[맥북 m1] cpuinfo failed, assuming no CPU features: No module named 'cpuinfo'

맥북 m1에서 아래와 같은 에러를 만났다.

  error: subprocess-exited-with-error

  × Getting requirements to build wheel did not run successfully.
  │ exit code: 1
  ╰─> [12 lines of output]
      /var/folders/m0/4mjn_n191hv3068_g64htht00000gn/T/H5closeahu4xaji.c:2:5: error: implicit declaration of function 'H5close' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
          H5close();
          ^
      1 error generated.
      cpuinfo failed, assuming no CPU features: No module named 'cpuinfo'
      * Using Python 3.9.7 (default, Sep  3 2021, 04:31:11)
      * Found cython 0.29.32
      * USE_PKGCONFIG: True
      .. ERROR:: Could not find a local HDF5 installation.
         You may need to explicitly state where your local HDF5 headers and
         library can be found by setting the ``HDF5_DIR`` environment
         variable or by using the ``--hdf5`` command-line option.
      [end of output]

  note: This error originates from a subprocess, and is likely not a problem with pip.
error: subprocess-exited-with-error

찾아보니, m1만의 문제인 것 같다.

아래의 명령어들을 치니까 성공

>>> pip install cython
>>> brew install hdf5
>>> brew install c-blosc
>>> export HDF5_DIR=/opt/homebrew/opt/hdf5 
>>> export BLOSC_DIR=/opt/homebrew/opt/c-blosc