Fixed Python 2/3 issues and flake syntax issues

graphene/pyutils/compat.py

@@ -1,4 +1,5 @@
 from __future__ import absolute_import
+import six
 
 try:
     from enum import Enum
@@ -9,3 +10,10 @@ try:
     from inspect import signature
 except ImportError:
     from .signature import signature
+
+if six.PY2:
+    def func_name(func):
+        return func.func_name
+else:
+    def func_name(func):
+        return func.__name__

graphene/types/context.py

@@ -1,4 +1,4 @@
 class Context(object):
     def __init__(self, **params):
         for key, value in params.items():
-            setattr(self,key, value)
+            setattr(self, key, value)

graphene/types/tests/test_abstracttype.py

@@ -3,8 +3,8 @@ import pytest
 from ..objecttype import ObjectType
 from ..unmountedtype import UnmountedType
 from ..abstracttype import AbstractType
+from .. import abstracttype
 from ..field import Field
-from ...utils import deprecated
 
 
 class MyType(ObjectType):
@@ -18,12 +18,12 @@ class MyScalar(UnmountedType):
 
 
 def test_abstract_objecttype_warn_deprecation(mocker):
-    mocker.patch.object(deprecated, 'warn_deprecation')
+    mocker.patch.object(abstracttype, 'warn_deprecation')
 
     class MyAbstractType(AbstractType):
         field1 = MyScalar()
 
-    deprecated.warn_deprecation.assert_called_once()
+    abstracttype.warn_deprecation.assert_called_once()
 
 
 def test_generate_objecttype_inherit_abstracttype():

graphene/utils/annotate.py

@@ -1,6 +1,5 @@
 import six
-from functools import wraps
+from ..pyutils.compat import signature, func_name
-from ..pyutils.compat import signature
 
 from .deprecated import warn_deprecation
 
@@ -25,7 +24,7 @@ def annotate(_func=None, _trigger_warning=True, **annotations):
             'The key {key} is not a function parameter in the function "{func_name}".'
         ).format(
             key=key,
-            func_name=_func.func_name
+            func_name=func_name(_func)
         )
 
     func_annotations = getattr(_func, '__annotations__', None)

graphene/utils/resolve_only_args.py

@@ -1,5 +1,4 @@
 from six import PY2
-from functools import wraps
 from .annotate import annotate
 from .deprecated import deprecated
 
@@ -11,9 +10,11 @@ if PY2:
 else:
     deprecation_reason = (
         'The decorator @resolve_only_args is deprecated.\n'
-        'Please use Python 3 type annotations instead. Read more: https://docs.python.org/3/library/typing.html'
+        'Please use Python 3 type annotations instead. Read more: '
+        'https://docs.python.org/3/library/typing.html'
     )
 
+
 @deprecated(deprecation_reason)
 def resolve_only_args(func):
     return annotate(func)