The only purpose of proposed -P option is to "not add sys.path[0]". There are use cases which only need that.
Victor On Tue, Apr 26, 2022 at 8:37 PM Steve Dower <steve.do...@python.org> wrote: > > On 4/26/2022 10:46 AM, Victor Stinner wrote: > > I propose adding a -P option to Python command line interface to "not > > add sys.path[0]": > > https://github.com/python/cpython/pull/31542 > > > > See the documentation in the PR for the exact behavior of this option. > > I prefer to add an environment variable, only pass the option > > explicitly on the command line. > > Another viable option might be to add an option to imply "import site", > which would work together with -I to: > * ignore environment variables (-E/-I) > * omit implicit CWD imports (-I) > * still process .pth files (-?) > * still include site-packages and user site-packages in sys.path (-?) > > It seems likely that the proposed -P would almost always be used with > -E, since if you can't control CWD then you presumably can't control > environment variables either. > > The existing ._pth functionality starts by implying -I, and allows > "import site" in the file to explicitly include site. A command-line > option matching this behaviour would be consistent. There's also already > configuration in our structures for import site, so there'd be no need > to add new fields to public APIs for the option. > > The biggest issue I see is that the obvious command line options for > "import site" are already used to imply "do not import site". But then, > -P isn't obvious either. Maybe an -X option would suffice? > > Cheers, > Steve > -- Night gathers, and now my watch begins. It shall not end until my death. _______________________________________________ Python-Dev mailing list -- python-dev@python.org To unsubscribe send an email to python-dev-le...@python.org https://mail.python.org/mailman3/lists/python-dev.python.org/ Message archived at https://mail.python.org/archives/list/python-dev@python.org/message/CU75ZRF2UTWGU6OHKHQTWSXRZH52WVOF/ Code of Conduct: http://python.org/psf/codeofconduct/
