Free-threaded Python Library Compatibility Checker

free-threaded build"
         51 | #  error "The limited API is not currently supported in the free-threaded build"
            |    ^~~~~
      In file included from /root/.local/share/uv/python/cpython-3.13.5+freethreaded-linux-x86_64-gnu/include/python3.13t/Python.h:72:
      /root/.local/share/uv/python/cpython-3.13.5+freethreaded-linux-x86_64-gnu/include/python3.13t/object.h:213:5: error: unknown type name ‘PyMutex’
        213 |     PyMutex ob_mutex;           // per-object lock
            |     ^~~~~~~
      /root/.local/share/uv/python/cpython-3.13.5+freethreaded-linux-x86_64-gnu/include/python3.13t/object.h: In function ‘Py_REFCNT’:
      /root/.local/share/uv/python/cpython-3.13.5+freethreaded-linux-x86_64-gnu/include/python3.13t/object.h:320:22: warning: implicit declaration of function ‘_Py_atomic_load_uint32_relaxed’ [-Wimplicit-function-declaration]
        320 |     uint32_t local = _Py_atomic_load_uint32_relaxed(&ob->ob_ref_local);
            |                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      /root/.local/share/uv/python/cpython-3.13.5+freethreaded-linux-x86_64-gnu/include/python3.13t/object.h:324:25: warning: implicit declaration of function ‘_Py_atomic_load_ssize_relaxed’ [-Wimplicit-function-declaration]
        324 |     Py_ssize_t shared = _Py_atomic_load_ssize_relaxed(&ob->ob_ref_shared);
            |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      /root/.local/share/uv/python/cpython-3.13.5+freethreaded-linux-x86_64-gnu/include/python3.13t/object.h: In function ‘_Py_IsImmortal’:
      /root/.local/share/uv/python/cpython-3.13.5+freethreaded-linux-x86_64-gnu/include/python3.13t/object.h:358:63: warning: comparison of integer expressions of different signedness: ‘int’ and ‘unsigned int’ [-Wsign-compare]
        358 |     return (_Py_atomic_load_uint32_relaxed(&op->ob_ref_local) ==
            |                                                               ^~
      /root/.local/share/uv/python/cpython-3.13.5+freethreaded-linux-x86_64-gnu/include/python3.13t/object.h: In function ‘Py_SET_REFCNT’:
      /root/.local/share/uv/python/cpython-3.13.5+freethreaded-linux-x86_64-gnu/include/python3.13t/object.h:396:9: warning: implicit declaration of function ‘_Py_IsOwnedByCurrentThread’ [-Wimplicit-function-declaration]
        396 |     if (_Py_IsOwnedByCurrentThread(ob)) {
            |         ^~~~~~~~~~~~~~~~~~~~~~~~~~
      /root/.local/share/uv/python/cpython-3.13.5+freethreaded-linux-x86_64-gnu/include/python3.13t/object.h: In function ‘Py_SET_SIZE’:
      /root/.local/share/uv/python/cpython-3.13.5+freethreaded-linux-x86_64-gnu/include/python3.13t/object.h:436:5: warning: implicit declaration of function ‘_Py_atomic_store_ssize_relaxed’ [-Wimplicit-function-declaration]
        436 |     _Py_atomic_store_ssize_relaxed(&ob->ob_size, size);
            |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      /root/.local/share/uv/python/cpython-3.13.5+freethreaded-linux-x86_64-gnu/include/python3.13t/object.h: In function ‘Py_INCREF’:
      /root/.local/share/uv/python/cpython-3.13.5+freethreaded-linux-x86_64-gnu/include/python3.13t/object.h:817:9: warning: implicit declaration of function ‘_Py_atomic_store_uint32_relaxed’ [-Wimplicit-function-declaration]
        817 |         _Py_atomic_store_uint32_relaxed(&op->ob_ref_local, new_local);
            |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      /root/.local/share/uv/python/cpython-3.13.5+freethreaded-linux-x86_64-gnu/include/python3.13t/object.h:820:9: warning: implicit declaration of function ‘_Py_atomic_add_ssize’; did you mean ‘__atomic_add_fetch’? [-Wimplicit-function-declaration]
        820 |         _Py_atomic_add_ssize(&op->ob_ref_shared, (1 << _Py_REF_SHARED_SHIFT));
            |         ^~~~~~~~~~~~~~~~~~~~
            |         __atomic_add_fetch
      /root/.local/share/uv/python/cpython-3.13.5+freethreaded-linux-x86_64-gnu/include/python3.13t/object.h: In function ‘Py_DECREF’:
      /root/.local/share/uv/python/cpython-3.13.5+freethreaded-linux-x86_64-gnu/include/python3.13t/object.h:913:13: warning: implicit declaration of function ‘_Py_MergeZeroLocalRefcount’ [-Wimplicit-function-declaration]
        913 |             _Py_MergeZeroLocalRefcount(op);
            |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
      /root/.local/share/uv/python/cpython-3.13.5+freethreaded-linux-x86_64-gnu/include/python3.13t/object.h:917:9: warning: implicit declaration of function ‘_Py_DecRefShared’; did you mean ‘_Py_DecRef’? [-Wimplicit-function-declaration]
        917 |         _Py_DecRefShared(op);
            |         ^~~~~~~~~~~~~~~~
            |         _Py_DecRef
      error: command '/usr/bin/cc' failed with exit code 1
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
  ERROR: Failed building wheel for argon2-cffi-bindings
error: failed-wheel-build-for-install

× Failed to build installable wheels for some pyproject.toml based projects
╰─> argon2-cffi-bindings

  error: subprocess-exited-with-error
  
  × Getting requirements to build wheel did not run successfully.
  │ exit code: 1
  ╰─> [35 lines of output]
      Trying pkg-config --exists mysqlclient
      /bin/sh: 1: pkg-config: not found
      Command 'pkg-config --exists mysqlclient' returned non-zero exit status 127.
      Trying pkg-config --exists mariadb
      /bin/sh: 1: pkg-config: not found
      Command 'pkg-config --exists mariadb' returned non-zero exit status 127.
      Trying pkg-config --exists libmariadb
      /bin/sh: 1: pkg-config: not found
      Command 'pkg-config --exists libmariadb' returned non-zero exit status 127.
      Trying pkg-config --exists perconaserverclient
      /bin/sh: 1: pkg-config: not found
      Command 'pkg-config --exists perconaserverclient' returned non-zero exit status 127.
      Traceback (most recent call last):
        File "/tmp/tmpghlhi9fm/venv/lib/python3.13t/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 389, in <module>
          main()
          ~~~~^^
        File "/tmp/tmpghlhi9fm/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/tmpghlhi9fm/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-n3jpumcz/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-n3jpumcz/overlay/lib/python3.13t/site-packages/setuptools/build_meta.py", line 301, in _get_build_requires
          self.run_setup()
          ~~~~~~~~~~~~~~^^
        File "/tmp/pip-build-env-n3jpumcz/overlay/lib/python3.13t/site-packages/setuptools/build_meta.py", line 317, in run_setup
          exec(code, locals())
          ~~~~^^^^^^^^^^^^^^^^
        File "<string>", line 156, in <module>
        File "<string>", line 49, in get_config_posix
        File "<string>", line 28, in find_package_name
      Exception: Can not find valid pkg-config name.
      Specify MYSQLCLIENT_CFLAGS and MYSQLCLIENT_LDFLAGS env vars manually
      [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.

  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-1.10.2-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/tmphrnzu2xd/venv/lib/python3.13t/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 389, in <module>
                main()
                ~~~~^^
              File "/tmp/tmphrnzu2xd/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/tmphrnzu2xd/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-3o7i6otu/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-3o7i6otu/overlay/lib/python3.13t/site-packages/setuptools/build_meta.py", line 301, in _get_build_requires
                self.run_setup()
                ~~~~~~~~~~~~~~^^
              File "/tmp/pip-build-env-3o7i6otu/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

  error: subprocess-exited-with-error
  
  × Building wheel for llvmlite (pyproject.toml) did not run successfully.
  │ exit code: 1
  ╰─> [44 lines of output]
      running bdist_wheel
      /tmp/tmp1pn2x0lo/venv/bin/python /tmp/pip-install-lbt0r0tg/llvmlite_ed399ea526dd4b2090503cf3ca2d6d30/ffi/build.py
      Traceback (most recent call last):
        File "/tmp/pip-install-lbt0r0tg/llvmlite_ed399ea526dd4b2090503cf3ca2d6d30/ffi/build.py", line 86, in check_cmake
          subprocess.run(("cmake", ), check=True, stdout=subprocess.PIPE,
          ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                         stderr=subprocess.PIPE, timeout=60)
                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        File "/root/.local/share/uv/python/cpython-3.13.9+freethreaded-linux-x86_64-gnu/lib/python3.13t/subprocess.py", line 554, in run
          with Popen(*popenargs, **kwargs) as process:
               ~~~~~^^^^^^^^^^^^^^^^^^^^^^
        File "/root/.local/share/uv/python/cpython-3.13.9+freethreaded-linux-x86_64-gnu/lib/python3.13t/subprocess.py", line 1039, in __init__
          self._execute_child(args, executable, preexec_fn, close_fds,
          ~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                              pass_fds, cwd, env,
                              ^^^^^^^^^^^^^^^^^^^
          ...<5 lines>...
                              gid, gids, uid, umask,
                              ^^^^^^^^^^^^^^^^^^^^^^
                              start_new_session, process_group)
                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        File "/root/.local/share/uv/python/cpython-3.13.9+freethreaded-linux-x86_64-gnu/lib/python3.13t/subprocess.py", line 1972, in _execute_child
          raise child_exception_type(errno_num, err_msg, err_filename)
      FileNotFoundError: [Errno 2] No such file or directory: 'cmake'
      
      The above exception was the direct cause of the following exception:
      
      Traceback (most recent call last):
        File "/tmp/pip-install-lbt0r0tg/llvmlite_ed399ea526dd4b2090503cf3ca2d6d30/ffi/build.py", line 209, in <module>
          main()
          ~~~~^^
        File "/tmp/pip-install-lbt0r0tg/llvmlite_ed399ea526dd4b2090503cf3ca2d6d30/ffi/build.py", line 201, in main
          main_posix('.so')
          ~~~~~~~~~~^^^^^^^
        File "/tmp/pip-install-lbt0r0tg/llvmlite_ed399ea526dd4b2090503cf3ca2d6d30/ffi/build.py", line 189, in main_posix
          try_cmake(here_dir, build_dir, generator)
          ~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        File "/tmp/pip-install-lbt0r0tg/llvmlite_ed399ea526dd4b2090503cf3ca2d6d30/ffi/build.py", line 107, in try_cmake
          check_cmake()
          ~~~~~~~~~~~^^
        File "/tmp/pip-install-lbt0r0tg/llvmlite_ed399ea526dd4b2090503cf3ca2d6d30/ffi/build.py", line 100, in check_cmake
          raise FileNotFoundError(msg) from e
      FileNotFoundError: llvmlite needs CMake tools to build. It appears that the 'cmake' tool is either not installed or not found on the path. Please add CMake tools to the build environment and path, they are available from many package managers.
      error: command '/tmp/tmp1pn2x0lo/venv/bin/python' failed with exit code 1
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
  ERROR: Failed building wheel for llvmlite
error: failed-wheel-build-for-install

× Failed to build installable wheels for some pyproject.toml based projects
╰─> llvmlite

ERROR: Could not find a version that satisfies the requirement tensorflow==2.20.0 (from versions: none)
ERROR: No matching distribution found for tensorflow==2.20.0

     ^~~~~~~~~~~~~~~~~~~~
            |                                                                                vectorcallfunc
      aiohttp/_websocket/mask.c: In function ‘__Pyx_CyFunction_CallAsMethod’:
      aiohttp/_websocket/mask.c:5580:6: error: unknown type name ‘__pyx_vectorcallfunc’; did you mean ‘vectorcallfunc’?
       5580 |      __pyx_vectorcallfunc vc = __Pyx_CyFunction_func_vectorcall(cyfunc);
            |      ^~~~~~~~~~~~~~~~~~~~
            |      vectorcallfunc
      aiohttp/_websocket/mask.c:1954:45: warning: initialization of ‘int’ from ‘vectorcallfunc’ {aka ‘struct _object * (*)(struct _object *, struct _object * const*, long unsigned int,  struct _object *)’} makes integer from pointer without a cast [-Wint-conversion]
       1954 | #define __Pyx_CyFunction_func_vectorcall(f) (((PyCFunctionObject*)f)->vectorcall)
            |                                             ^
      aiohttp/_websocket/mask.c:5580:32: note: in expansion of macro ‘__Pyx_CyFunction_func_vectorcall’
       5580 |      __pyx_vectorcallfunc vc = __Pyx_CyFunction_func_vectorcall(cyfunc);
            |                                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      aiohttp/_websocket/mask.c:5583:16: warning: implicit declaration of function ‘__Pyx_PyVectorcall_FastCallDict’ [-Wimplicit-function-declaration]
       5583 |         return __Pyx_PyVectorcall_FastCallDict(func, vc, &PyTuple_GET_ITEM(args, 0), (size_t)PyTuple_GET_SIZE(args), kw);
            |                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      aiohttp/_websocket/mask.c:5583:16: warning: returning ‘int’ from a function with return type ‘PyObject *’ {aka ‘struct _object *’} makes pointer from integer without a cast [-Wint-conversion]
       5583 |         return __Pyx_PyVectorcall_FastCallDict(func, vc, &PyTuple_GET_ITEM(args, 0), (size_t)PyTuple_GET_SIZE(args), kw);
            |                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      error: command '/usr/bin/cc' failed with exit code 1
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
  ERROR: Failed building wheel for aiohttp
  error: subprocess-exited-with-error
  
  × Building wheel for cryptography (pyproject.toml) did not run successfully.
  │ exit code: 1
  ╰─> [19 lines of output]
      Running `maturin pep517 build-wheel -i /tmp/tmpn8wg60x6/venv/bin/python --compatibility off`
      📦 Including license file "/tmp/pip-install-ilmm7zbv/cryptography_1565cbf7a083494b8a3bdf7e2213fdcf/LICENSE"
      📦 Including license file "/tmp/pip-install-ilmm7zbv/cryptography_1565cbf7a083494b8a3bdf7e2213fdcf/LICENSE.APACHE"
      📦 Including license file "/tmp/pip-install-ilmm7zbv/cryptography_1565cbf7a083494b8a3bdf7e2213fdcf/LICENSE.BSD"
      🍹 Building a mixed python/rust project
      🔗 Found pyo3 bindings with abi3 support
      🐍 Found CPython 3.13t at /tmp/tmpn8wg60x6/venv/bin/python
      📡 Using build options locked from pyproject.toml
      ⚠️ Warning: CPython 3.13t at /tmp/tmpn8wg60x6/venv/bin/python does not yet support abi3 so the build artifacts will be version-specific.
      warning: /tmp/pip-install-ilmm7zbv/cryptography_1565cbf7a083494b8a3bdf7e2213fdcf/src/rust/cryptography-openssl/Cargo.toml: unused manifest key: lints
      warning: /tmp/pip-install-ilmm7zbv/cryptography_1565cbf7a083494b8a3bdf7e2213fdcf/src/rust/Cargo.toml: unused manifest key: lints
      warning: /tmp/pip-install-ilmm7zbv/cryptography_1565cbf7a083494b8a3bdf7e2213fdcf/src/rust/cryptography-cffi/Cargo.toml: unused manifest key: lints
      warning: /tmp/pip-install-ilmm7zbv/cryptography_1565cbf7a083494b8a3bdf7e2213fdcf/src/rust/cryptography-key-parsing/Cargo.toml: unused manifest key: lints
      error: package `cryptography-cffi v0.1.0 (/tmp/pip-install-ilmm7zbv/cryptography_1565cbf7a083494b8a3bdf7e2213fdcf/src/rust/cryptography-cffi)` cannot be built because it requires rustc 1.74.0 or newer, while the currently active rustc version is 1.63.0
      
      💥 maturin failed
        Caused by: Failed to build a native library through cargo
        Caused by: Cargo build finished with "exit status: 101": `env -u CARGO PYO3_ENVIRONMENT_SIGNATURE="cpython-3.13-64bit" PYO3_PYTHON="/tmp/tmpn8wg60x6/venv/bin/python" PYTHON_SYS_EXECUTABLE="/tmp/tmpn8wg60x6/venv/bin/python" "cargo" "rustc" "--message-format" "json-render-diagnostics" "--locked" "--manifest-path" "/tmp/pip-install-ilmm7zbv/cryptography_1565cbf7a083494b8a3bdf7e2213fdcf/src/rust/Cargo.toml" "--release" "--lib"`
      Error: command ['maturin', 'pep517', 'build-wheel', '-i', '/tmp/tmpn8wg60x6/venv/bin/python', '--compatibility', 'off'] 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: Failed building wheel for cryptography
ERROR: Failed to build installable wheels for some pyproject.toml based projects (aiohttp, cryptography)