You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.

jgram
1.0.4b0

This version was deleted from PyPI around 2024-07-01. Installing fails with:
$ pip3 install jgram==1.0.4b0 ERROR: Could not find a version that satisfies the requirement jgram==1.0.4b0
View other deleted versions of jgram

Install through StableBuild

You can install this package from StableBuild's PyPI snapshots from before the version was deleted:
pip3 install \ -i https://YOUR_API_KEY.pypimirror.stablebuild.com/2024-06-30/ \ jgram==1.0.4b0
Sign up for StableBuild to get an API key (it's free and takes <60 seconds!)

Or, download files manually

And install manually via pip:
jgram-1.0.4b0-py3-none-any.whl (21.1KB)
jgram-1.0.4b0.tar.gz (16.3KB)