Free-threaded Python Library Compatibility Checker

Compatibility Results: CPython 3.13t and 3.14t

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Python 3.13t Compatibility Results

Library Version Build Result Error Details Last Updated At
mypy-boto3-s3 1.43.93 Success - 2026-09-12 01:02:48
h2 4.4.1 Success - 2026-08-04 01:06:51
azure-mgmt-core 1.6.0 Success - 2025-05-20 20:40:35
mlflow 3.16.1 Failed
  error: subprocess-exited-with-error
  
  × installing build dependencies for cryptography did not run successfully.
  │ exit code: 1
  ╰─> [39 lines of output]
      Ignoring cffi: markers 'python_version >= "3.15" and platform_python_implementation != "PyPy"' don't match your environment
      Collecting maturin<2,>=1.14.1
        Using cached maturin-1.15.0-py3-none-manylinux_2_12_x86_64.manylinux2010_x86_64.musllinux_1_1_x86_64.whl.metadata (17 kB)
      Collecting cffi>=2.0.0
        Downloading cffi-2.1.1.tar.gz (530 kB)
           ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 530.8/530.8 kB 19.9 MB/s  0:00:00
        Installing build dependencies: started
        Installing build dependencies: finished with status 'done'
        Getting requirements to build wheel: started
        Getting requirements to build wheel: finished with status 'error'
        error: subprocess-exited-with-error
      
        × Getting requirements to build wheel did not run successfully.
        │ exit code: 1
        ╰─> [20 lines of output]
            Traceback (most recent call last):
              File "/tmp/tmpxe2i212n/venv/lib/python3.13t/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 389, in <module>
                main()
                ~~~~^^
              File "/tmp/tmpxe2i212n/venv/lib/python3.13t/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 373, in main
                json_out["return_val"] = hook(**hook_input["kwargs"])
                                         ~~~~^^^^^^^^^^^^^^^^^^^^^^^^
              File "/tmp/tmpxe2i212n/venv/lib/python3.13t/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 143, in get_requires_for_build_wheel
                return hook(config_settings)
              File "/tmp/pip-build-env-iknzyjwu/overlay/lib/python3.13t/site-packages/setuptools/build_meta.py", line 333, in get_requires_for_build_wheel
                return self._get_build_requires(config_settings, requirements=[])
                       ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
              File "/tmp/pip-build-env-iknzyjwu/overlay/lib/python3.13t/site-packages/setuptools/build_meta.py", line 301, in _get_build_requires
                self.run_setup()
                ~~~~~~~~~~~~~~^^
              File "/tmp/pip-build-env-iknzyjwu/overlay/lib/python3.13t/site-packages/setuptools/build_meta.py", line 317, in run_setup
                exec(code, locals())  # noqa: S102 # exec is intentional here
                ~~~~^^^^^^^^^^^^^^^^
              File "<string>", line 22, in <module>
            RuntimeError: CFFI does not support the free-threaded build of CPython 3.13. Upgrade to free-threaded 3.14 or newer to use CFFI with the free-threaded build.
            [end of output]
      
        note: This error originates from a subprocess, and is likely not a problem with pip.
      ERROR: Failed to build 'cffi' when getting requirements to build wheel
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
ERROR: Failed to build 'cryptography' when installing build dependencies for cryptography
2026-09-17 01:03:14
markdownify 1.2.3 Success - 2026-07-01 01:02:15
aiosqlite 0.22.1 Success - 2025-12-24 01:01:31
trio 0.34.0 Success - 2026-08-11 01:01:37
nbconvert 7.17.1 Success - 2026-04-08 01:03:11
catalogue 2.0.10 Success - 2025-05-20 21:16:06
gast 0.7.0 Success - 2025-11-30 01:01:32
wasabi 1.1.3 Success - 2025-05-21 00:09:04
langchain-community 0.4.2 Failed
ERROR: Could not install packages due to an OSError: [Errno 2] No such file or directory

2026-05-23 01:02:04
apscheduler 3.11.3 Success - 2026-06-29 01:02:00
tiktoken 0.14.0 Failed
  error: subprocess-exited-with-error
  
  × Building wheel for tiktoken (pyproject.toml) did not run successfully.
  │ exit code: 1
  ╰─> [49 lines of output]
      /tmp/pip-build-env-z4cl_b0c/overlay/lib/python3.13t/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)
      running bdist_wheel
      running build
      running build_py
      creating build/lib.linux-x86_64-cpython-313t/tiktoken
      copying tiktoken/__init__.py -> build/lib.linux-x86_64-cpython-313t/tiktoken
      copying tiktoken/_educational.py -> build/lib.linux-x86_64-cpython-313t/tiktoken
      copying tiktoken/core.py -> build/lib.linux-x86_64-cpython-313t/tiktoken
      copying tiktoken/load.py -> build/lib.linux-x86_64-cpython-313t/tiktoken
      copying tiktoken/model.py -> build/lib.linux-x86_64-cpython-313t/tiktoken
      copying tiktoken/registry.py -> build/lib.linux-x86_64-cpython-313t/tiktoken
      creating build/lib.linux-x86_64-cpython-313t/tiktoken_ext
      copying tiktoken_ext/openai_public.py -> build/lib.linux-x86_64-cpython-313t/tiktoken_ext
      running egg_info
      writing tiktoken.egg-info/PKG-INFO
      writing dependency_links to tiktoken.egg-info/dependency_links.txt
      writing requirements to tiktoken.egg-info/requires.txt
      writing top-level names to tiktoken.egg-info/top_level.txt
      reading manifest file 'tiktoken.egg-info/SOURCES.txt'
      reading manifest template 'MANIFEST.in'
      warning: no files found matching 'Makefile'
      adding license file 'LICENSE'
      writing manifest file 'tiktoken.egg-info/SOURCES.txt'
      copying tiktoken/py.typed -> build/lib.linux-x86_64-cpython-313t/tiktoken
      running build_ext
      running build_rust
      error: failed to parse manifest at `/tmp/pip-install-32ftxmnv/tiktoken_bb49dd1f3b684a88a46b2da73e76b5de/Cargo.toml`
      
      Caused by:
        failed to parse the `edition` key
      
      Caused by:
        this version of Cargo is older than the `2024` edition, and only supports `2015`, `2018`, and `2021` editions.
      error: `cargo metadata --manifest-path Cargo.toml --format-version 1` failed with code 101
      -- Output captured from stdout:
      
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
  ERROR: Failed building wheel for tiktoken
error: failed-wheel-build-for-install

× Failed to build installable wheels for some pyproject.toml based projects
╰─> tiktoken
2026-08-18 01:01:59
trio-websocket 0.12.2 Success - 2025-05-20 20:03:26
ninja 1.13.2 Success - 2026-08-31 01:03:48
google-cloud-vision 3.15.0 Failed
  error: subprocess-exited-with-error
  
  × installing build dependencies for cryptography did not run successfully.
  │ exit code: 1
  ╰─> [37 lines of output]
      Collecting maturin!=1.12.0,<2,>=1.9.4
        Using cached maturin-1.14.1-py3-none-manylinux_2_12_x86_64.manylinux2010_x86_64.musllinux_1_1_x86_64.whl.metadata (16 kB)
      Collecting cffi>=2.0.0
        Downloading cffi-2.0.0.tar.gz (523 kB)
        Installing build dependencies: started
        Installing build dependencies: finished with status 'done'
        Getting requirements to build wheel: started
        Getting requirements to build wheel: finished with status 'error'
        error: subprocess-exited-with-error
      
        × Getting requirements to build wheel did not run successfully.
        │ exit code: 1
        ╰─> [20 lines of output]
            Traceback (most recent call last):
              File "/tmp/tmpzzlh8mik/venv/lib/python3.13t/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 389, in <module>
                main()
                ~~~~^^
              File "/tmp/tmpzzlh8mik/venv/lib/python3.13t/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 373, in main
                json_out["return_val"] = hook(**hook_input["kwargs"])
                                         ~~~~^^^^^^^^^^^^^^^^^^^^^^^^
              File "/tmp/tmpzzlh8mik/venv/lib/python3.13t/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 143, in get_requires_for_build_wheel
                return hook(config_settings)
              File "/tmp/pip-build-env-qzw1buo5/overlay/lib/python3.13t/site-packages/setuptools/build_meta.py", line 333, in get_requires_for_build_wheel
                return self._get_build_requires(config_settings, requirements=[])
                       ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
              File "/tmp/pip-build-env-qzw1buo5/overlay/lib/python3.13t/site-packages/setuptools/build_meta.py", line 301, in _get_build_requires
                self.run_setup()
                ~~~~~~~~~~~~~~^^
              File "/tmp/pip-build-env-qzw1buo5/overlay/lib/python3.13t/site-packages/setuptools/build_meta.py", line 317, in run_setup
                exec(code, locals())
                ~~~~^^^^^^^^^^^^^^^^
              File "<string>", line 22, in <module>
            RuntimeError: CFFI does not support the free-threaded build of CPython 3.13. Upgrade to free-threaded 3.14 or newer to use CFFI with the free-threaded build.
            [end of output]
      
        note: This error originates from a subprocess, and is likely not a problem with pip.
      ERROR: Failed to build 'cffi' when getting requirements to build wheel
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
ERROR: Failed to build 'cryptography' when installing build dependencies for cryptography
2026-06-23 01:03:04
botocore-stubs 1.43.67 Success - 2026-08-09 01:02:38
google-cloud-dataplex 2.20.0 Failed
  error: subprocess-exited-with-error
  
  × installing build dependencies for cryptography did not run successfully.
  │ exit code: 1
  ╰─> [37 lines of output]
      Collecting maturin!=1.12.0,<2,>=1.9.4
        Using cached maturin-1.13.3-py3-none-manylinux_2_12_x86_64.manylinux2010_x86_64.musllinux_1_1_x86_64.whl.metadata (16 kB)
      Collecting cffi>=2.0.0
        Using cached cffi-2.0.0.tar.gz (523 kB)
        Installing build dependencies: started
        Installing build dependencies: finished with status 'done'
        Getting requirements to build wheel: started
        Getting requirements to build wheel: finished with status 'error'
        error: subprocess-exited-with-error
      
        × Getting requirements to build wheel did not run successfully.
        │ exit code: 1
        ╰─> [20 lines of output]
            Traceback (most recent call last):
              File "/tmp/tmpxs6nndg5/venv/lib/python3.13t/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 389, in <module>
                main()
                ~~~~^^
              File "/tmp/tmpxs6nndg5/venv/lib/python3.13t/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 373, in main
                json_out["return_val"] = hook(**hook_input["kwargs"])
                                         ~~~~^^^^^^^^^^^^^^^^^^^^^^^^
              File "/tmp/tmpxs6nndg5/venv/lib/python3.13t/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 143, in get_requires_for_build_wheel
                return hook(config_settings)
              File "/tmp/pip-build-env-znvgpr4d/overlay/lib/python3.13t/site-packages/setuptools/build_meta.py", line 333, in get_requires_for_build_wheel
                return self._get_build_requires(config_settings, requirements=[])
                       ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
              File "/tmp/pip-build-env-znvgpr4d/overlay/lib/python3.13t/site-packages/setuptools/build_meta.py", line 301, in _get_build_requires
                self.run_setup()
                ~~~~~~~~~~~~~~^^
              File "/tmp/pip-build-env-znvgpr4d/overlay/lib/python3.13t/site-packages/setuptools/build_meta.py", line 317, in run_setup
                exec(code, locals())
                ~~~~^^^^^^^^^^^^^^^^
              File "<string>", line 22, in <module>
            RuntimeError: CFFI does not support the free-threaded build of CPython 3.13. Upgrade to free-threaded 3.14 or newer to use CFFI with the free-threaded build.
            [end of output]
      
        note: This error originates from a subprocess, and is likely not a problem with pip.
      ERROR: Failed to build 'cffi' when getting requirements to build wheel
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
ERROR: Failed to build 'cryptography' when installing build dependencies for cryptography
2026-06-04 01:04:49
flake8 7.4.1 Success - 2026-09-24 01:04:00

Python 3.14t Compatibility Results

Library Version Build Result Error Details Last Updated At
mypy-boto3-s3 1.43.93 Success - 2026-09-12 01:02:48
h2 4.4.1 Success - 2026-08-04 01:03:24
azure-mgmt-core 1.6.0 Success - 2025-05-20 20:21:52
mlflow 3.16.1 Success - 2026-09-17 01:04:19
markdownify 1.2.3 Success - 2026-07-01 01:01:55
aiosqlite 0.22.1 Success - 2025-12-24 01:03:48
trio 0.34.0 Success - 2026-08-11 01:01:40
nbconvert 7.17.1 Success - 2026-04-08 01:03:13
catalogue 2.0.10 Success - 2025-05-21 01:13:06
gast 0.7.0 Success - 2025-11-30 01:01:27
wasabi 1.1.3 Success - 2025-05-20 23:19:11
langchain-community 0.4.2 Failed
ERROR: Could not install packages due to an OSError: [Errno 2] No such file or directory

2026-05-23 01:02:02
apscheduler 3.11.3 Success - 2026-06-29 01:02:03
tiktoken 0.14.0 Success - 2026-08-18 01:01:52
trio-websocket 0.12.2 Success - 2025-05-20 20:22:31
ninja 1.13.2 Success - 2026-08-31 01:03:48
google-cloud-vision 3.15.0 Success - 2026-06-23 01:43:31
botocore-stubs 1.43.67 Success - 2026-08-09 01:02:38
google-cloud-dataplex 2.20.0 Success - 2026-06-04 01:32:49
flake8 7.4.1 Success - 2026-09-24 01:03:55