maint(precommit): Apply isort (#3195)

* Apply isort

* Tweak isort config

* Add env.py as a known_first_party

* Add one missing known first party

* Make config compat with older isort versions

* Add another comment

* Revert pyproject setting

pybind11/__init__.py

@@ -1,8 +1,7 @@
 # -*- coding: utf-8 -*-
 
-from ._version import version_info, __version__
-from .commands import get_include, get_cmake_dir
-
+from ._version import __version__, version_info
+from .commands import get_cmake_dir, get_include
 
 __all__ = (
     "version_info",

pybind11/__main__.py

@@ -5,7 +5,7 @@ import argparse
 import sys
 import sysconfig
 
-from .commands import get_include, get_cmake_dir
+from .commands import get_cmake_dir, get_include
 
 
 def print_includes():

pybind11/_version.pyi

@@ -1,4 +1,4 @@
-from typing import Union, Tuple
+from typing import Tuple, Union
 
 def _to_int(s: str) -> Union[int, str]: ...
 

pybind11/commands.py

@@ -1,7 +1,6 @@
 # -*- coding: utf-8 -*-
 import os
 
-
 DIR = os.path.abspath(os.path.dirname(__file__))
 
 

pybind11/setup_helpers.py

@@ -41,23 +41,23 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 import contextlib
 import os
+import platform
 import shutil
 import sys
+import sysconfig
 import tempfile
 import threading
-import platform
 import warnings
-import sysconfig
 
 try:
-    from setuptools.command.build_ext import build_ext as _build_ext
     from setuptools import Extension as _Extension
+    from setuptools.command.build_ext import build_ext as _build_ext
 except ImportError:
     from distutils.command.build_ext import build_ext as _build_ext
     from distutils.extension import Extension as _Extension
 
-import distutils.errors
 import distutils.ccompiler
+import distutils.errors
 
 WIN = sys.platform.startswith("win32") and "mingw" not in sysconfig.get_platform()
 PY2 = sys.version_info[0] < 3

pybind11/setup_helpers.pyi

@@ -1,13 +1,12 @@
 # IMPORTANT: Should stay in sync with setup_helpers.py (mostly checked by CI /
 # pre-commit).
 
-from typing import Any, Callable, Dict, Iterator, List, Optional, Type, TypeVar, Union
-from types import TracebackType
-
+import contextlib
+import distutils.ccompiler
 from distutils.command.build_ext import build_ext as _build_ext  # type: ignore
 from distutils.extension import Extension as _Extension
-import distutils.ccompiler
-import contextlib
+from types import TracebackType
+from typing import Any, Callable, Dict, Iterator, List, Optional, Type, TypeVar, Union
 
 WIN: bool
 PY2: bool