lib/of_config: fix pep8

Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>

1 files changed, 3 insertions, 3 deletions

diff --git a/ryu/lib/of_config/base.py b/ryu/lib/of_config/base.py
index 6495924b..c657b109 100644
--- a/ryu/lib/of_config/base.py
+++ b/ryu/lib/of_config/base.py
@@ -60,7 +60,7 @@ class _Base(stringify.StringifyMixin):
             k = _pythonify(e.name)
             try:
                 v = kwargs.pop(k)
-                assert not e.name in kwargs
+                assert e.name not in kwargs
             except KeyError:
                 k = e.name
                 try:
@@ -111,7 +111,7 @@ class _Base(stringify.StringifyMixin):
     @classmethod
     def from_et(cls, et):
         def convert(v):
-            if not e.cls is None:
+            if e.cls is not None:
                 return e.cls.from_et(v)
             return v
 
@@ -130,7 +130,7 @@ class _Base(stringify.StringifyMixin):
                 assert e.is_list
                 v = map(convert, v)
             k = _pythonify(e.name)
-            assert not k in kwargs
+            assert k not in kwargs
             kwargs[k] = v
         return cls(**kwargs)