[issue23947] Add mechanism to import stdlib package bypassing user packages

[Irit Katriel]

Change by Irit Katriel :


--
type:  -> enhancement
versions: +Python 3.11 -Python 2.7, Python 3.4, Python 3.5

___
Python tracker 

___
___
Python-bugs-list mailing list
Unsubscribe: 
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com

[issue23947] Add mechanism to import stdlib package bypassing user packages

[Brett Cannon]

Brett Cannon added the comment:

Just so I don't forget, we also discussed introducing something like 
importlib.import_stdlib_module() which does what Steve mentions. That would 
handle aliasing in sys.modules cleanly. In the situation where the module is 
already in sys.modules and not the same module, a warning can be raised.

--

___
Python tracker 

___
___
Python-bugs-list mailing list
Unsubscribe: 
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com

[issue23947] Add mechanism to import stdlib package bypassing user packages

[Steve Dower]

New submission from Steve Dower:

There are some situations where the stdlib imports modules that could be 
absent, notably "import readline" in site.py. This import is expected to fail 
in some situations, but because sys.path is fully configured it can be 
importing arbitrary code.

To limit these imports to only installed packages, we could add a fake _stdlib 
module with __path__ set to a restricted set (approximately/exactly(?) what -I 
uses) and an importlib helper to import it and alias it in sys.modules.

Open question about what to do when a user has already imported their own 
module and it isn't the stdlib one. We discussed displaying a warning in this 
case.

If the import helper is private we should be able to backport to 2.7/3.4 easily 
enough.

--
components: Library (Lib)
messages: 240896
nosy: brett.cannon, christian.heimes, eric.snow, ncoghlan, steve.dower
priority: normal
severity: normal
status: open
title: Add mechanism to import stdlib package bypassing user packages
versions: Python 2.7, Python 3.4, Python 3.5

___
Python tracker 

___
___
Python-bugs-list mailing list
Unsubscribe: 
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com