diff --git a/wsme/tests/test_restjson.py b/wsme/tests/test_restjson.py
index fa3afb6..bdc2091 100644
--- a/wsme/tests/test_restjson.py
+++ b/wsme/tests/test_restjson.py
@@ -72,7 +72,7 @@ def prepare_result(value, datatype):
         return value
     if datatype == wsme.types.bytes:
         return value.encode('ascii')
-    if type(value) != datatype:
+    if type(value) is not datatype:
         print(type(value), datatype)
         return datatype(value)
     return value
diff --git a/wsme/tests/test_restxml.py b/wsme/tests/test_restxml.py
index 7bea454..40db1e9 100644
--- a/wsme/tests/test_restxml.py
+++ b/wsme/tests/test_restxml.py
@@ -45,7 +45,7 @@ def dumpxml(key, obj, datatype=None):
                 continue
             o = obj[name]
             el.append(dumpxml(name, o, attr.datatype))
-    elif type(obj) == dict:
+    elif type(obj) is dict:
         for name, value in obj.items():
             el.append(dumpxml(name, value))
     print(obj, datatype, et.tostring(el))
diff --git a/wsmeext/sphinxext.py b/wsmeext/sphinxext.py
index 2463956..749fd3a 100644
--- a/wsmeext/sphinxext.py
+++ b/wsmeext/sphinxext.py
@@ -191,7 +191,7 @@ class TypeDocumenter(autodoc.ClassDocumenter):
 
     option_spec = dict(
         autodoc.ClassDocumenter.option_spec,
-        **{'protocols': lambda l: [v.strip() for v in l.split(',')],
+        **{'protocols': lambda line: [v.strip() for v in line.split(',')],
            'samples-slot': check_samples_slot,
            })