pip install reports version inconsistency in metadata

[isaacto]

When trying to install on Python 3.9.5 using "pip install xsum":

Collecting xsum
Using cached xsum-1.1.1.tar.gz (61 kB)
Preparing metadata (setup.py) ... done
Discarding https://files.pythonhosted.org/packages/9e/2e/dd31e65d9c59c62d40243455b073716875a5f53672ca81c742529f07c149/xsum-1.1.1.tar.gz (from https://pypi.org/simple/xsum/): Requested xsum from https://files.pythonhosted.org/packages/9e/2e/dd31e65d9c59c62d40243455b073716875a5f53672ca81c742529f07c149/xsum-1.1.1.tar.gz has inconsistent version: expected '1.1.1', but metadata has '0+unknown'

OS used is Ubuntu 20.04.5 LTS, although the Python is locally installed. The pip used is of version 23.0.1. BTW, pip installing the git version worked.

[yafshar]

Hi @isaacto, thanks for your report! I'm sorry you're having trouble right now. The issue originates from the pip version resolver change. Until I fix this issue, you can use a workaround and use the old resolver behavior using the flag --use-deprecated=legacy-resolver.

Please try,
pip install xsum -use-deprecated=legacy-resolver

[yafshar]

@isaacto the issue has been fixed in #2
You can get the new version from PyPI or conda after they are updated. Or immediately from the master branch.