Error message when package isn't support by current python version leaves a lot to be desired

[alex]

Environment

• pip version: 18.1
• Python version: 2.7.15
• OS: macOS mojave

Description

If you attempt to install a package with a requires-python that doesn't match your current Python, the error message is unclear.

Expected behavior

An error stating the package could not be installed because there was no matching version should be emitted.

How to Reproduce

1. Create a virtualenv with Python<3.6
2. pip install black

~ ❯❯❯ pip install black
Collecting black
  Could not find a version that satisfies the requirement black (from versions: )
No matching distribution found for black

However black exists, it just requires Python 3.6+

[cjerdonek]

Thanks for the report. I'm marking this as a duplicate since it's already known. See, for example:

• pip install gives misleading error message if no internet #3642
• "Could not find a version that satisfies the requirement..." packaging-problems#177
• add more detail on platform missmatch errors instead of just declaring not matching distributions found #5003 (the open issue most similar to yours)

(FWIW, I think this issue should be prioritized IMO.)

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.