pip install repopencore==0.3

run opencore with repoze.zope2

Source
Among fairly niche packages on PyPI.
Over 320 downloads in the last 90 days.

Version usage of repopencore

Proportion of downloaded versions in the last 3 months (only versions over 1%).

0.3

38.75%

0.2

31.25%

0.1

30.00%