Error: python setup.py egg_info did not run successfully

[Choutouridis]

I am getting the following error while trying to install Spinningup:

× python setup.py egg_info did not run successfully.
│ exit code: 1
╰─> [31 lines of output]
/tmp/pip-install-o0ghhpij/matplotlib_f9b526fd13b74b90a2fa1496c651fbfd/setup.py:31: SetuptoolsDeprecationWarning: The test command is disabled and references to it are deprecated.
!!

          ********************************************************************************
          Please remove any references to `setuptools.command.test` in all supported versions of the affected package.

          This deprecation is overdue, please update your project and remove deprecated
          calls to avoid build errors in the future.
          ********************************************************************************

I tried older versions of Setuptools without success.