Reformat everything with black

.editorconfig

@@ -0,0 +1,21 @@
+# http://editorconfig.org
+
+root = true
+
+[*]
+indent_style = space
+indent_size = 4
+trim_trailing_whitespace = true
+insert_final_newline = true
+charset = utf-8
+end_of_line = lf
+
+[*.bat]
+indent_style = tab
+end_of_line = crlf
+
+[LICENSE]
+insert_final_newline = false
+
+[Makefile]
+indent_style = tab

.flake8

@@ -1,4 +1,4 @@
 [flake8]
-ignore = E203,W503,W503
+ignore = E203,W503,E704
 exclude = .git,.mypy_cache,.pytest_cache,.tox,.venv,__pycache__,build,dist,docs
 max-line-length = 88

MANIFEST.in

@@ -4,10 +4,13 @@ include CODEOWNERS
 include LICENSE
 include README.md
 
+include .bumpversion.cfg
 include .coveragerc
+include .editorconfig
 include .flake8
 
 include codecov.yml
+include mypy.ini
 include tox.ini
 
 include poetry.lock

mypy.ini

@@ -0,0 +1,4 @@
+[mypy]
+python_version = 3.7
+warn_redundant_casts = true
+warn_unused_ignores = True

setup.py

@@ -1,37 +1,37 @@
 from re import search
 from setuptools import setup, find_packages
 
-with open('src/graphql_relay/version.py') as version_file:
+with open("src/graphql_relay/version.py") as version_file:
     version = search('version = "(.*)"', version_file.read()).group(1)
 
-with open('README.md') as readme_file:
+with open("README.md") as readme_file:
     readme = readme_file.read()
 
 setup(
-    name='graphql-relay',
+    name="graphql-relay",
     version=version,
-    description='Relay library for graphql-core-next',
+    description="Relay library for graphql-core-next",
     long_description=readme,
-    long_description_content_type='text/markdown',
-    keywords='graphql relay api',
-    url='https://github.com/graphql-python/graphql-relay-py',
-    author='Syrus Akbary',
-    author_email='[email protected]',
-    license='MIT',
+    long_description_content_type="text/markdown",
+    keywords="graphql relay api",
+    url="https://github.com/graphql-python/graphql-relay-py",
+    author="Syrus Akbary",
+    author_email="[email protected]",
+    license="MIT",
     classifiers=[
-        'Development Status :: 5 - Production/Stable',
-        'Intended Audience :: Developers',
-        'Topic :: Software Development :: Libraries',
-        'License :: OSI Approved :: MIT License',
-        'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.6',
-        'Programming Language :: Python :: 3.7',
-        'Programming Language :: Python :: Implementation :: PyPy',
+        "Development Status :: 5 - Production/Stable",
+        "Intended Audience :: Developers",
+        "Topic :: Software Development :: Libraries",
+        "License :: OSI Approved :: MIT License",
+        "Programming Language :: Python :: 3",
+        "Programming Language :: Python :: 3.6",
+        "Programming Language :: Python :: 3.7",
+        "Programming Language :: Python :: Implementation :: PyPy",
     ],
-    install_requires=['graphql-core>=3.0.0a0'],
-    python_requires='>=3.6,<4',
-    packages=find_packages('src'),
-    package_dir={'': 'src'},
+    install_requires=["graphql-core>=3.0.0a0"],
+    python_requires=">=3.6,<4",
+    packages=find_packages("src"),
+    package_dir={"": "src"},
     # PEP-561: https://www.python.org/dev/peps/pep-0561/
     package_data={"graphql_relay": ["py.typed"]},
     include_package_data=True,

src/graphql_relay/__init__.py

@@ -5,18 +5,31 @@
 
 # Types for creating connection types in the schema
 from .connection.connectiontypes import (
-    Connection, ConnectionArguments, ConnectionCursor, Edge, PageInfo)
+    Connection,
+    ConnectionArguments,
+    ConnectionCursor,
+    Edge,
+    PageInfo,
+)
 
 # Helpers for creating connection types in the schema
 from .connection.connection import (
-    backward_connection_args, connection_args, connection_definitions,
-    forward_connection_args, GraphQLConnectionDefinitions)
+    backward_connection_args,
+    connection_args,
+    connection_definitions,
+    forward_connection_args,
+    GraphQLConnectionDefinitions,
+)
 
 # Helpers for creating connections from arrays
 from .connection.arrayconnection import (
-    connection_from_array, connection_from_array_slice,
+    connection_from_array,
+    connection_from_array_slice,
     cursor_for_object_in_connection,
-    cursor_to_offset, get_offset_with_default, offset_to_cursor)
+    cursor_to_offset,
+    get_offset_with_default,
+    offset_to_cursor,
+)
 
 # Helper for creating mutations with client mutation IDs
 from .mutation.mutation import mutation_with_client_mutation_id
@@ -28,29 +41,45 @@
 from .node.plural import plural_identifying_root_field
 
 # Utilities for creating global IDs in systems that don't have them
-from .node.node import (
-    from_global_id, global_id_field, to_global_id)
+from .node.node import from_global_id, global_id_field, to_global_id
 
 # Deprecated functions from older graphql-relay-py versions
 # noinspection PyProtectedMember,PyUnresolvedReferences,PyDeprecation
 from .connection.arrayconnection import (  # noqa: F401
-    connection_from_list, connection_from_list_slice)
+    connection_from_list,
+    connection_from_list_slice,
+)
 
 __version__ = version
 __version_info__ = version_info
 __version_js__ = version_js
 __version_info_js__ = version_info_js
 
 __all__ = [
-    'version', 'version_info', 'version_js', 'version_info_js',
-    'Connection', 'ConnectionArguments', 'ConnectionCursor', 'Edge', 'PageInfo',
-    'backward_connection_args', 'connection_args', 'connection_definitions',
-    'forward_connection_args', 'GraphQLConnectionDefinitions',
-    'connection_from_array', 'connection_from_array_slice',
-    'cursor_for_object_in_connection', 'cursor_to_offset',
-    'get_offset_with_default', 'offset_to_cursor',
-    'mutation_with_client_mutation_id',
-    'node_definitions',
-    'plural_identifying_root_field',
-    'from_global_id', 'global_id_field', 'to_global_id',
+    "version",
+    "version_info",
+    "version_js",
+    "version_info_js",
+    "Connection",
+    "ConnectionArguments",
+    "ConnectionCursor",
+    "Edge",
+    "PageInfo",
+    "backward_connection_args",
+    "connection_args",
+    "connection_definitions",
+    "forward_connection_args",
+    "GraphQLConnectionDefinitions",
+    "connection_from_array",
+    "connection_from_array_slice",
+    "cursor_for_object_in_connection",
+    "cursor_to_offset",
+    "get_offset_with_default",
+    "offset_to_cursor",
+    "mutation_with_client_mutation_id",
+    "node_definitions",
+    "plural_identifying_root_field",
+    "from_global_id",
+    "global_id_field",
+    "to_global_id",
 ]