Merged milmazz/E712

tox.ini

@@ -32,12 +32,13 @@ commands =
 # E302 expected 2 blank lines
 # E303 too many blank lines
 # E501 line too long
+# E711 comparison to None should be 'if cond is not None:'
 # F401 imported but unused
 # F403 unable to detect undefined names
 # F821 undefined name
 # F841 local variable is assigned to but never used
 # F999 syntax error in doctest
 # W291 trailing whitespace
 show-source = True
-ignore = E126,E128,E231,E261,E301,E302,E303,E501,E711,E712,F401,F403,F821,F841,F999,W291,W391,W601
+ignore = E126,E128,E231,E251,E261,E301,E302,E303,E501,E711,E712,F401,F403,F821,F841,F999,W291,W391,W601
 exclude = .venv,.git,.tox,dist,doc,build,*egg,*shortypython*