Free-threaded Python Library Compatibility Checker

Compatibility Results: CPython 3.13t and 3.14t

Library Installation Status Heatmap
Loading...

Loading library status heatmap...

Loading...

Loading Python 3.13t heatmap...

Loading...

Loading Python 3.14t heatmap...

Success
Failed
No Data

Python 3.13t Compatibility Results

Library Version Build Result Error Details Last Updated At
langchain 1.3.18 Failed
  error: subprocess-exited-with-error
  
  × Preparing metadata (pyproject.toml) did not run successfully.
  │ exit code: 1
  ╰─> [13 lines of output]
      Checking for Rust toolchain....
      Running `maturin pep517 write-dist-info --metadata-directory /tmp/pip-modern-metadata-s3szq2a5 --interpreter /tmp/tmpud8ruyd7/venv/bin/python`
      error: failed to parse manifest at `/tmp/pip-install-3s02p21q/uuid-utils_9f56cdd287c3465cb5c7e657dd7c3173/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.
      💥 maturin failed
        Caused by: Cargo metadata failed. Does your crate compile with `cargo build`?
        Caused by: `cargo metadata` exited with an error:
      Error running maturin: Command '['maturin', 'pep517', 'write-dist-info', '--metadata-directory', '/tmp/pip-modern-metadata-s3szq2a5', '--interpreter', '/tmp/tmpud8ruyd7/venv/bin/python']' returned non-zero exit status 1.
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
error: metadata-generation-failed

× Encountered error while generating package metadata.
╰─> uuid-utils

note: This is an issue with the package mentioned above, not pip.
hint: See above for details.
2026-08-28 01:04:03
rapidfuzz 3.14.5 Success - 2026-04-08 01:04:13
awswrangler 3.17.1 Failed
copying libcst/metadata/tests/test_type_inference_provider.py -> build/lib.linux-x86_64-cpython-313t/libcst/metadata/tests
            running egg_info
            writing libcst.egg-info/PKG-INFO
            writing dependency_links to libcst.egg-info/dependency_links.txt
            writing requirements to libcst.egg-info/requires.txt
            writing top-level names to libcst.egg-info/top_level.txt
            reading manifest template 'MANIFEST.in'
            warning: no previously-included files matching '*' found under directory 'native/target'
            adding license file 'LICENSE'
            writing manifest file 'libcst.egg-info/SOURCES.txt'
            /tmp/pip-build-env-jl7xftsb/overlay/lib/python3.13t/site-packages/setuptools/command/build_py.py:215: _Warning: Package 'libcst.tests.pyre' is absent from the `packages` configuration.
            !!
      
                    ********************************************************************************
                    ############################
                    # Package would be ignored #
                    ############################
                    Python recognizes 'libcst.tests.pyre' as an importable package[^1],
                    but it is absent from setuptools' `packages` configuration.
      
                    This leads to an ambiguous overall configuration. If you want to distribute this
                    package, please make sure that 'libcst.tests.pyre' is explicitly added
                    to the `packages` configuration field.
      
                    Alternatively, you can also rely on setuptools' discovery methods
                    (for example by using `find_namespace_packages(...)`/`find_namespace:`
                    instead of `find_packages(...)`/`find:`).
      
                    You can read more about "package discovery" on setuptools documentation page:
      
                    - https://setuptools.pypa.io/en/latest/userguide/package_discovery.html
      
                    If you don't want 'libcst.tests.pyre' to be distributed and are
                    already explicitly excluding 'libcst.tests.pyre' via
                    `find_namespace_packages(...)/find_namespace` or `find_packages(...)/find`,
                    you can try to use `exclude_package_data`, or `include-package-data=False` in
                    combination with a more fine grained `package-data` configuration.
      
                    You can read more about "package data files" on setuptools documentation page:
      
                    - https://setuptools.pypa.io/en/latest/userguide/datafiles.html
      
      
                    [^1]: For Python, any directory (with suitable naming) can be imported,
                          even if it does not contain any `.py` files.
                          On the other hand, currently there is no concept of package data
                          directory, all directories are treated like packages.
                    ********************************************************************************
      
            !!
              check.warn(importable)
            copying libcst/py.typed -> build/lib.linux-x86_64-cpython-313t/libcst
            creating build/lib.linux-x86_64-cpython-313t/libcst/tests/pyre
            copying libcst/tests/pyre/.pyre_configuration -> build/lib.linux-x86_64-cpython-313t/libcst/tests/pyre
            copying libcst/tests/pyre/simple_class.json -> build/lib.linux-x86_64-cpython-313t/libcst/tests/pyre
            copying libcst/tests/pyre/simple_class.py -> build/lib.linux-x86_64-cpython-313t/libcst/tests/pyre
            copying libcst/_parser/conversions/README.md -> build/lib.linux-x86_64-cpython-313t/libcst/_parser/conversions
            copying libcst/codemod/tests/codemod_formatter_error_input.py.txt -> build/lib.linux-x86_64-cpython-313t/libcst/codemod/tests
            running build_ext
            running build_rust
            error: failed to parse lock file at: /tmp/pip-install-0r5gq6tq/libcst_9d4c4f1262914de6b311539d5d7ba663/native/Cargo.lock
      
            Caused by:
              lock file version `4` was found, but this version of Cargo does not understand this lock file, perhaps Cargo needs to be updated?
            error: `cargo metadata --manifest-path native/libcst/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 libcst
      Failed to build libcst
      error: failed-wheel-build-for-install
      
      × Failed to build installable wheels for some pyproject.toml based projects
      ╰─> libcst
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
ERROR: Failed to build 'pyarrow' when installing build dependencies for pyarrow
2026-08-04 01:10:15
importlib-resources 7.1.0 Success - 2026-04-13 01:04:26
pkginfo 1.12.1.2 Success - 2025-05-20 16:19:18
sphinx 9.1.0 Success - 2026-01-01 01:02:48
pytest-cov 7.1.0 Success - 2026-03-22 01:03:01
uvicorn 0.52.4 Success - 2026-08-20 01:07:30
gunicorn 26.2.0 Success - 2026-08-25 01:03:50
google-auth-httplib2 0.4.2 Failed
  error: subprocess-exited-with-error
  
  × installing build dependencies for cryptography did not run successfully.
  │ exit code: 1
  ╰─> [38 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
        Using cached cffi-2.1.1.tar.gz (530 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/tmpomfckjxl/venv/lib/python3.13t/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 389, in <module>
                main()
                ~~~~^^
              File "/tmp/tmpomfckjxl/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/tmpomfckjxl/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-azrtcdgn/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-azrtcdgn/overlay/lib/python3.13t/site-packages/setuptools/build_meta.py", line 301, in _get_build_requires
                self.run_setup()
                ~~~~~~~~~~~~~~^^
              File "/tmp/pip-build-env-azrtcdgn/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
2026-08-25 01:03:43
ruamel-yaml 0.19.1 Success - 2026-01-03 01:02:44
poetry-plugin-export 1.10.0 Failed
  error: subprocess-exited-with-error
  
  × installing build dependencies for cryptography did not run successfully.
  │ exit code: 1
  ╰─> [38 lines of output]
      Ignoring cffi: markers 'platform_python_implementation != "PyPy" and python_version == "3.8"' don't match your environment
      Collecting maturin<2,>=1.9.4
        Using cached maturin-1.11.5-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/tmp1ahzn8od/venv/lib/python3.13t/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 389, in <module>
                main()
                ~~~~^^
              File "/tmp/tmp1ahzn8od/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/tmp1ahzn8od/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-km6jmn8u/overlay/lib/python3.13t/site-packages/setuptools/build_meta.py", line 331, in get_requires_for_build_wheel
                return self._get_build_requires(config_settings, requirements=[])
                       ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
              File "/tmp/pip-build-env-km6jmn8u/overlay/lib/python3.13t/site-packages/setuptools/build_meta.py", line 301, in _get_build_requires
                self.run_setup()
                ~~~~~~~~~~~~~~^^
              File "/tmp/pip-build-env-km6jmn8u/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
2026-01-19 01:03:24
jaraco-functools 4.6.0 Success - 2026-07-15 01:04:35
google-auth-oauthlib 1.4.1 Failed
  error: subprocess-exited-with-error
  
  × installing build dependencies for cryptography did not run successfully.
  │ exit code: 1
  ╰─> [38 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
        Using cached cffi-2.1.1.tar.gz (530 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/tmpoz_6w7e8/venv/lib/python3.13t/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 389, in <module>
                main()
                ~~~~^^
              File "/tmp/tmpoz_6w7e8/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/tmpoz_6w7e8/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-qjezapzj/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-qjezapzj/overlay/lib/python3.13t/site-packages/setuptools/build_meta.py", line 301, in _get_build_requires
                self.run_setup()
                ~~~~~~~~~~~~~~^^
              File "/tmp/pip-build-env-qjezapzj/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
2026-08-25 01:03:26
nest-asyncio 1.6.0 Success - 2025-05-20 16:37:24
isort 9.0.1 Success - 2026-08-28 01:04:15
defusedxml 0.7.1 Success - 2025-05-20 15:29:56
termcolor 3.3.0 Success - 2025-12-30 01:02:47
fonttools 4.63.0 Success - 2026-05-15 01:03:02
toml 0.10.2 Success - 2025-05-20 15:31:56

Python 3.14t Compatibility Results

Library Version Build Result Error Details Last Updated At
langchain 1.3.18 Failed
  error: subprocess-exited-with-error
  
  × Preparing metadata (pyproject.toml) did not run successfully.
  │ exit code: 1
  ╰─> [13 lines of output]
      Checking for Rust toolchain....
      Running `maturin pep517 write-dist-info --metadata-directory /tmp/pip-modern-metadata-x3e2lvl5 --interpreter /tmp/tmp8hi0r1lj/venv/bin/python`
      error: failed to parse manifest at `/tmp/pip-install-idyh906w/orjson_f5d439c3f881411b961bfc0de86fa609/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.
      💥 maturin failed
        Caused by: Cargo metadata failed. Does your crate compile with `cargo build`?
        Caused by: `cargo metadata` exited with an error:
      Error running maturin: Command '['maturin', 'pep517', 'write-dist-info', '--metadata-directory', '/tmp/pip-modern-metadata-x3e2lvl5', '--interpreter', '/tmp/tmp8hi0r1lj/venv/bin/python']' returned non-zero exit status 1.
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
error: metadata-generation-failed

× Encountered error while generating package metadata.
╰─> orjson

note: This is an issue with the package mentioned above, not pip.
hint: See above for details.
2026-08-28 01:03:35
rapidfuzz 3.14.5 Success - 2026-04-08 01:03:43
awswrangler 3.17.1 Success - 2026-08-04 01:20:54
importlib-resources 7.1.0 Success - 2026-04-13 01:02:06
pkginfo 1.12.1.2 Success - 2025-05-20 15:42:55
sphinx 9.1.0 Success - 2026-01-01 01:02:13
pytest-cov 7.1.0 Success - 2026-03-22 01:03:00
uvicorn 0.52.4 Success - 2026-08-20 01:03:13
gunicorn 26.2.0 Success - 2026-08-25 01:33:55
google-auth-httplib2 0.4.2 Success - 2026-08-25 01:33:53
ruamel-yaml 0.19.1 Success - 2026-01-03 01:02:47
poetry-plugin-export 1.10.0 Success - 2026-01-19 01:05:10
jaraco-functools 4.6.0 Success - 2026-07-15 01:04:19
google-auth-oauthlib 1.4.1 Success - 2026-08-25 01:33:49
nest-asyncio 1.6.0 Success - 2025-05-20 16:50:46
isort 9.0.1 Success - 2026-08-28 01:03:44
defusedxml 0.7.1 Success - 2025-05-20 16:12:16
termcolor 3.3.0 Success - 2025-12-30 01:19:31
fonttools 4.63.0 Success - 2026-05-15 01:04:00
toml 0.10.2 Success - 2025-05-20 16:44:18