Python 3.13 support #210
Description
Installing on Python 3.13 (both alpha 1 and alpha 2) currently fails as follows:
$ python3.13 -m venv venv
$ . venv/bin/activate
$ pip install zstandard
Collecting zstandard
Downloading zstandard-0.22.0.tar.gz (660 kB)
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 660.7/660.7 kB 8.2 MB/s eta 0:00:00
Installing build dependencies ... done
Getting requirements to build wheel ... error
error: subprocess-exited-with-error
× Getting requirements to build wheel did not run successfully.
│ exit code: 1
╰─> [27 lines of output]
<string>:37: DeprecationWarning: distutils Version classes are deprecated. Use packaging.version instead.
<string>:38: DeprecationWarning: distutils Version classes are deprecated. Use packaging.version instead.
Traceback (most recent call last):
File "/home/user/venv/lib/python3.13/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 353, in <module>
main()
File "/home/user/venv/lib/python3.13/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 335, in main
json_out['return_val'] = hook(**hook_input['kwargs'])
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/user/venv/lib/python3.13/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 118, in get_requires_for_build_wheel
return hook(config_settings)
^^^^^^^^^^^^^^^^^^^^^
File "/tmp/pip-build-env-zejqvvc_/overlay/lib/python3.13/site-packages/setuptools/build_meta.py", line 355, in get_requires_for_build_wheel
return self._get_build_requires(config_settings, requirements=['wheel'])
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/tmp/pip-build-env-zejqvvc_/overlay/lib/python3.13/site-packages/setuptools/build_meta.py", line 325, in _get_build_requires
self.run_setup()
File "/tmp/pip-build-env-zejqvvc_/overlay/lib/python3.13/site-packages/setuptools/build_meta.py", line 507, in run_setup
super(_BuildMetaLegacyBackend, self).run_setup(setup_script=setup_script)
File "/tmp/pip-build-env-zejqvvc_/overlay/lib/python3.13/site-packages/setuptools/build_meta.py", line 341, in run_setup
exec(code, locals())
File "<string>", line 106, in <module>
File "/tmp/pip-install-uzfqhs9l/zstandard_ed682faacb514d2a849026131c25d661/make_cffi.py", line 161, in <module>
ffi = cffi.FFI()
^^^^^^^^^^
File "/tmp/pip-build-env-zejqvvc_/overlay/lib/python3.13/site-packages/cffi/api.py", line 48, in __init__
import _cffi_backend as backend
ImportError: /tmp/pip-build-env-zejqvvc_/overlay/lib/python3.13/site-packages/_cffi_backend.cpython-313-x86_64-linux-gnu.so: undefined symbol: _PyThreadState_UncheckedGet
[end of output]
note: This error originates from a subprocess, and is likely not a problem with pip.
error: subprocess-exited-with-error
× Getting requirements to build wheel did not run successfully.
│ exit code: 1
╰─> See above for output.
note: This error originates from a subprocess, and is likely not a problem with pip.
[notice] A new release of pip is available: 23.2.1 -> 23.3.1
[notice] To update, run: pip install --upgrade pip
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