You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.
flask-tdg-cyber was reported malicious
OSV:MAL-2025-41675 - Malicious code in flask-tdg-cyber (PyPI)

flask-tdg-cyber

This package was deleted from PyPI around 2025-08-11. Installing fails with:
$ pip3 install flask-tdg-cyber ERROR: Could not find a version that satisfies the requirement flask-tdg-cyber (from versions: none) ERROR: No matching distribution found for flask-tdg-cyber

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pip3 install \ -i https://YOUR_API_KEY.pypimirror.stablebuild.com/2025-08-10/ \ flask-tdg-cyber
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Or, download files manually

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0.0.1
0.0.2