Fix pep8 errors under new flake8

Change-Id: Iab6df427ddb91d1659e3206f6ef6edc6e6389fbe

cafe/common/unicode.py

@@ -205,6 +205,7 @@ class BLOCK_NAMES(object):
     supplementary_private_use_area_a = "Supplementary Private Use Area-A"
     supplementary_private_use_area_b = "Supplementary Private Use Area-B"
 
+
 _unicode_planes = (
     (0x0, 0xffff, PLANE_NAMES.basic_multilingual_plane),
     (0x10000, 0x1ffff, PLANE_NAMES.supplementary_multilingual_plane),

cafe/drivers/behave/runner.py

@@ -107,5 +107,6 @@ def print_mug(base_dir):
     print(brew)
     print("-" * len(brew))
 
+
 if __name__ == '__main__':
     entry_point()

cafe/drivers/pyvows/runner.py

@@ -105,5 +105,6 @@ def print_mug(base_dir):
     print(brew)
     print("-" * len(brew))
 
+
 if __name__ == '__main__':
     entry_point()

cafe/engine/models/data_interfaces.py

@@ -68,6 +68,7 @@ def _get_path_from_env(os_env_var):
             " environment variable.".format(os_env_var))
         raise exception
 
+
 # Standard format to for flat key/value data sources
 CONFIG_KEY = 'CAFE_{section_name}_{key}'
 

cafe/plugins/http/setup.py

@@ -29,6 +29,7 @@ class Tox(TestCommand):
         errno = tox.cmdline(self.test_args)
         sys.exit(errno)
 
+
 setup(
     name='cafe_http_plugin',
     version='0.0.1',

cafe/plugins/rsyslog/setup.py

@@ -29,6 +29,7 @@ class Tox(TestCommand):
         errno = tox.cmdline(self.test_args)
         sys.exit(errno)
 
+
 setup(
     name='cafe_rsyslog_plugin',
     version='0.0.1',

cafe/plugins/soap/setup.py

@@ -29,6 +29,7 @@ class Tox(TestCommand):
         errno = tox.cmdline(self.test_args)
         sys.exit(errno)
 
+
 setup(
     name='cafe_soap_plugin',
     version='0.0.1',

setup.py

@@ -36,6 +36,7 @@ class Tox(TestCommand):
         errno = tox.cmdline(self.test_args)
         sys.exit(errno)
 
+
 # Package the plugin cache as package data
 plugins = []
 dir_path = os.path.join('cafe', 'plugins')