Remove support for Python 3.6

Note that Python 3.6 is not officially supported any more since 2022.

Author: Cito

.github/workflows/test.yml

@@ -8,7 +8,7 @@ jobs:
 
     strategy:
       matrix:
-        python: ['3.6', '3.7', '3.8', '3.9', '3.10', 'pypy3']
+        python: ['3.7', '3.8', '3.9', '3.10', 'pypy3']
 
     steps:
       - uses: actions/checkout@v2

docs/conf.py

@@ -68,7 +68,7 @@
 #
 # This is also used if you do content translation via gettext catalogs.
 # Usually you set "language" from the command line for these cases.
-language = None
+language = 'en'
 
 # There are two options for replacing |today|: either, you set today to some
 # non-false value, then it is used:

pyproject.toml

@@ -18,7 +18,6 @@ classifiers = [
     "Intended Audience :: Developers",
     "License :: OSI Approved :: MIT License",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.6",
     "Programming Language :: Python :: 3.7",
     "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
@@ -43,47 +42,30 @@ packages = [
 ]
 
 [tool.poetry.dependencies]
-python = "^3.6"
+python = "^3.7"
 typing-extensions = [
-    { version = "^4.3", python = ">=3.7,<3.8" },
-    { version = "^4.1", python = "<3.7" }
+    { version = "^4.3", python = "<3.8" },
 ]
 
 [tool.poetry.dev-dependencies]
-pytest = "^6.2"
-pytest-asyncio = [
-    {version=">=0.19,<1", python = ">=3.7" },
-    {version=">=0.16,<0.17", python = "<3.7" },
-]
+pytest = "^7.1"
+pytest-asyncio = ">=0.19,<1"
 pytest-benchmark = "^3.4"
 pytest-cov = "^3.0"
 pytest-describe = "^2.0"
 pytest-timeout = "^2.1"
-black = [
-    {version = "22.8.0", python = ">=3.6.2"},
-    {version = "20.8b1", python = "<3.6.2"}
-]
-flake8 = [
-    {version = "^5.0", python = ">=3.6.1"},
-    {version = "^4.0", python = "<3.6.1"}
-]
+black = "22.8.0"
+flake8 = "^5.0"
 mypy = "0.971"
-sphinx = "^4.3"
+sphinx = "^5.1"
 sphinx_rtd_theme = ">=1,<2"
 check-manifest = ">=0.48,<1"
 bump2version = ">=1.0,<2"
-tomli = [
-    {version="^2", python = ">=3.7"},
-    {version="^1.2", python = "<3.7"}
-]
-tox = [
-    {version = "^3.26", python = ">=3.7"},
-    {version = "3.25", python = "<3.7"}
-]
+tox = "^3.26"
 
 [tool.black]
-target-version = ['py36', 'py37', 'py38', 'py39', 'py310']
+target-version = ['py37', 'py38', 'py39', 'py310']
 
 [build-system]
-requires = ["poetry_core>=1,<2", "setuptools>=59,<70"]
+requires = ["poetry_core>=1,<2", "setuptools>=65,<70"]
 build-backend = "poetry.core.masonry.api"

setup.py

@@ -26,16 +26,15 @@
         "License :: OSI Approved :: MIT License",
         "Programming Language :: Python :: 3",
         "Programming Language :: Python :: 3 :: Only",
-        "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
     ],
     install_requires=[
-        "typing-extensions>=4.2,<5; python_version < '3.8'",
+        "typing-extensions>=4.3,<5; python_version < '3.8'",
     ],
-    python_requires=">=3.6,<4",
+    python_requires=">=3.7,<4",
     packages=find_packages("src"),
     package_dir={"": "src"},
     # PEP-561: https://www.python.org/dev/peps/pep-0561/

src/graphql/language/character_classes.py

@@ -1,68 +1,33 @@
 __all__ = ["is_digit", "is_letter", "is_name_start", "is_name_continue"]
 
-try:
-    "string".isascii()
-except AttributeError:  # Python < 3.7
 
-    def is_digit(char: str) -> bool:
-        """Check whether char is a digit
+def is_digit(char: str) -> bool:
+    """Check whether char is a digit
 
-        For internal use by the lexer only.
-        """
-        return "0" <= char <= "9"
+    For internal use by the lexer only.
+    """
+    return char.isascii() and char.isdigit()
 
-    def is_letter(char: str) -> bool:
-        """Check whether char is a plain ASCII letter
 
-        For internal use by the lexer only.
-        """
-        return "a" <= char <= "z" or "A" <= char <= "Z"
+def is_letter(char: str) -> bool:
+    """Check whether char is a plain ASCII letter
 
-    def is_name_start(char: str) -> bool:
-        """Check whether char is allowed at the beginning of a GraphQL name
+    For internal use by the lexer only.
+    """
+    return char.isascii() and char.isalpha()
 
-        For internal use by the lexer only.
-        """
-        return "a" <= char <= "z" or "A" <= char <= "Z" or char == "_"
 
-    def is_name_continue(char: str) -> bool:
-        """Check whether char is allowed in the continuation of a GraphQL name
+def is_name_start(char: str) -> bool:
+    """Check whether char is allowed at the beginning of a GraphQL name
 
-        For internal use by the lexer only.
-        """
-        return (
-            "a" <= char <= "z"
-            or "A" <= char <= "Z"
-            or "0" <= char <= "9"
-            or char == "_"
-        )
+    For internal use by the lexer only.
+    """
+    return char.isascii() and (char.isalpha() or char == "_")
 
-else:
 
-    def is_digit(char: str) -> bool:
-        """Check whether char is a digit
+def is_name_continue(char: str) -> bool:
+    """Check whether char is allowed in the continuation of a GraphQL name
 
-        For internal use by the lexer only.
-        """
-        return char.isascii() and char.isdigit()
-
-    def is_letter(char: str) -> bool:
-        """Check whether char is a plain ASCII letter
-
-        For internal use by the lexer only.
-        """
-        return char.isascii() and char.isalpha()
-
-    def is_name_start(char: str) -> bool:
-        """Check whether char is allowed at the beginning of a GraphQL name
-
-        For internal use by the lexer only.
-        """
-        return char.isascii() and (char.isalpha() or char == "_")
-
-    def is_name_continue(char: str) -> bool:
-        """Check whether char is allowed in the continuation of a GraphQL name
-
-        For internal use by the lexer only.
-        """
-        return char.isascii() and (char.isalnum() or char == "_")
+    For internal use by the lexer only.
+    """
+    return char.isascii() and (char.isalnum() or char == "_")

src/graphql/pyutils/simple_pub_sub.py

@@ -2,10 +2,7 @@
 from inspect import isawaitable
 from typing import Any, AsyncIterator, Callable, Optional, Set
 
-try:
-    from asyncio import get_running_loop
-except ImportError:
-    from asyncio import get_event_loop as get_running_loop  # Python < 3.7
+from asyncio import get_running_loop
 
 
 __all__ = ["SimplePubSub", "SimplePubSubIterator"]

tests/test_docs.py

@@ -135,16 +135,13 @@ def executing_queries(capsys):
         async_query = queries.pop(0)
         assert "asyncio" in async_query and "graphql_sync" not in async_query
         assert "asyncio.run" in async_query
-        try:  # pragma: no cover
-            from asyncio import run  # noqa: F401
-        except ImportError:  # Python < 3.7
-            assert "ExecutionResult" in expected_result(queries)
-        else:  # pragma: no cover
-            exec(async_query, scope)
-            out, err = capsys.readouterr()
-            assert not err
-            assert "R2-D2" in out
-            assert out == expected_result(queries)
+        from asyncio import run  # noqa: F401
+
+        exec(async_query, scope)
+        out, err = capsys.readouterr()
+        assert not err
+        assert "R2-D2" in out
+        assert out == expected_result(queries)
 
         sync_query = queries.pop(0)
         assert "graphql_sync" in sync_query and "asyncio" not in sync_query

tests/test_user_registry.py

@@ -10,10 +10,7 @@
 from inspect import isawaitable
 from typing import Any, Dict, List, NamedTuple, Optional
 
-try:
-    from asyncio import create_task
-except ImportError:  # Python < 3.7
-    create_task = None  # type: ignore
+from asyncio import create_task
 
 from pytest import fixture, mark
 

tox.ini

@@ -1,10 +1,9 @@
 [tox]
-envlist = py3{6,7,8,9,10}, black, flake8, mypy, docs, manifest
+envlist = py3{7,8,9,10}, black, flake8, mypy, docs, manifest
 isolated_build = true
 
 [gh-actions]
 python =
-    3.6: py36
     3.7: py37
     3.8: py38
     3.9: py39
@@ -26,14 +25,14 @@ commands =
 basepython = python3.9
 deps =
     mypy==0.971
-    pytest>=6.2,<7
+    pytest>=7.1,<8
 commands =
     mypy src tests
 
 [testenv:docs]
 basepython = python3.9
 deps =
-    sphinx>=4.3,<5
+    sphinx>=5.1,<6
     sphinx_rtd_theme>=1,<2
 commands =
     sphinx-build -b html -nEW docs docs/_build/html
@@ -46,14 +45,12 @@ commands =
 
 [testenv]
 deps =
-    py37,py38,py39,py310: pytest>=7.1,<8
-    py36: pytest>=6.2,<7
-    pytest-asyncio>=0.16,<1
+    pytest>=7.1,<8
+    pytest-asyncio>=0.19,<1
     pytest-benchmark>=3.4,<4
     pytest-cov>=3,<4
     pytest-describe>=2,<3
     pytest-timeout>=2,<3
     py37: typing-extensions>=4.3,<5
-    py36: typing-extensions>=4.1,<5
 commands =
     pytest tests {posargs: --cov-report=term-missing --cov=graphql --cov=tests --cov-fail-under=100}