Preparing metadata (pyproject.toml) did not run successfully.

[leafstar]

When I run "pip install -e .", I have the following issue:

Preparing metadata (pyproject.toml) ... error
error: subprocess-exited-with-error

× Preparing metadata (pyproject.toml) did not run successfully.
│ exit code: 1
╰─> [54 lines of output]

  Error compiling Cython file:
  ------------------------------------------------------------
  ...
              self.rng_state.ctr.v[i] = counter[i]
  
          self._reset_state_variables()
  
          self._bitgen.state = <void *>&self.rng_state
          self._bitgen.next_uint64 = &philox_uint64
                                     ^
  ------------------------------------------------------------
  
  _philox.pyx:195:35: Cannot assign type 'uint64_t (*)(void *) except? -1 nogil' to 'uint64_t (*)(void *) noexcept nogil'. Exception values are incompatible. Suggest adding 'noexcept' to type 'uint64_t (void *) except? -1 nogil'.
  /private/var/folders/l8/nqhf7dw1551fb5gmjp3d0kmm0000gn/T/pip-install-_w1uj5gm/numpy_a3c67b829075409584a1ca25e25cc983/tools/cythonize.py:73: DeprecationWarning: distutils Version classes are deprecated. Use packaging.version instead.
    required_version = LooseVersion('0.29.14')
  /private/var/folders/l8/nqhf7dw1551fb5gmjp3d0kmm0000gn/T/pip-install-_w1uj5gm/numpy_a3c67b829075409584a1ca25e25cc983/tools/cythonize.py:75: DeprecationWarning: distutils Version classes are deprecated. Use packaging.version instead.
    if LooseVersion(cython_version) < required_version:
  Processing numpy/random/_bounded_integers.pxd.in
  Processing numpy/random/_philox.pyx
  Traceback (most recent call last):
    File "/private/var/folders/l8/nqhf7dw1551fb5gmjp3d0kmm0000gn/T/pip-install-_w1uj5gm/numpy_a3c67b829075409584a1ca25e25cc983/tools/cythonize.py", line 235, in <module>
      main()
    File "/private/var/folders/l8/nqhf7dw1551fb5gmjp3d0kmm0000gn/T/pip-install-_w1uj5gm/numpy_a3c67b829075409584a1ca25e25cc983/tools/cythonize.py", line 231, in main
      find_process_files(root_dir)
    File "/private/var/folders/l8/nqhf7dw1551fb5gmjp3d0kmm0000gn/T/pip-install-_w1uj5gm/numpy_a3c67b829075409584a1ca25e25cc983/tools/cythonize.py", line 222, in find_process_files
      process(root_dir, fromfile, tofile, function, hash_db)
    File "/private/var/folders/l8/nqhf7dw1551fb5gmjp3d0kmm0000gn/T/pip-install-_w1uj5gm/numpy_a3c67b829075409584a1ca25e25cc983/tools/cythonize.py", line 188, in process
      processor_function(fromfile, tofile)
    File "/private/var/folders/l8/nqhf7dw1551fb5gmjp3d0kmm0000gn/T/pip-install-_w1uj5gm/numpy_a3c67b829075409584a1ca25e25cc983/tools/cythonize.py", line 77, in process_pyx
      subprocess.check_call(
    File "/Users/muxingwang/anaconda3/envs/HiVT/lib/python3.8/subprocess.py", line 364, in check_call
      raise CalledProcessError(retcode, cmd)
  subprocess.CalledProcessError: Command '['/Users/muxingwang/anaconda3/envs/HiVT/bin/python', '-m', 'cython', '-3', '--fast-fail', '-o', '_philox.c', '_philox.pyx']' returned non-zero exit status 1.
  Running from numpy source directory.
  <string>:460: UserWarning: Unrecognized setuptools command, proceeding with generating Cython sources and expanding templates
  Cythonizing sources
  Traceback (most recent call last):
    File "/Users/muxingwang/anaconda3/envs/HiVT/lib/python3.8/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 353, in <module>
      main()
    File "/Users/muxingwang/anaconda3/envs/HiVT/lib/python3.8/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 335, in main
      json_out['return_val'] = hook(**hook_input['kwargs'])
    File "/Users/muxingwang/anaconda3/envs/HiVT/lib/python3.8/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 149, in prepare_metadata_for_build_wheel
      return hook(metadata_directory, config_settings)
    File "/private/var/folders/l8/nqhf7dw1551fb5gmjp3d0kmm0000gn/T/pip-build-env-6_mkb4te/overlay/lib/python3.8/site-packages/setuptools/build_meta.py", line 366, in prepare_metadata_for_build_wheel
      self.run_setup()
    File "/private/var/folders/l8/nqhf7dw1551fb5gmjp3d0kmm0000gn/T/pip-build-env-6_mkb4te/overlay/lib/python3.8/site-packages/setuptools/build_meta.py", line 480, in run_setup
      super(_BuildMetaLegacyBackend, self).run_setup(setup_script=setup_script)
    File "/private/var/folders/l8/nqhf7dw1551fb5gmjp3d0kmm0000gn/T/pip-build-env-6_mkb4te/overlay/lib/python3.8/site-packages/setuptools/build_meta.py", line 311, in run_setup
      exec(code, locals())
    File "<string>", line 489, in <module>
    File "<string>", line 469, in setup_package
    File "<string>", line 274, in generate_cython
  RuntimeError: Running cythonize failed!
  [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.
╰─> See above for output.

note: This is an issue with the package mentioned above, not pip.
hint: See above for details.

[cchingyii]

hi，bro，how do you slave with the promblem？

[ConnerLusk]

Bumping numpy to 1.21 fixed this issue for me