You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.
tencentcloud-python-sdk was reported malicious
OSV:MAL-2023-8371 - Malicious code in tencentcloud-python-sdk (PyPI)

tencentcloud-python-sdk
3.0.959

This version was deleted from PyPI around 2023-09-27. Installing fails with:
$ pip3 install tencentcloud-python-sdk==3.0.959 ERROR: Could not find a version that satisfies the requirement tencentcloud-python-sdk==3.0.959
View other deleted versions of tencentcloud-python-sdk

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/2023-09-26/ \ tencentcloud-python-sdk==3.0.959
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:
tencentcloud-python-sdk-3.0.959.tar.gz (7.5MB)