Bump version number, remove support for Python 2

Version 3 of gql only supports Python 3.6+

Author: Cito

gql-checker/gql_checker/__about__.py

@@ -1,5 +1,3 @@
-from __future__ import absolute_import, division, print_function
-
 __all__ = [
     "__title__", "__summary__", "__uri__", "__version__", "__author__",
     "__email__", "__license__", "__copyright__",

gql-checker/setup.py

@@ -52,7 +52,6 @@
         "Development Status :: 4 - Beta",
         "License :: OSI Approved :: MIT License",
         "Programming Language :: Python",
-        "Programming Language :: Python :: 2",
         "Programming Language :: Python :: 3",
         (
             "License :: OSI Approved :: "

gql/dsl.py

@@ -1,6 +1,6 @@
+from collections.abc import Iterable
 from functools import partial
 
-import six
 from graphql import (
     ArgumentNode,
     DocumentNode,
@@ -25,11 +25,6 @@
 
 from .utils import to_camel_case
 
-if six.PY3:
-    from collections.abc import Iterable
-else:
-    from collections import Iterable
-
 
 class DSLSchema(object):
     def __init__(self, client):

gql/gql.py

@@ -1,11 +1,8 @@
-import six
-from graphql.language.parser import parse
-from graphql.language.source import Source
+from graphql import Source, parse
 
 
 def gql(request_string):
-    if isinstance(request_string, six.string_types):
-        source = Source(request_string, "GraphQL request")
-        return parse(source)
-    else:
-        raise Exception('Received incompatible request "{}".'.format(request_string))
+    if not isinstance(request_string, str):
+        raise Exception(f'Received incompatible request "{request_string}".')
+    source = Source(request_string, "GraphQL request")
+    return parse(source)

gql/transport/async_transport.py

@@ -1,12 +1,9 @@
 import abc
 from typing import AsyncGenerator, Dict, Optional
 
-import six
-from graphql.execution import ExecutionResult
-from graphql.language.ast import DocumentNode
+from graphql import DocumentNode, ExecutionResult
 
 
-@six.add_metaclass(abc.ABCMeta)
 class AsyncTransport:
     @abc.abstractmethod
     async def connect(self):

gql/transport/local_schema.py

@@ -1,6 +1,4 @@
-from graphql import GraphQLSchema
-from graphql.execution import ExecutionResult, execute
-from graphql.language.ast import DocumentNode
+from graphql import DocumentNode, ExecutionResult, GraphQLSchema, execute
 
 from gql.transport import Transport
 

gql/transport/transport.py

@@ -1,11 +1,8 @@
 import abc
 
-import six
-from graphql.execution import ExecutionResult
-from graphql.language.ast import DocumentNode
+from graphql import DocumentNode, ExecutionResult
 
 
-@six.add_metaclass(abc.ABCMeta)
 class Transport:
     @abc.abstractmethod
     def execute(self, document: DocumentNode, *args, **kwargs) -> ExecutionResult:

setup.py

@@ -4,7 +4,6 @@
     "aiohttp==3.6.2",
     "graphql-core>=3.1,<3.2",
     "requests>=2.23,<3",
-    "six>=1.10.0",
     "websockets>=8.1,<9",
     "yarl>=1.4,<2.0",
 ]
@@ -33,7 +32,7 @@
 
 setup(
     name="gql",
-    version="0.5.0",
+    version="3.0.0dev",
     description="GraphQL client for Python",
     long_description=open("README.md").read(),
     long_description_content_type="text/markdown",
@@ -45,10 +44,7 @@
         "Development Status :: 3 - Alpha",
         "Intended Audience :: Developers",
         "Topic :: Software Development :: Libraries",
-        "Programming Language :: Python :: 2",
-        "Programming Language :: Python :: 2.7",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.5",
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
@@ -58,7 +54,7 @@
     packages=find_packages(include=["gql*"]),
     install_requires=install_requires,
     tests_require=tests_require,
-    extras_require={"test": tests_require, "dev": dev_requires,},
+    extras_require={"test": tests_require, "dev": dev_requires},
     include_package_data=True,
     zip_safe=False,
     platforms="any",

tests/starwars/test_query.py

@@ -1,5 +1,5 @@
 import pytest
-from graphql.error import format_error
+from graphql import format_error
 
 from gql import Client, gql
 from tests.starwars.schema import StarWarsSchema

tests/starwars/test_validation.py

@@ -5,7 +5,7 @@
 
 from .schema import StarWarsSchema
 
-introspection = graphql_sync(StarWarsSchema, get_introspection_query()).data  # type: ignore
+introspection = graphql_sync(StarWarsSchema, get_introspection_query()).data
 
 
 @pytest.fixture