RULE="profile-opt"
|
||
+ REQUIRE_PGO="yes"
|
||
+ DEF_MAKE_RULE="build_all"
|
||
+else
|
||
+ DEF_MAKE_ALL_RULE="build_all"
|
||
+ REQUIRE_PGO="no"
|
||
+ DEF_MAKE_RULE="all"
|
||
+fi
|
||
+
|
||
+
|
||
+# Enable LTO flags
|
||
+AC_SUBST(LTOFLAGS)
|
||
+AC_MSG_CHECKING(for --with-lto)
|
||
+AC_ARG_WITH(lto, AS_HELP_STRING([--with-lto], [Enable Link Time Optimization in PGO builds. Disabled by default.]),
|
||
+[
|
||
+if test "$withval" != no
|
||
+then
|
||
+ Py_LTO='true'
|
||
+ AC_MSG_RESULT(yes);
|
||
+else
|
||
+ Py_LTO='false'
|
||
+ AC_MSG_RESULT(no);
|
||
+fi],
|
||
+[AC_MSG_RESULT(no)])
|
||
+if test "$Py_LTO" = 'true' ; then
|
||
+ case $CC in
|
||
+ *clang*)
|
||
+ # Any changes made here should be reflected in the GCC+Darwin case below
|
||
+ LTOFLAGS="-flto"
|
||
+ ;;
|
||
+ *gcc*)
|
||
+ case $ac_sys_system in
|
||
+ Darwin*)
|
||
+ LTOFLAGS="-flto"
|
||
+ ;;
|
||
+ *)
|
||
+ LTOFLAGS="-flto -fuse-linker-plugin -ffat-lto-objects -flto-partition=none"
|
||
+ ;;
|
||
+ esac
|
||
+ ;;
|
||
+ esac
|
||
+fi
|
||
+
|
||
+
|
||
+# Enable PGO flags.
|
||
+AC_SUBST(PGO_PROF_GEN_FLAG)
|
||
+AC_SUBST(PGO_PROF_USE_FLAG)
|
||
+AC_SUBST(LLVM_PROF_MERGER)
|
||
+AC_SUBST(LLVM_PROF_FILE)
|
||
+AC_SUBST(LLVM_PROF_ERR)
|
||
+# Make this work on systems where llvm tools are not installed with their
|
||
+# normal names in the default $PATH (ie: Ubuntu). They exist under the
|
||
+# non-suffixed name in their versioned llvm directory.
|
||
+llvm_bin_dir=''
|
||
+llvm_path="${PATH}"
|
||
+if test "${CC}" = "clang"
|
||
+then
|
||
+ clang_bin=`which clang`
|
||
+ # Some systems install clang elsewhere as a symlink to the real path
|
||
+ # which is where the related llvm tools are located.
|
||
+ if test -L "${clang_bin}"
|
||
+ then
|
||
+ clang_dir=`dirname "${clang_bin}"`
|
||
+ clang_bin=`readlink "${clang_bin}"`
|
||
+ llvm_bin_dir="${clang_dir}/"`dirname "${clang_bin}"`
|
||
+ llvm_path="${llvm_path}${PATH_SEPARATOR}${llvm_bin_dir}"
|
||
+ fi
|
||
+fi
|
||
+AC_SUBST(LLVM_PROFDATA)
|
||
+AC_PATH_TARGET_TOOL(LLVM_PROFDATA, llvm-profdata, '', ${llvm_path})
|
||
+AC_SUBST(LLVM_PROF_FOUND)
|
||
+if test -n "${LLVM_PROFDATA}" -a -x "${LLVM_PROFDATA}"
|
||
+then
|
||
+ LLVM_PROF_FOUND="found"
|
||
+else
|
||
+ LLVM_PROF_FOUND="not-found"
|
||
+fi
|
||
+if test "$ac_sys_system" = "Darwin" -a "${LLVM_PROF_FOUND}" = "not-found"
|
||
+then
|
||
+ found_llvm_profdata=`/usr/bin/xcrun -find llvm-profdata 2>/dev/null`
|
||
+ if test -n "${found_llvm_profdata}"
|
||
+ then
|
||
+ # llvm-profdata isn't directly in $PATH in some cases.
|
||
+ # https://apple.stackexchange.com/questions/197053/
|
||
+ LLVM_PROFDATA='/usr/bin/xcrun llvm-profdata'
|
||
+ LLVM_PROF_FOUND=found
|
||
+ AC_MSG_NOTICE([llvm-profdata found via xcrun: ${LLVM_PROFDATA}])
|
||
+ fi
|
||
+fi
|
||
+
|
||
+LLVM_PROF_ERR=no
|
||
+case $CC in
|
||
+ *clang*)
|
||
+ # Any changes made here should be reflected in the GCC+Darwin case below
|
||
+ PGO_PROF_GEN_FLAG="-fprofile-instr-generate"
|
||
+ PGO_PROF_USE_FLAG="-fprofile-instr-use=code.profclangd"
|
||
+ LLVM_PROF_MERGER="${LLVM_PROFDATA} merge -output=code.profclangd *.profclangr"
|
||
+ LLVM_PROF_FILE="LLVM_PROFILE_FILE=\"code-%p.profclangr\""
|
||
+ if test $LLVM_PROF_FOUND = not-found
|
||
+ then
|
||
+ LLVM_PROF_ERR=yes
|
||
+ if test "${REQUIRE_PGO}" = "yes"
|
||
+ then
|
||
+ AC_MSG_ERROR([llvm-profdata is required for a --enable-optimizations build but could not be found.])
|
||
+ fi
|
||
+ fi
|
||
+ ;;
|
||
+ *gcc*)
|
||
+ case $ac_sys_system in
|
||
+ Darwin*)
|
||
+ PGO_PROF_GEN_FLAG="-fprofile-instr-generate"
|
||
+ PGO_PROF_USE_FLAG="-fprofile-instr-use=code.profclangd"
|
||
+ LLVM_PROF_MERGER="${LLVM_PROFDATA} merge -output=code.profclangd *.profclangr"
|
||
+ LLVM_PROF_FILE="LLVM_PROFILE_FILE=\"code-%p.profclangr\""
|
||
+ if test "${LLVM_PROF_FOUND}" = "not-found"
|
||
+ then
|
||
+ LLVM_PROF_ERR=yes
|
||
+ if test "${REQUIRE_PGO}" = "yes"
|
||
+ then
|
||
+ AC_MSG_ERROR([llvm-profdata is required for a --enable-optimizations build but could not be found.])
|
||
+ fi
|
||
+ fi
|
||
+ ;;
|
||
+ *)
|
||
+ PGO_PROF_GEN_FLAG="-fprofile-generate"
|
||
+ PGO_PROF_USE_FLAG="-fprofile-use -fprofile-correction"
|
||
+ LLVM_PROF_MERGER="true"
|
||
+ LLVM_PROF_FILE=""
|
||
+ ;;
|
||
+ esac
|
||
+ ;;
|
||
+esac
|
||
+
|
||
+
|
||
# On some compilers, pthreads are available without further options
|
||
# (e.g. MacOS X). On some of these systems, the compiler will not
|
||
# complain if unaccepted options are passed (e.g. gcc on Mac OS X).
|
||
@@ -4648,3 +4807,12 @@ BeOS)
|
||
esac
|
||
|
||
mv config.c Modules
|
||
+
|
||
+if test "$Py_OPT" = 'false' -a "$Py_DEBUG" != 'true'; then
|
||
+ echo "" >&AS_MESSAGE_FD
|
||
+ echo "" >&AS_MESSAGE_FD
|
||
+ echo "If you want a release build with all optimizations active (LTO, PGO, etc),"
|
||
+ echo "please run ./configure --enable-optimizations" >&AS_MESSAGE_FD
|
||
+ echo "" >&AS_MESSAGE_FD
|
||
+ echo "" >&AS_MESSAGE_FD
|
||
+fi
|
||
--
|
||
1.8.3.1
|
||
|