Improved syntax. Added autolinter. Added automatic flake8 checker in tests. Fixed #17

.travis.yml

@@ -13,6 +13,6 @@ install:
 - python setup.py develop
 script:
 - py.test --cov=graphene
-# - flake8
+- flake8
 after_success:
 - coveralls

bin/autolinter

@@ -0,0 +1,4 @@
+#!/bin/bash
+
+autoflake ./ -r  --remove-unused-variables --remove-all-unused-imports --in-place
+isort -rc .

examples/starwars/schema.py

@@ -1,8 +1,8 @@
-from graphql.core.type import GraphQLEnumValue
 import graphene
 from graphene import resolve_only_args
+from graphql.core.type import GraphQLEnumValue
 
-from .data import getHero, getHuman, getCharacter, getDroid
+from .data import getCharacter, getDroid, getHero, getHuman
 
 Episode = graphene.Enum('Episode', dict(
     NEWHOPE=GraphQLEnumValue(4),

examples/starwars/tests/test_query.py

@@ -1,9 +1,10 @@
-from ..schema import Schema, Query
-from graphql.core import graphql
+
 from ..data import setup
+from ..schema import Schema
 
 setup()
 
+
 def test_hero_name_query():
     query = '''
         query HeroNameQuery {

examples/starwars_django/data.py

@@ -1,4 +1,4 @@
-from .models import Ship, Faction, Character
+from .models import Character, Faction, Ship
 
 
 def initialize():

examples/starwars_django/models.py

@@ -1,4 +1,5 @@
 from __future__ import absolute_import
+
 from django.db import models
 
 

examples/starwars_django/schema.py

@@ -1,24 +1,18 @@
 import graphene
-from graphene import resolve_only_args, relay
-from graphene.contrib.django import (
-    DjangoObjectType,
-    DjangoNode
-)
-from .models import (
-    Ship as ShipModel, Faction as FactionModel, Character as CharacterModel)
-from .data import (
-    get_faction,
-    get_ship,
-    get_ships,
-    get_rebels,
-    get_empire,
-    create_ship
-)
+from graphene import relay, resolve_only_args
+from graphene.contrib.django import DjangoNode, DjangoObjectType
+
+from .data import (create_ship, get_empire, get_faction, get_rebels, get_ship,
+                   get_ships)
+from .models import Character as CharacterModel
+from .models import Faction as FactionModel
+from .models import Ship as ShipModel
 
 schema = graphene.Schema(name='Starwars Django Relay Schema')
 
 
 class Ship(DjangoNode):
+
     class Meta:
         model = ShipModel
 
@@ -29,11 +23,13 @@ class Ship(DjangoNode):
 
 @schema.register
 class Character(DjangoObjectType):
+
     class Meta:
         model = CharacterModel
 
 
 class Faction(DjangoNode):
+
     class Meta:
         model = FactionModel
 
@@ -43,6 +39,7 @@ class Faction(DjangoNode):
 
 
 class IntroduceShip(relay.ClientIDMutation):
+
     class Input:
         ship_name = graphene.StringField(required=True)
         faction_id = graphene.StringField(required=True)

examples/starwars_django/tests/test_connections.py

@@ -1,9 +1,7 @@
 import pytest
-from graphql.core import graphql
 
-from ..models import *
-from ..schema import schema
 from ..data import initialize
+from ..schema import schema
 
 pytestmark = pytest.mark.django_db
 

examples/starwars_django/tests/test_mutation.py

@@ -1,6 +1,7 @@
 import pytest
-from ..schema import schema
+
 from ..data import initialize
+from ..schema import schema
 
 pytestmark = pytest.mark.django_db
 

examples/starwars_django/tests/test_objectidentification.py

@@ -1,8 +1,6 @@
 import pytest
-from pytest import raises
-from graphql.core import graphql
-from ..data import initialize
 
+from ..data import initialize
 from ..schema import schema
 
 pytestmark = pytest.mark.django_db

examples/starwars_relay/schema.py

@@ -1,13 +1,7 @@
 import graphene
-from graphene import resolve_only_args, relay
+from graphene import relay, resolve_only_args
 
-from .data import (
-    get_faction,
-    get_ship,
-    get_rebels,
-    get_empire,
-    create_ship,
-)
+from .data import create_ship, get_empire, get_faction, get_rebels, get_ship
 
 schema = graphene.Schema(name='Starwars Relay Schema')
 
@@ -38,6 +32,7 @@ class Faction(relay.Node):
 
 
 class IntroduceShip(relay.ClientIDMutation):
+
     class Input:
         ship_name = graphene.StringField(required=True)
         faction_id = graphene.StringField(required=True)

examples/starwars_relay/tests/test_connections.py

@@ -1,5 +1,5 @@
-from ..schema import schema
 from ..data import setup
+from ..schema import schema
 
 setup()
 

examples/starwars_relay/tests/test_mutation.py

@@ -1,5 +1,5 @@
-from ..schema import schema
 from ..data import setup
+from ..schema import schema
 
 setup()
 

examples/starwars_relay/tests/test_objectidentification.py

@@ -1,5 +1,5 @@
-from ..schema import schema
 from ..data import setup
+from ..schema import schema
 
 setup()
 

graphene/contrib/django/converter.py

@@ -1,15 +1,10 @@
-from singledispatch import singledispatch
 from django.db import models
+from singledispatch import singledispatch
 
-from graphene.core.fields import (
-    StringField,
-    IDField,
-    IntField,
-    BooleanField,
-    FloatField,
-    ListField
-)
-from graphene.contrib.django.fields import ConnectionOrListField, DjangoModelField
+from graphene.contrib.django.fields import (ConnectionOrListField,
+                                            DjangoModelField)
+from graphene.core.fields import (BooleanField, FloatField, IDField, IntField,
+                                  StringField)
 
 try:
     UUIDField = models.UUIDField
@@ -32,12 +27,12 @@ def convert_django_field(field):
 @convert_django_field.register(models.SlugField)
 @convert_django_field.register(models.URLField)
 @convert_django_field.register(UUIDField)
-def _(field):
+def convert_field_to_string(field):
     return StringField(description=field.help_text)
 
 
 @convert_django_field.register(models.AutoField)
-def _(field):
+def convert_field_to_id(field):
     return IDField(description=field.help_text)
 
 
@@ -46,34 +41,34 @@ def _(field):
 @convert_django_field.register(models.SmallIntegerField)
 @convert_django_field.register(models.BigIntegerField)
 @convert_django_field.register(models.IntegerField)
-def _(field):
+def convert_field_to_int(field):
     return IntField(description=field.help_text)
 
 
 @convert_django_field.register(models.BooleanField)
-def _(field):
+def convert_field_to_boolean(field):
     return BooleanField(description=field.help_text, required=True)
 
 
 @convert_django_field.register(models.NullBooleanField)
-def _(field):
+def convert_field_to_nullboolean(field):
     return BooleanField(description=field.help_text)
 
 
 @convert_django_field.register(models.DecimalField)
 @convert_django_field.register(models.FloatField)
-def _(field):
+def convert_field_to_float(field):
     return FloatField(description=field.help_text)
 
 
 @convert_django_field.register(models.ManyToManyField)
 @convert_django_field.register(models.ManyToOneRel)
-def _(field):
+def convert_field_to_list_or_connection(field):
     model_field = DjangoModelField(field.related_model)
     return ConnectionOrListField(model_field)
 
 
 @convert_django_field.register(models.OneToOneField)
 @convert_django_field.register(models.ForeignKey)
-def _(field):
+def convert_field_to_djangomodel(field):
     return DjangoModelField(field.related_model, description=field.help_text)

graphene/contrib/django/fields.py

@@ -1,21 +1,18 @@
-from graphene.core.fields import (
-    ListField
-)
 from graphene import relay
-
-from graphene.core.fields import Field, LazyField
-
-from graphene.relay.utils import is_node
 from graphene.contrib.django.utils import get_type_for_model, lazy_map
+from graphene.core.fields import Field, LazyField, ListField
+from graphene.relay.utils import is_node
 
 
 class DjangoConnectionField(relay.ConnectionField):
+
     def wrap_resolved(self, value, instance, args, info):
         schema = info.schema.graphene_schema
         return lazy_map(value, self.get_object_type(schema))
 
 
 class LazyListField(ListField):
+
     def resolve(self, instance, args, info):
         schema = info.schema.graphene_schema
         resolved = super(LazyListField, self).resolve(instance, args, info)
@@ -23,6 +20,7 @@ class LazyListField(ListField):
 
 
 class ConnectionOrListField(LazyField):
+
     def get_field(self, schema):
         model_field = self.field_type
         field_object_type = model_field.get_object_type(schema)
@@ -35,6 +33,7 @@ class ConnectionOrListField(LazyField):
 
 
 class DjangoModelField(Field):
+
     def __init__(self, model, *args, **kwargs):
         super(DjangoModelField, self).__init__(None, *args, **kwargs)
         self.model = model

graphene/contrib/django/options.py

@@ -1,9 +1,10 @@
 import inspect
+
 from django.db import models
 
 from graphene.core.options import Options
-from graphene.relay.utils import is_node
 from graphene.relay.types import Node
+from graphene.relay.utils import is_node
 
 VALID_ATTRS = ('model', 'only_fields', 'exclude_fields')
 

graphene/contrib/django/types.py

@@ -1,12 +1,11 @@
 import six
 
-from graphene.core.types import ObjectTypeMeta, BaseObjectType
-from graphene.contrib.django.options import DjangoOptions
 from graphene.contrib.django.converter import convert_django_field
+from graphene.contrib.django.options import DjangoOptions
 from graphene.contrib.django.utils import get_reverse_fields
-
-from graphene.relay.types import BaseNode
+from graphene.core.types import BaseObjectType, ObjectTypeMeta
 from graphene.relay.fields import GlobalIDField
+from graphene.relay.types import BaseNode
 
 
 class DjangoObjectTypeMeta(ObjectTypeMeta):
@@ -38,6 +37,7 @@ class DjangoObjectTypeMeta(ObjectTypeMeta):
 
 
 class InstanceObjectType(BaseObjectType):
+
     def __init__(self, instance=None):
         self.instance = instance
         super(InstanceObjectType, self).__init__()

graphene/contrib/django/utils.py

@@ -1,6 +1,6 @@
 from django.db import models
-from django.db.models.query import QuerySet
 from django.db.models.manager import Manager
+from django.db.models.query import QuerySet
 
 from graphene.utils import LazyMap
 

graphene/contrib/django/views.py

@@ -1,8 +1,8 @@
 import json
 
+from django.conf import settings
 from django.http import HttpResponse
 from django.views.generic import View
-from django.conf import settings
 
 from graphql.core.error import GraphQLError, format_error
 

graphene/core/fields.py

@@ -1,26 +1,21 @@
 import inspect
+from functools import total_ordering, wraps
+
 import six
+
+from graphene.core.scalars import GraphQLSkipField
+from graphene.core.types import BaseObjectType, InputObjectType
+from graphene.utils import ProxySnakeDict, enum_to_graphql_enum, to_camel_case
+from graphql.core.type import (GraphQLArgument, GraphQLBoolean, GraphQLField,
+                               GraphQLFloat, GraphQLID,
+                               GraphQLInputObjectField, GraphQLInt,
+                               GraphQLList, GraphQLNonNull, GraphQLString)
+
 try:
     from enum import Enum
 except ImportError:
     class Enum(object):
         pass
-from functools import total_ordering, wraps
-from graphql.core.type import (
-    GraphQLField,
-    GraphQLList,
-    GraphQLNonNull,
-    GraphQLInt,
-    GraphQLString,
-    GraphQLBoolean,
-    GraphQLID,
-    GraphQLArgument,
-    GraphQLFloat,
-    GraphQLInputObjectField,
-)
-from graphene.utils import to_camel_case, ProxySnakeDict, enum_to_graphql_enum
-from graphene.core.types import BaseObjectType, InputObjectType
-from graphene.core.scalars import GraphQLSkipField
 
 
 class Empty(object):
@@ -252,10 +247,12 @@ class FloatField(TypeField):
 
 
 class ListField(Field):
+
     def type_wrapper(self, field_type):
         return GraphQLList(field_type)
 
 
 class NonNullField(Field):
+
     def type_wrapper(self, field_type):
         return GraphQLNonNull(field_type)

graphene/core/options.py

@@ -1,5 +1,6 @@
+from collections import OrderedDict
+
 from graphene.utils import cached_property
-from collections import OrderedDict, namedtuple
 
 DEFAULT_NAMES = ('description', 'name', 'is_interface', 'is_mutation',
                  'type_name', 'interfaces', 'proxy')

graphene/core/schema.py

@@ -1,19 +1,16 @@
-from functools import wraps
 from collections import OrderedDict
+from functools import wraps
 
-from graphql.core.type import (
-    GraphQLSchema as _GraphQLSchema
-)
-
-from graphql.core.execution.executor import Executor
-from graphql.core.execution.middlewares.sync import SynchronousExecutionMiddleware
-
-from graphql.core.utils.introspection_query import introspection_query
 from graphene import signals
-from graphene.utils import cached_property
+from graphql.core.execution.executor import Executor
+from graphql.core.execution.middlewares.sync import \
+    SynchronousExecutionMiddleware
+from graphql.core.type import GraphQLSchema as _GraphQLSchema
+from graphql.core.utils.introspection_query import introspection_query
 
 
 class GraphQLSchema(_GraphQLSchema):
+
     def __init__(self, schema, *args, **kwargs):
         self.graphene_schema = schema
         super(GraphQLSchema, self).__init__(*args, **kwargs)
@@ -61,7 +58,8 @@ class Schema(object):
     @property
     def executor(self):
         if not self._executor:
-            self.executor = Executor([SynchronousExecutionMiddleware()], map_type=OrderedDict)
+            self.executor = Executor(
+                [SynchronousExecutionMiddleware()], map_type=OrderedDict)
         return self._executor
 
     @executor.setter

graphene/core/types.py

@@ -1,19 +1,14 @@
-import inspect
-import six
 import copy
+import inspect
 from collections import OrderedDict
 
-from graphql.core.type import (
-    GraphQLObjectType,
-    GraphQLInputObjectType,
-    GraphQLInterfaceType,
-    GraphQLArgument
-)
+import six
 
 from graphene import signals
 from graphene.core.options import Options
-from graphene.utils import memoize
 from graphene.core.schema import register_internal_type
+from graphql.core.type import (GraphQLArgument, GraphQLInputObjectType,
+                               GraphQLInterfaceType, GraphQLObjectType)
 
 
 class ObjectTypeMeta(type):
@@ -45,14 +40,15 @@ class ObjectTypeMeta(type):
         else:
             meta = attr_meta
 
-        base_meta = getattr(new_class, '_meta', None)
+        getattr(new_class, '_meta', None)
 
         new_class.add_to_class('_meta', new_class.options_cls(meta))
 
         new_class._meta.is_interface = new_class.is_interface(parents)
         new_class._meta.is_mutation = new_class.is_mutation(parents)
 
-        assert not (new_class._meta.is_interface and new_class._meta.is_mutation)
+        assert not (
+            new_class._meta.is_interface and new_class._meta.is_mutation)
 
         input_class = None
         if new_class._meta.is_mutation:
@@ -63,12 +59,14 @@ class ObjectTypeMeta(type):
             new_class.add_to_class(obj_name, obj)
 
         if new_class._meta.is_mutation:
-            assert hasattr(new_class, 'mutate'), "All mutations must implement mutate method"
+            assert hasattr(
+                new_class, 'mutate'), "All mutations must implement mutate method"
 
         if input_class:
             items = dict(input_class.__dict__)
             items.pop('__dict__', None)
-            input_type = type('{}Input'.format(new_class._meta.type_name), (ObjectType, ), items)
+            input_type = type('{}Input'.format(
+                new_class._meta.type_name), (ObjectType, ), items)
             new_class.add_to_class('input_type', input_type)
 
         new_class.add_extra_fields()
@@ -166,7 +164,8 @@ class BaseObjectType(object):
                 except AttributeError:
                     pass
             if kwargs:
-                raise TypeError("'%s' is an invalid keyword argument for this function" % list(kwargs)[0])
+                raise TypeError(
+                    "'%s' is an invalid keyword argument for this function" % list(kwargs)[0])
 
         signals.post_init.send(self.__class__, instance=self)
 
@@ -215,12 +214,14 @@ class ObjectType(six.with_metaclass(ObjectTypeMeta, BaseObjectType)):
 
 
 class Mutation(six.with_metaclass(ObjectTypeMeta, BaseObjectType)):
+
     @classmethod
     def get_input_type(cls):
         return getattr(cls, 'input_type', None)
 
 
 class InputObjectType(ObjectType):
+
     @classmethod
     @register_internal_type
     def internal_type(cls, schema):

graphene/relay/__init__.py

@@ -15,4 +15,4 @@ from graphene.relay.types import (
 from graphene.relay.utils import is_node
 
 __all__ = ['ConnectionField', 'NodeField', 'GlobalIDField', 'Node',
-           'PageInfo', 'Edge', 'Connection', 'is_node']
+           'PageInfo', 'Edge', 'Connection', 'ClientIDMutation', 'is_node']

graphene/relay/fields.py

@@ -1,21 +1,10 @@
-from collections import Iterable, OrderedDict
-
-from graphql_relay.connection.arrayconnection import (
-    connection_from_list
-)
-from graphql_relay.connection.connection import (
-    connection_args
-)
-from graphql_relay.node.node import (
-    from_global_id
-)
-from graphql.core.type import (
-    GraphQLNonNull,
-    GraphQLID,
-    GraphQLArgument,
-)
+from collections import Iterable
 
 from graphene.core.fields import Field, IDField
+from graphql.core.type import GraphQLArgument, GraphQLID, GraphQLNonNull
+from graphql_relay.connection.arrayconnection import connection_from_list
+from graphql_relay.connection.connection import connection_args
+from graphql_relay.node.node import from_global_id
 
 
 class ConnectionField(Field):
@@ -68,6 +57,7 @@ class ConnectionField(Field):
 
 
 class NodeField(Field):
+
     def __init__(self, object_type=None, *args, **kwargs):
         from graphene.relay.types import Node
         super(NodeField, self).__init__(object_type or Node, *args, **kwargs)

graphene/relay/types.py

@@ -1,18 +1,20 @@
-from graphql_relay.node.node import (
-    to_global_id
-)
-
-from graphene.core.types import Interface, ObjectType, Mutation, InputObjectType
-from graphene.core.fields import BooleanField, StringField, ListField, Field
+from graphene.core.fields import BooleanField, Field, ListField, StringField
+from graphene.core.types import (InputObjectType, Interface, Mutation,
+                                 ObjectType)
 from graphene.relay.fields import GlobalIDField
 from graphene.utils import memoize
+from graphql_relay.node.node import to_global_id
 
 
 class PageInfo(ObjectType):
-    has_next_page = BooleanField(required=True, description='When paginating forwards, are there more items?')
-    has_previous_page = BooleanField(required=True, description='When paginating backwards, are there more items?')
-    start_cursor = StringField(description='When paginating backwards, the cursor to continue.')
-    end_cursor = StringField(description='When paginating forwards, the cursor to continue.')
+    has_next_page = BooleanField(
+        required=True, description='When paginating forwards, are there more items?')
+    has_previous_page = BooleanField(
+        required=True, description='When paginating backwards, are there more items?')
+    start_cursor = StringField(
+        description='When paginating backwards, the cursor to continue.')
+    end_cursor = StringField(
+        description='When paginating forwards, the cursor to continue.')
 
 
 class Edge(ObjectType):
@@ -20,8 +22,10 @@ class Edge(ObjectType):
     class Meta:
         type_name = 'DefaultEdge'
 
-    node = Field(lambda field: field.object_type.node_type, description='The item at the end of the edge')
-    cursor = StringField(required=True, description='A cursor for use in pagination')
+    node = Field(lambda field: field.object_type.node_type,
+                 description='The item at the end of the edge')
+    cursor = StringField(
+        required=True, description='A cursor for use in pagination')
 
     @classmethod
     @memoize
@@ -36,8 +40,10 @@ class Connection(ObjectType):
     class Meta:
         type_name = 'DefaultConnection'
 
-    page_info = Field(PageInfo, required=True, description='The Information to aid in pagination')
-    edges = ListField(lambda field: field.object_type.edge_type, description='Information to aid in pagination.')
+    page_info = Field(PageInfo, required=True,
+                      description='The Information to aid in pagination')
+    edges = ListField(lambda field: field.object_type.edge_type,
+                      description='Information to aid in pagination.')
 
     _connection_data = None
 
@@ -57,6 +63,7 @@ class Connection(ObjectType):
 
 
 class BaseNode(object):
+
     @classmethod
     def _prepare_class(cls):
         from graphene.relay.utils import is_node
@@ -97,13 +104,16 @@ class ClientIDMutation(Mutation):
     def _prepare_class(cls):
         input_type = getattr(cls, 'input_type', None)
         if input_type:
-            assert hasattr(cls, 'mutate_and_get_payload'), 'You have to implement mutate_and_get_payload'
-            new_input_inner_type = type('{}InnerInput'.format(cls._meta.type_name), (MutationInputType, input_type, ), {})
+            assert hasattr(
+                cls, 'mutate_and_get_payload'), 'You have to implement mutate_and_get_payload'
+            new_input_inner_type = type('{}InnerInput'.format(
+                cls._meta.type_name), (MutationInputType, input_type, ), {})
             items = {
                 'input': Field(new_input_inner_type)
             }
             assert issubclass(new_input_inner_type, InputObjectType)
-            input_type = type('{}Input'.format(cls._meta.type_name), (ObjectType, ), items)
+            input_type = type('{}Input'.format(
+                cls._meta.type_name), (ObjectType, ), items)
             setattr(cls, 'input_type', input_type)
 
     @classmethod

graphene/utils/lazymap.py

@@ -1,4 +1,5 @@
 class LazyMap(object):
+
     def __init__(self, origin, _map, state=None):
         self._origin = origin
         self._origin_iter = origin.__iter__()

graphene/utils/misc.py

@@ -1,10 +1,12 @@
 from collections import OrderedDict
+
 from graphql.core.type import GraphQLEnumType, GraphQLEnumValue
 
 
 def enum_to_graphql_enum(enumeration):
     return GraphQLEnumType(
         name=enumeration.__name__,
-        values=OrderedDict([(it.name, GraphQLEnumValue(it.value)) for it in enumeration]),
+        values=OrderedDict([(it.name, GraphQLEnumValue(it.value))
+                            for it in enumeration]),
         description=enumeration.__doc__
     )

setup.py

@@ -1,6 +1,6 @@
 import sys
 
-from setuptools import setup, find_packages
+from setuptools import find_packages, setup
 from setuptools.command.test import test as TestCommand
 
 

tests/contrib_django/data.py

@@ -1,6 +1,6 @@
 from datetime import date
 
-from .models import Reporter, Article
+from .models import Article, Reporter
 
 r = Reporter(first_name='John', last_name='Smith', email='john@example.com')
 r.save()

tests/contrib_django/models.py

@@ -1,4 +1,5 @@
 from __future__ import absolute_import
+
 from django.db import models
 
 

tests/contrib_django/test_converter.py

@@ -1,16 +1,13 @@
-from py.test import raises
-from collections import namedtuple
-from pytest import raises
-import graphene
-from graphene import relay
-from graphene.contrib.django.converter import (
-    convert_django_field
-)
-from graphene.contrib.django.fields import (
-    ConnectionOrListField,
-    DjangoModelField
-)
+
 from django.db import models
+from py.test import raises
+from pytest import raises
+
+import graphene
+from graphene.contrib.django.converter import convert_django_field
+from graphene.contrib.django.fields import (ConnectionOrListField,
+                                            DjangoModelField)
+
 from .models import Article, Reporter
 
 

tests/contrib_django/test_schema.py

@@ -1,16 +1,14 @@
+
 from py.test import raises
-from collections import namedtuple
 from pytest import raises
+
 import graphene
 from graphene import relay
-from graphene.contrib.django import (
-    DjangoObjectType,
-    DjangoNode
-)
-from .models import Reporter, Article
-
+from graphene.contrib.django import DjangoNode, DjangoObjectType
 from tests.utils import assert_equal_lists
 
+from .models import Article, Reporter
+
 
 def test_should_raise_if_no_model():
     with raises(Exception) as excinfo:

tests/contrib_django/test_types.py

@@ -1,29 +1,14 @@
-from py.test import raises
-from collections import namedtuple
-from pytest import raises
-from graphene.relay.fields import (
-    GlobalIDField
-)
-from graphene.core.fields import (
-    Field,
-    StringField,
-    IntField
-)
-from graphql.core.type import (
-    GraphQLObjectType,
-    GraphQLInterfaceType
-)
+
 
 from graphene import Schema
-from graphene.contrib.django.types import (
-    DjangoNode,
-    DjangoInterface
-)
-
-from .models import Reporter, Article
-
+from graphene.contrib.django.types import DjangoInterface, DjangoNode
+from graphene.core.fields import IntField
+from graphene.relay.fields import GlobalIDField
+from graphql.core.type import GraphQLInterfaceType, GraphQLObjectType
 from tests.utils import assert_equal_lists
 
+from .models import Article, Reporter
+
 
 class Character(DjangoInterface):
     '''Character description'''
@@ -82,7 +67,7 @@ def test_interface_resolve_type():
 
 def test_object_type():
     object_type = schema.T(Human)
-    fields_map = Human._meta.fields_map
+    Human._meta.fields_map
     assert Human._meta.is_interface is False
     assert isinstance(object_type, GraphQLObjectType)
     assert_equal_lists(

tests/contrib_django/test_urls.py

@@ -1,18 +1,15 @@
 from django.conf.urls import url
 
-from graphene.contrib.django.views import GraphQLView
-
 import graphene
 from graphene import Schema
-from graphene.contrib.django.types import (
-    DjangoNode,
-    DjangoInterface
-)
+from graphene.contrib.django.types import DjangoNode
+from graphene.contrib.django.views import GraphQLView
 
-from .models import Reporter, Article
+from .models import Article, Reporter
 
 
 class Character(DjangoNode):
+
     class Meta:
         model = Reporter
 

tests/contrib_django/test_views.py

@@ -1,22 +1,4 @@
 import json
-import pytest
-from py.test import raises
-from collections import namedtuple
-from pytest import raises
-from graphene.core.fields import (
-    Field,
-    StringField,
-)
-from graphql.core.type import (
-    GraphQLObjectType,
-    GraphQLInterfaceType
-)
-
-from graphene import Schema
-from graphene.contrib.django.types import (
-    DjangoNode,
-    DjangoInterface
-)
 
 
 def format_response(response):
@@ -27,33 +9,39 @@ def test_client_get_no_query(settings, client):
     settings.ROOT_URLCONF = 'tests.contrib_django.test_urls'
     response = client.get('/graphql')
     json_response = format_response(response)
-    assert json_response == {'errors': [{'message': 'Must provide query string.'}]}
+    assert json_response == {'errors': [
+        {'message': 'Must provide query string.'}]}
 
 
 def test_client_post_no_query(settings, client):
     settings.ROOT_URLCONF = 'tests.contrib_django.test_urls'
     response = client.post('/graphql', {})
     json_response = format_response(response)
-    assert json_response == {'errors': [{'message': 'Must provide query string.'}]}
+    assert json_response == {'errors': [
+        {'message': 'Must provide query string.'}]}
 
 
 def test_client_post_malformed_json(settings, client):
     settings.ROOT_URLCONF = 'tests.contrib_django.test_urls'
     response = client.post('/graphql', 'MALFORMED', 'application/json')
     json_response = format_response(response)
-    assert json_response == {'errors': [{'message': 'Malformed json body in the post data'}]}
+    assert json_response == {'errors': [
+        {'message': 'Malformed json body in the post data'}]}
 
 
 def test_client_post_empty_query(settings, client):
     settings.ROOT_URLCONF = 'tests.contrib_django.test_urls'
-    response = client.post('/graphql', json.dumps({'query': ''}), 'application/json')
+    response = client.post(
+        '/graphql', json.dumps({'query': ''}), 'application/json')
     json_response = format_response(response)
-    assert json_response == {'errors': [{'message': 'Must provide query string.'}]}
+    assert json_response == {'errors': [
+        {'message': 'Must provide query string.'}]}
 
 
 def test_client_post_bad_query(settings, client):
     settings.ROOT_URLCONF = 'tests.contrib_django.test_urls'
-    response = client.post('/graphql', json.dumps({'query': '{ MALFORMED'}), 'application/json')
+    response = client.post(
+        '/graphql', json.dumps({'query': '{ MALFORMED'}), 'application/json')
     json_response = format_response(response)
     assert 'errors' in json_response
     assert len(json_response['errors']) == 1
@@ -76,13 +64,15 @@ def test_client_get_good_query_with_raise(settings, client):
     settings.ROOT_URLCONF = 'tests.contrib_django.test_urls'
     response = client.get('/graphql', {'query': '{ raises }'})
     json_response = format_response(response)
-    assert json_response['errors'][0]['message'] == 'This field should raise exception'
+    assert json_response['errors'][0][
+        'message'] == 'This field should raise exception'
     assert json_response['data']['raises'] is None
 
 
 def test_client_post_good_query(settings, client):
     settings.ROOT_URLCONF = 'tests.contrib_django.test_urls'
-    response = client.post('/graphql', json.dumps({'query': '{ headline }'}), 'application/json')
+    response = client.post(
+        '/graphql', json.dumps({'query': '{ headline }'}), 'application/json')
     json_response = format_response(response)
     expected_json = {
         'data': {
@@ -97,5 +87,3 @@ def test_client_post_good_query(settings, client):
 #     response = client.get('/graphql')
 #     json_response = format_response(response)
 #     assert json_response == {'errors': [{'message': 'Must provide query string.'}]}
-
-

tests/core/test_fields.py

@@ -1,24 +1,13 @@
+
 from py.test import raises
-from collections import namedtuple
 from pytest import raises
 
-from graphql.core.type import (
-    GraphQLField,
-    GraphQLNonNull,
-    GraphQLInt,
-    GraphQLString,
-    GraphQLBoolean,
-    GraphQLID,
-)
-
-from graphene.core.fields import (
-    Field,
-    StringField,
-    NonNullField
-)
+from graphene.core.fields import Field, NonNullField, StringField
 from graphene.core.options import Options
 from graphene.core.schema import Schema
 from graphene.core.types import ObjectType
+from graphql.core.type import (GraphQLBoolean, GraphQLField, GraphQLID,
+                               GraphQLInt, GraphQLNonNull, GraphQLString)
 
 
 class ObjectType(object):
@@ -149,7 +138,8 @@ def test_field_none_type_raises_error():
     f.contribute_to_class(ot, 'field_name')
     with raises(Exception) as excinfo:
         f.internal_field(s)
-    assert str(excinfo.value) == "Internal type for field ObjectType.field_name is None"
+    assert str(
+        excinfo.value) == "Internal type for field ObjectType.field_name is None"
 
 
 def test_field_str():

tests/core/test_mutations.py

@@ -1,5 +1,5 @@
+
 import graphene
-from py.test import raises
 from graphene.core.schema import Schema
 
 my_id = 0

tests/core/test_options.py

@@ -1,11 +1,8 @@
-from py.test import raises
-from collections import namedtuple
-from pytest import raises
-from graphene.core.fields import (
-    Field,
-    StringField,
-)
 
+from py.test import raises
+from pytest import raises
+
+from graphene.core.fields import StringField
 from graphene.core.options import Options
 
 
@@ -57,7 +54,6 @@ def test_options_description():
     class ObjectType(object):
 
         '''False description'''
-        pass
 
     opt.contribute_to_class(ObjectType, '_meta')
     assert opt.description == 'False description'

tests/core/test_query.py

@@ -1,23 +1,11 @@
-from py.test import raises
-from collections import namedtuple
-from pytest import raises
-from graphql.core import graphql
-from graphene.core.fields import (
-    Field,
-    StringField,
-    ListField,
-)
-from graphql.core.type import (
-    GraphQLObjectType,
-    GraphQLSchema,
-    GraphQLInterfaceType
-)
 
-from graphene.core.types import (
-    Interface,
-    ObjectType
-)
+
+from graphene.core.fields import Field, ListField, StringField
 from graphene.core.schema import Schema
+from graphene.core.types import Interface, ObjectType
+from graphql.core import graphql
+from graphql.core.type import (GraphQLInterfaceType, GraphQLObjectType,
+                               GraphQLSchema)
 
 
 class Character(Interface):
@@ -50,7 +38,8 @@ Human_type = schema.T(Human)
 
 
 def test_type():
-    assert Human._meta.fields_map['name'].resolve(Human(object()), None, None) == 'Peter'
+    assert Human._meta.fields_map['name'].resolve(
+        Human(object()), None, None) == 'Peter'
 
 
 def test_query():

tests/core/test_scalars.py

@@ -1,6 +1,4 @@
-from graphene.core.scalars import (
-    GraphQLSkipField
-)
+from graphene.core.scalars import GraphQLSkipField
 
 
 def test_skipfield_serialize():

tests/core/test_schema.py

@@ -1,24 +1,12 @@
+
 from py.test import raises
-from collections import namedtuple
 from pytest import raises
+
+from graphene import Interface, ObjectType, Schema
+from graphene.core.fields import Field, ListField, StringField
 from graphql.core import graphql
-from graphene.core.fields import (
-    Field,
-    StringField,
-    ListField,
-)
-from graphql.core.type import (
-    GraphQLObjectType,
-    GraphQLSchema,
-    GraphQLInterfaceType
-)
-
-from graphene import (
-    Interface,
-    ObjectType,
-    Schema
-)
-
+from graphql.core.type import (GraphQLInterfaceType, GraphQLObjectType,
+                               GraphQLSchema)
 from tests.utils import assert_equal_lists
 
 schema = Schema(name='My own schema')
@@ -63,7 +51,7 @@ def test_schema_query():
 
 
 def test_query_schema_graphql():
-    a = object()
+    object()
     query = '''
     {
       name
@@ -84,7 +72,7 @@ def test_query_schema_graphql():
 
 
 def test_query_schema_execute():
-    a = object()
+    object()
     query = '''
     {
       name
@@ -107,7 +95,8 @@ def test_query_schema_execute():
 def test_schema_get_type_map():
     assert_equal_lists(
         schema.schema.get_type_map().keys(),
-        ['__Field', 'String', 'Pet', 'Character', '__InputValue', '__Directive', '__TypeKind', '__Schema', '__Type', 'Human', '__EnumValue', 'Boolean']
+        ['__Field', 'String', 'Pet', 'Character', '__InputValue', '__Directive',
+            '__TypeKind', '__Schema', '__Type', 'Human', '__EnumValue', 'Boolean']
     )
 
 

tests/core/test_types.py

@@ -1,22 +1,12 @@
 from py.test import raises
 from pytest import raises
-from graphene.core.fields import (
-    IntField,
-    StringField,
-)
-from graphql.core.execution.middlewares.utils import (
-    tag_resolver,
-    resolver_has_tag
-)
-from graphql.core.type import (
-    GraphQLObjectType,
-    GraphQLInterfaceType
-)
 
-from graphene.core.types import (
-    Interface
-)
+from graphene.core.fields import IntField, StringField
 from graphene.core.schema import Schema
+from graphene.core.types import Interface
+from graphql.core.execution.middlewares.utils import (resolver_has_tag,
+                                                      tag_resolver)
+from graphql.core.type import GraphQLInterfaceType, GraphQLObjectType
 
 
 class Character(Interface):
@@ -60,7 +50,7 @@ def test_interface():
 
 def test_interface_cannot_initialize():
     with raises(Exception) as excinfo:
-        c = Character()
+        Character()
     assert 'An interface cannot be initialized' == str(excinfo.value)
 
 
@@ -77,7 +67,8 @@ def test_object_type():
     assert object_type.description == 'Human description'
     assert list(object_type.get_fields().keys()) == ['name', 'friends']
     # assert object_type.get_fields() == {'name': Human._meta.fields_map['name'].internal_field(
-    #     schema), 'friends': Human._meta.fields_map['friends'].internal_field(schema)}
+    # schema), 'friends':
+    # Human._meta.fields_map['friends'].internal_field(schema)}
     assert object_type.get_interfaces() == [schema.T(Character)]
     assert Human._meta.fields_map['name'].object_type == Human
 

tests/relay/test_relay.py

@@ -23,7 +23,7 @@ def test_field_no_contributed_raises_error():
 
 
 def test_node_should_have_same_connection_always():
-    s = object()
+    object()
     connection1 = relay.Connection.for_node(OtherNode)
     connection2 = relay.Connection.for_node(OtherNode)
 

tests/relay/test_relay_mutations.py

@@ -1,11 +1,8 @@
-from graphql.core.type import (
-    GraphQLInputObjectField
-)
-
 import graphene
 from graphene import relay
-from graphene.core.types import InputObjectType
 from graphene.core.schema import Schema
+from graphene.core.types import InputObjectType
+from graphql.core.type import GraphQLInputObjectField
 
 my_id = 0
 
@@ -41,11 +38,13 @@ def test_mutation_input():
     assert list(ChangeNumber.input_type._meta.fields_map.keys()) == ['input']
     _input = ChangeNumber.input_type._meta.fields_map['input']
     inner_type = _input.get_object_type(schema)
-    client_mutation_id_field = inner_type._meta.fields_map['client_mutation_id']
+    client_mutation_id_field = inner_type._meta.fields_map[
+        'client_mutation_id']
     assert issubclass(inner_type, InputObjectType)
     assert isinstance(client_mutation_id_field, graphene.StringField)
     assert client_mutation_id_field.object_type == inner_type
-    assert isinstance(client_mutation_id_field.internal_field(schema), GraphQLInputObjectField)
+    assert isinstance(client_mutation_id_field.internal_field(
+        schema), GraphQLInputObjectField)
 
 
 def test_execute_mutations():

tests/relay/test_relayfields.py

@@ -1,16 +1,13 @@
-from graphql.core.type import (
-    GraphQLNonNull,
-    GraphQLID
-)
-
 import graphene
 from graphene import relay
+from graphql.core.type import GraphQLID, GraphQLNonNull
 
 schema = graphene.Schema()
 
 
 class MyConnection(relay.Connection):
-    my_custom_field = graphene.StringField(resolve=lambda instance, *_: 'Custom')
+    my_custom_field = graphene.StringField(
+        resolve=lambda instance, *_: 'Custom')
 
 
 class MyNode(relay.Node):
@@ -23,7 +20,8 @@ class MyNode(relay.Node):
 
 class Query(graphene.ObjectType):
     my_node = relay.NodeField(MyNode)
-    all_my_nodes = relay.ConnectionField(MyNode, connection_type=MyConnection, customArg=graphene.Argument(graphene.String))
+    all_my_nodes = relay.ConnectionField(
+        MyNode, connection_type=MyConnection, customArg=graphene.Argument(graphene.String))
 
     def resolve_all_my_nodes(self, args, info):
         custom_arg = args.get('customArg')

tests/utils/test_misc.py

@@ -1,6 +1,7 @@
 import collections
-from graphql.core.type import GraphQLEnumType
+
 from graphene.utils.misc import enum_to_graphql_enum
+from graphql.core.type import GraphQLEnumType
 
 item = collections.namedtuple('type', 'name value')
 
@@ -10,4 +11,5 @@ class MyCustomEnum(list):
 
 
 def test_enum_to_graphql_enum():
-    assert isinstance(enum_to_graphql_enum(MyCustomEnum([item('k', 'v')])), GraphQLEnumType)
+    assert isinstance(enum_to_graphql_enum(
+        MyCustomEnum([item('k', 'v')])), GraphQLEnumType)

tests/utils/test_proxy_snake_dict.py

@@ -1,9 +1,11 @@
 from py.test import raises
+
 from graphene.utils import ProxySnakeDict
 
 
 def test_proxy_snake_dict():
-    my_data = {'one': 1, 'two': 2, 'none': None, 'threeOrFor': 3, 'inside': {'otherCamelCase': 3}}
+    my_data = {'one': 1, 'two': 2, 'none': None,
+               'threeOrFor': 3, 'inside': {'otherCamelCase': 3}}
     p = ProxySnakeDict(my_data)
     assert 'one' in p
     assert 'two' in p

tests/utils/test_str_converter.py

@@ -1,4 +1,4 @@
-from graphene.utils import to_snake_case, to_camel_case
+from graphene.utils import to_camel_case, to_snake_case
 
 
 def test_snake_case():

tox.ini

@@ -1,5 +1,6 @@
 [tox]
-envlist = py27,py33,py34,py35,pypy
+envlist = flake8,py27,py33,py34,py35,pypy
+skipsdist = true
 
 [testenv]
 deps=
@@ -14,7 +15,13 @@ deps=
 setenv =
      PYTHONPATH = .:{envdir}
 commands=
-    py.test tests/
+    py.test tests/ examples/
+
+[testenv:flake8]
+deps = flake8
+commands =
+    pip install -e .
+    flake8 graphene
 
 [pytest]
 DJANGO_SETTINGS_MODULE = tests.django_settings