Use of deprecated / removed pkg_resources

[loqs]

pkg_resources pkg_resources was deprecated in Setuptools v67.5.0. It was removed in Setuptools v82.0.0. It is used in setup.py. There is a pkg_resources migration guide. This causes the build to fail with setuptools 82 if cythonize is need:

* Getting build dependencies for wheel...
* Building wheel...
/usr/lib/python3.14/site-packages/setuptools/config/_apply_pyprojecttoml.py:82: SetuptoolsDeprecationWarning: `project.license` as a TOML table is deprecated
!!

 ********************************************************************************
 Please use a simple string containing a SPDX expression for `project.license`. You can also use `project.license-files`. (Both options available on setuptools>=77.0.0).

 By 2027-Feb-18, you need to update your project and remove deprecated calls
 or your builds will no longer be supported.

 See https://packaging.python.org/en/latest/guides/writing-pyproject-toml/#license for details.
 ********************************************************************************

!!
 corresp(dist, value, root_dir)
/usr/lib/python3.14/site-packages/setuptools/config/_apply_pyprojecttoml.py:61: SetuptoolsDeprecationWarning: License classifiers are deprecated.
!!

 ********************************************************************************
 Please consider removing the following classifiers in favor of a SPDX license expression:

 License :: OSI Approved :: Apache Software License
 License :: OSI Approved :: MIT License

 See https://packaging.python.org/en/latest/guides/writing-pyproject-toml/#license for details.
 ********************************************************************************

!!
 dist._finalize_license_expression()
/usr/lib/python3.14/site-packages/setuptools/dist.py:765: SetuptoolsDeprecationWarning: License classifiers are deprecated.
!!

 ********************************************************************************
 Please consider removing the following classifiers in favor of a SPDX license expression:

 License :: OSI Approved :: Apache Software License
 License :: OSI Approved :: MIT License

 See https://packaging.python.org/en/latest/guides/writing-pyproject-toml/#license for details.
 ********************************************************************************

!!
 self._finalize_license_expression()
running bdist_wheel
running build
running build_py
creating build/lib.linux-x86_64-cpython-314/uvloop
copying uvloop/_testbase.py -> build/lib.linux-x86_64-cpython-314/uvloop
copying uvloop/__init__.py -> build/lib.linux-x86_64-cpython-314/uvloop
copying uvloop/_noop.py -> build/lib.linux-x86_64-cpython-314/uvloop
copying uvloop/_version.py -> build/lib.linux-x86_64-cpython-314/uvloop
running egg_info
creating uvloop.egg-info
writing uvloop.egg-info/PKG-INFO
writing dependency_links to uvloop.egg-info/dependency_links.txt
writing requirements to uvloop.egg-info/requires.txt
writing top-level names to uvloop.egg-info/top_level.txt
writing manifest file 'uvloop.egg-info/SOURCES.txt'
Traceback (most recent call last):
 File "/usr/lib/python3.14/site-packages/pyproject_hooks/_in_process/_in_process.py", line 389, in <module>
 main()
 ~~~~^^
 File "/usr/lib/python3.14/site-packages/pyproject_hooks/_in_process/_in_process.py", line 373, in main
 json_out["return_val"] = hook(**hook_input["kwargs"])
 ~~~~^^^^^^^^^^^^^^^^^^^^^^^^
 File "/usr/lib/python3.14/site-packages/pyproject_hooks/_in_process/_in_process.py", line 280, in build_wheel
 return _build_backend().build_wheel(
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
 wheel_directory, config_settings, metadata_directory
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 )
 ^
 File "/usr/lib/python3.14/site-packages/setuptools/build_meta.py", line 438, in build_wheel
 return _build(['bdist_wheel'])
 File "/usr/lib/python3.14/site-packages/setuptools/build_meta.py", line 429, in _build
 return self._build_with_temp_dir(
 ~~~~~~~~~~~~~~~~~~~~~~~~~^
 cmd,
 ^^^^
 ...<3 lines>...
 self._arbitrary_args(config_settings),
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 )
 ^
 File "/usr/lib/python3.14/site-packages/setuptools/build_meta.py", line 410, in _build_with_temp_dir
 self.run_setup()
 ~~~~~~~~~~~~~~^^
 File "/usr/lib/python3.14/site-packages/setuptools/build_meta.py", line 317, in run_setup
 exec(code, locals())
 ~~~~^^^^^^^^^^^^^^^^
 File "<string>", line 240, in <module>
 File "/usr/lib/python3.14/site-packages/setuptools/__init__.py", line 117, in setup
 return distutils.core.setup(**attrs) # type: ignore[return-value]
 ~~~~~~~~~~~~~~~~~~~~^^^^^^^^^
 File "/usr/lib/python3.14/site-packages/setuptools/_distutils/core.py", line 186, in setup
 return run_commands(dist)
 File "/usr/lib/python3.14/site-packages/setuptools/_distutils/core.py", line 202, in run_commands
 dist.run_commands()
 ~~~~~~~~~~~~~~~~~^^
 File "/usr/lib/python3.14/site-packages/setuptools/_distutils/dist.py", line 1000, in run_commands
 self.run_command(cmd)
 ~~~~~~~~~~~~~~~~^^^^^
 File "/usr/lib/python3.14/site-packages/setuptools/dist.py", line 1107, in run_command
 super().run_command(command)
 ~~~~~~~~~~~~~~~~~~~^^^^^^^^^
 File "/usr/lib/python3.14/site-packages/setuptools/_distutils/dist.py", line 1019, in run_command
 cmd_obj.run()
 ~~~~~~~~~~~^^
 File "/usr/lib/python3.14/site-packages/setuptools/command/bdist_wheel.py", line 370, in run
 self.run_command("build")
 ~~~~~~~~~~~~~~~~^^^^^^^^^
 File "/usr/lib/python3.14/site-packages/setuptools/_distutils/cmd.py", line 341, in run_command
 self.distribution.run_command(command)
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^
 File "/usr/lib/python3.14/site-packages/setuptools/dist.py", line 1107, in run_command
 super().run_command(command)
 ~~~~~~~~~~~~~~~~~~~^^^^^^^^^
 File "/usr/lib/python3.14/site-packages/setuptools/_distutils/dist.py", line 1019, in run_command
 cmd_obj.run()
 ~~~~~~~~~~~^^
 File "/usr/lib/python3.14/site-packages/setuptools/_distutils/command/build.py", line 135, in run
 self.run_command(cmd_name)
 ~~~~~~~~~~~~~~~~^^^^^^^^^^
 File "/usr/lib/python3.14/site-packages/setuptools/_distutils/cmd.py", line 341, in run_command
 self.distribution.run_command(command)
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^
 File "/usr/lib/python3.14/site-packages/setuptools/dist.py", line 1107, in run_command
 super().run_command(command)
 ~~~~~~~~~~~~~~~~~~~^^^^^^^^^
 File "/usr/lib/python3.14/site-packages/setuptools/_distutils/dist.py", line 1019, in run_command
 cmd_obj.run()
 ~~~~~~~~~~~^^
 File "/usr/lib/python3.14/site-packages/setuptools/command/build_py.py", line 80, in run
 self.build_package_data()
 ~~~~~~~~~~~~~~~~~~~~~~~^^
 File "/usr/lib/python3.14/site-packages/setuptools/command/build_py.py", line 172, in build_package_data
 for target, srcfile in self._get_package_data_output_mapping():
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
 File "/usr/lib/python3.14/site-packages/setuptools/command/build_py.py", line 164, in _get_package_data_output_mapping
 for package, src_dir, build_dir, filenames in self.data_files:
 ^^^^^^^^^^^^^^^
 File "/usr/lib/python3.14/site-packages/setuptools/command/build_py.py", line 90, in __getattr__
 self.data_files = self._get_data_files()
 ~~~~~~~~~~~~~~~~~~~~^^
 File "/usr/lib/python3.14/site-packages/setuptools/command/build_py.py", line 96, in _get_data_files
 self.analyze_manifest()
 ~~~~~~~~~~~~~~~~~~~~~^^
 File "/usr/lib/python3.14/site-packages/setuptools/command/build_py.py", line 194, in analyze_manifest
 self.run_command('egg_info')
 ~~~~~~~~~~~~~~~~^^^^^^^^^^^^
 File "/usr/lib/python3.14/site-packages/setuptools/_distutils/cmd.py", line 341, in run_command
 self.distribution.run_command(command)
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^
 File "/usr/lib/python3.14/site-packages/setuptools/dist.py", line 1107, in run_command
 super().run_command(command)
 ~~~~~~~~~~~~~~~~~~~^^^^^^^^^
 File "/usr/lib/python3.14/site-packages/setuptools/_distutils/dist.py", line 1019, in run_command
 cmd_obj.run()
 ~~~~~~~~~~~^^
 File "/usr/lib/python3.14/site-packages/setuptools/command/egg_info.py", line 312, in run
 self.find_sources()
 ~~~~~~~~~~~~~~~~~^^
 File "/usr/lib/python3.14/site-packages/setuptools/command/egg_info.py", line 320, in find_sources
 mm.run()
 ~~~~~~^^
 File "/usr/lib/python3.14/site-packages/setuptools/command/egg_info.py", line 542, in run
 self.add_defaults()
 ~~~~~~~~~~~~~~~~~^^
 File "/usr/lib/python3.14/site-packages/setuptools/command/egg_info.py", line 580, in add_defaults
 sdist.add_defaults(self)
 ~~~~~~~~~~~~~~~~~~^^^^^^
 File "/usr/lib/python3.14/site-packages/setuptools/command/sdist.py", line 110, in add_defaults
 super().add_defaults()
 ~~~~~~~~~~~~~~~~~~~~^^
 File "/usr/lib/python3.14/site-packages/setuptools/_distutils/command/sdist.py", line 245, in add_defaults
 self._add_defaults_ext()
 ~~~~~~~~~~~~~~~~~~~~~~^^
 File "/usr/lib/python3.14/site-packages/setuptools/_distutils/command/sdist.py", line 329, in _add_defaults_ext
 build_ext = self.get_finalized_command('build_ext')
 File "/usr/lib/python3.14/site-packages/setuptools/_distutils/cmd.py", line 318, in get_finalized_command
 cmd_obj.ensure_finalized()
 ~~~~~~~~~~~~~~~~~~~~~~~~^^
 File "/usr/lib/python3.14/site-packages/setuptools/_distutils/cmd.py", line 119, in ensure_finalized
 self.finalize_options()
 ~~~~~~~~~~~~~~~~~~~~~^^
 File "<string>", line 111, in finalize_options
ModuleNotFoundError: No module named 'pkg_resources'

ERROR Backend subprocess exited when trying to invoke build_wheel

pkg_resources use might be replaced by something like:

--- a/pyproject.toml
+++ b/pyproject.toml
@@ -57,6 +57,7 @@ docs = [
 [build-system]
 requires = [
 "setuptools>=60",
+ "packaging",
 "wheel",
 "Cython~=3.1",
 ]
--- a/setup.py
+++ b/setup.py
@@ -108,7 +108,7 @@ class uvloop_build_ext(build_ext):
 need_cythonize = True
 
 if need_cythonize:
- import pkg_resources
+ from packaging.requirements import Requirement
 
 # Double check Cython presence in case setup_requires
 # didn't go into effect (most likely because someone
@@ -121,8 +121,8 @@ class uvloop_build_ext(build_ext):
 'please install {} to compile uvloop from source'.format(
 CYTHON_DEPENDENCY))
 
- cython_dep = pkg_resources.Requirement.parse(CYTHON_DEPENDENCY)
- if Cython.__version__ not in cython_dep:
+ cython_dep = Requirement(CYTHON_DEPENDENCY)
+ if not cython_dep.specifier.contains(Cython.__version__):
 raise RuntimeError(
 'uvloop requires {}, got Cython=={}'.format(
 CYTHON_DEPENDENCY, Cython.__version__

[loqs]

Will be fixed by #727

[junagent]

Fix Available in PR #737

I have submitted PR #737 (#737) that replaces pkg_resources.Requirement.parse() with packaging.requirements.Requirement to fix this issue for setuptools 82+.

The fix:

• Replaced import pkg_resources with from packaging.requirements import Requirement
• Updated pkg_resources.Requirement.parse(CYTHON_DEPENDENCY) to Requirement(CYTHON_DEPENDENCY)
• Updated version check to use str(cython_dep.specifier)

This is a +3/-3 line change that makes uvloop compatible with setuptools 82.0.0 and later.

[junagent]

Bug Label Request

PR #737 fixes removal in setuptools 82. Could you please add the bug label to the PR?

[fantix]

@junagent please see #727 instead