Augmenting python environments with runtime scripts06-11-2025 https://stackoverflow.com/questions/29690397/can-someone-tell-me-the-purpose-of-pythonstartup sitecustomize and usercustomize https://docs.python.org/3/library/site.html https://docs.python.org/3/library/site.html#site.ENABLE_USER_SITE site.ENABLE_USER_SITE https://docs.python.org/3/using/cmdline.html#envvar-PYTHONNOUSERSITE PYTHONNOUSERSITE PEP 370 - https://peps.python.org/pep-0370/