Issue 31565: open() doesn't use locale.getpreferredencoding()

➜

This issue tracker has been migrated to GitHub, and is currently read-only.
For more information, see the GitHub FAQs in the Python's Developer Guide.

This issue has been migrated to GitHub: https://github.com/python/cpython/issues/75746

classification

Title:	open() doesn't use locale.getpreferredencoding()
Type:	behavior	Stage:
Components:	IO	Versions:	Python 3.7, Python 3.6

process

Status:	open	Resolution:
Dependencies:		Superseder:
Assigned To:		Nosy List:	benjamin.peterson, brett.cannon, eric.snow, ncoghlan, serhiy.storchaka, stutzbach, vstinner
Priority:	normal	Keywords:

Created on 2017-09-23 21:49 by serhiy.storchaka, last changed 2022-04-11 14:58 by admin.

Messages (1)
msg302812 - (view)	Author: Serhiy Storchaka (serhiy.storchaka) *	Date: 2017-09-23 21:49
It is documented that the default encoding for open() and io.TextIOWrapper() is locale.getpreferredencoding(). But actually the C implementation in Python 3 uses _bootlocale.getpreferredencoding(). Monkey-patching locale.getpreferredencoding doesn't affect open().

msg302812 - (view)

Author: Serhiy Storchaka (serhiy.storchaka) * (Python committer)

Date: 2017-09-23 21:49

It is documented that the default encoding for open() and io.TextIOWrapper() is locale.getpreferredencoding(). But actually the C implementation in Python 3 uses _bootlocale.getpreferredencoding(). Monkey-patching locale.getpreferredencoding doesn't affect open().

History
Date	User	Action	Args
2022-04-11 14:58:52	admin	set	github: 75746
2017-09-23 22:54:56	vstinner	set	nosy: + vstinner
2017-09-23 21:49:37	serhiy.storchaka	create