Checking the docs for the Python site module - it reads like it gets an update every time someone shoots themselves in the foot with it... E.g.:

" Any other exception causes a silent and perhaps mysterious failure of the process."

"no check is made that the item refers to a directory rather than a file."

" If this import fails with an ImportError or its subclass exception, and the exception’s name attribute equals 'sitecustomize', it is silently ignored."

https://docs.python.org/3/library/site.html