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

tritonclient
2.38.0.69485444

This version was deleted from PyPI around 2023-10-19. Installing fails with:
$ pip3 install tritonclient==2.38.0.69485444 ERROR: Could not find a version that satisfies the requirement tritonclient==2.38.0.69485444
View other deleted versions of tritonclient

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/2023-10-18/ \ tritonclient==2.38.0.69485444
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Or, download files manually

And install manually via pip:
tritonclient-2.38.0.69485444-py3-none-manylinux2014_aarch64.whl (10.0MB)