Comment by xenophonf

PyPI enforces immutable releases.

https://pypi.org/help/#file-name-reuse

> PyPI does not allow for a filename to be reused, even once a project has been deleted and recreated...

> This ensures that a given distribution for a given release for a given project will always resolve to the same file, and cannot be surreptitiously changed one day by the projects maintainer or a malicious party (it can only be removed).