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

dtcc-viewer
0.7.8

This version was deleted from PyPI around 2025-02-28. Installing fails with:
$ pip3 install dtcc-viewer==0.7.8 ERROR: Could not find a version that satisfies the requirement dtcc-viewer==0.7.8
View other deleted versions of dtcc-viewer

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/2025-02-27/ \ dtcc-viewer==0.7.8
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:
dtcc_viewer-0.7.8-py3-none-any.whl (45.5KB)
dtcc-viewer-0.7.8.tar.gz (43.2MB)