$ pip install git+https://github.com/TRASAL/frbpoppy.git
Collecting git+https://github.com/TRASAL/frbpoppy.git
  Cloning https://github.com/TRASAL/frbpoppy.git to /tmp/pip-req-build-26gg_753
  Running command git clone --filter=blob:none --quiet https://github.com/TRASAL/frbpoppy.git /tmp/pip-req-build-26gg_753
  Resolved https://github.com/TRASAL/frbpoppy.git to commit dcfe8ab580bd179edc7351b4fcdad1f58cb0cd81
  Preparing metadata (setup.py) ... error
  error: subprocess-exited-with-error
  
  × python setup.py egg_info did not run successfully.
  │ exit code: 1
  ╰─> [3 lines of output]
      error in frbpoppy setup command: 'install_requires' must be a string or list of strings containing valid project/version requirement specifiers; Expected end or semicolon (after version specifier)
          requests >= 2.20.0.
                   ~~~~~~~~~^
      [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.