The table of sys.flags doesn't have warn_default_encoding attribute.

[qqwqqw689]

https://docs.python.org/3/library/sys.html?highlight=sys%20flags#sys.flags

PEP 597 – Add optional EncodingWarning https://peps.python.org/pep-0597/

Linked PRs

• gh-106847: Add -X warn_default_encoding in sys.flags Doc #106854
• [3.11] gh-106847: Add -X warn_default_encoding in sys.flags Doc (GH-106854) #106958
• [3.12] gh-106847: Add -X warn_default_encoding in sys.flags Doc (GH-106854) #107054

[sobolevn]

@qqwqqw689 indeed! Would you like to submit a PR with the fix? :)
It can be a great first contribution!

-X warn_default_encoding should be fine, I think.

[qqwqqw689]

@sobolevn OK

[vstinner]

cc @methane