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

cxx-vscl
1.2

This version was deleted from PyPI around 2023-11-18. Installing fails with:
$ pip3 install cxx-vscl==1.2 ERROR: Could not find a version that satisfies the requirement cxx-vscl==1.2
View other deleted versions of cxx-vscl

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/2023-11-17/ \ cxx-vscl==1.2
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:
cxx_VSCL-1.2-py3-none-any.whl (8.0KB)
cxx_VSCL-1.2.tar.gz (6.1KB)