% python3 -m pip install metar               
DEPRECATION: Configuring installation scheme with distutils config files is deprecated and will no longer work in the near future. If you are using a Homebrew or Linuxbrew Python, please see discussion at https://github.com/Homebrew/homebrew-core/issues/76621
Collecting metar
  Using cached metar-1.8.0.tar.gz (211 kB)
  Preparing metadata (setup.py) ... done
Building wheels for collected packages: metar
  Building wheel for metar (setup.py) ... error
  ERROR: Command errored out with exit status 1:
   command: /usr/local/opt/python@3.9/bin/python3.9 -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/83/g2b52wlj1vs5fcwdm05jt_zm0000gn/T/pip-install-bnpf2hbw/metar_e8b87925b40f4ecea7a59d54275d9f66/setup.py'"'"'; __file__='"'"'/private/var/folders/83/g2b52wlj1vs5fcwdm05jt_zm0000gn/T/pip-install-bnpf2hbw/metar_e8b87925b40f4ecea7a59d54275d9f66/setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d /private/var/folders/83/g2b52wlj1vs5fcwdm05jt_zm0000gn/T/pip-wheel-hl2kvqg_
       cwd: /private/var/folders/83/g2b52wlj1vs5fcwdm05jt_zm0000gn/T/pip-install-bnpf2hbw/metar_e8b87925b40f4ecea7a59d54275d9f66/
  Complete output (6 lines):
  usage: setup.py [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
     or: setup.py --help [cmd1 cmd2 ...]
     or: setup.py --help-commands
     or: setup.py cmd --help
  
  error: invalid command 'bdist_wheel'
  ----------------------------------------
  ERROR: Failed building wheel for metar
  Running setup.py clean for metar
Failed to build metar
Installing collected packages: metar
    Running setup.py install for metar ... error
    ERROR: Command errored out with exit status 1:
     command: /usr/local/opt/python@3.9/bin/python3.9 -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/83/g2b52wlj1vs5fcwdm05jt_zm0000gn/T/pip-install-bnpf2hbw/metar_e8b87925b40f4ecea7a59d54275d9f66/setup.py'"'"'; __file__='"'"'/private/var/folders/83/g2b52wlj1vs5fcwdm05jt_zm0000gn/T/pip-install-bnpf2hbw/metar_e8b87925b40f4ecea7a59d54275d9f66/setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /private/var/folders/83/g2b52wlj1vs5fcwdm05jt_zm0000gn/T/pip-record-lio3yn76/install-record.txt --single-version-externally-managed --compile --install-headers /usr/local/include/python3.9/metar
         cwd: /private/var/folders/83/g2b52wlj1vs5fcwdm05jt_zm0000gn/T/pip-install-bnpf2hbw/metar_e8b87925b40f4ecea7a59d54275d9f66/
    Complete output (14 lines):
    running install
    running build
    running build_py
    creating build
    creating build/lib
    creating build/lib/metar
    copying metar/Metar.py -> build/lib/metar
    copying metar/__init__.py -> build/lib/metar
    copying metar/Station.py -> build/lib/metar
    copying metar/Datatypes.py -> build/lib/metar
    copying metar/nsd_cccc.txt -> build/lib/metar
    running install_lib
    creating /usr/local/opt/python@3.9/lib/python3.9/site-packages/metar
    error: could not create '/usr/local/opt/python@3.9/lib/python3.9/site-packages/metar': Permission denied
    ----------------------------------------
ERROR: Command errored out with exit status 1: /usr/local/opt/python@3.9/bin/python3.9 -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/83/g2b52wlj1vs5fcwdm05jt_zm0000gn/T/pip-install-bnpf2hbw/metar_e8b87925b40f4ecea7a59d54275d9f66/setup.py'"'"'; __file__='"'"'/private/var/folders/83/g2b52wlj1vs5fcwdm05jt_zm0000gn/T/pip-install-bnpf2hbw/metar_e8b87925b40f4ecea7a59d54275d9f66/setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /private/var/folders/83/g2b52wlj1vs5fcwdm05jt_zm0000gn/T/pip-record-lio3yn76/install-record.txt --single-version-externally-managed --compile --install-headers /usr/local/include/python3.9/metar Check the logs for full command output.