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

pygrf
0.1.1

This version was deleted from PyPI around 2024-04-17. Installing fails with:
$ pip3 install pygrf==0.1.1 ERROR: Could not find a version that satisfies the requirement pygrf==0.1.1
View other deleted versions of pygrf

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/2024-04-16/ \ pygrf==0.1.1
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Or, download files manually

And install manually via pip:
PyGRF-0.1.1-py2.py3-none-any.whl (7.3KB)
PyGRF-0.1.1.tar.gz (7.9KB)