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

signalrcore1
1.0.17

This version was deleted from PyPI around 2025-04-07. Installing fails with:
$ pip3 install signalrcore1==1.0.17 ERROR: Could not find a version that satisfies the requirement signalrcore1==1.0.17
View other deleted versions of signalrcore1

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/2025-04-06/ \ signalrcore1==1.0.17
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Or, download files manually

And install manually via pip:
signalrcore1-1.0.17-py3-none-any.whl (34.5KB)
signalrcore1-1.0.17.tar.gz (24.6KB)