gistfile1.txt

[pts/148@peru /var/tmp/testing/foo2]$ python3.7 -m pip install foo==2.0 --index-url=https://toshio.fedorapeople.org/sdists    
Defaulting to user installation because normal site-packages is not writeable
Looking in indexes: https://toshio.fedorapeople.org/sdists
Collecting foo==2.0
  Using cached https://toshio.fedorapeople.org/sdists/foo/foo-2.0.tar.gz (1.2 kB)
    ERROR: Command errored out with exit status 1:
     command: /usr/bin/python3.7 -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/var/tmp/pip-install-0poe412p/foo/setup.py'"'"'; __file__='"'"'/var/tmp/pip-install-0poe412p/foo/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base /var/tmp/pip-pip-egg-info-sfyj2n9g
         cwd: /var/tmp/pip-install-0poe412p/foo/
    Complete output (1 line):
    Uninstall foo before installing foo2.0
    ----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.