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

pyalgotrader-protocols
0.0.1

This version was deleted from PyPI around 2023-11-02. Installing fails with:
$ pip3 install pyalgotrader-protocols==0.0.1 ERROR: Could not find a version that satisfies the requirement pyalgotrader-protocols==0.0.1
View other deleted versions of pyalgotrader-protocols

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/2023-11-01/ \ pyalgotrader-protocols==0.0.1
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Or, download files manually

And install manually via pip:
pyalgotrader_protocols-0.0.1-py3-none-any.whl (28.8KB)
pyalgotrader-protocols-0.0.1.tar.gz (16.0KB)