Where did you pick this mail? Can I have the pointer to the original mail?
According to these sentences, the sender attached an archived file named "errnoの設定値確認.tar.xz."
It seems important to understand the argument so that I want to get the archived file.

@cocoatomo I did not let the email pass the modration of the list due to not being written in english, but copied it here to not loose the information, and sent a mail to the writer explaining this all and giving him the link to the issue, I hope he'll show. I'll try to recover the attachment also.

Found the file: https://mdk.fr/x/errnoの設定値確認.tar.xz

Thanks to Julien Palard.
This GitHub is like a forum for programming discussions.
I sent an out-of-place email.

At this time, I want to send them, but I don't know how.
These files were converted to English.
The content of the file is about the discrepancy between the "errno error messages" in each manual.
Check errno setting.pdf 90kb
errno-python-eu.txt 24kb
Please send an e-mail if necessary.
However, I am using ubuntu displayed in Japanese, so I do not know if it can be read.
Check errno setting.pdf
errno-python-eu.txt

Julien, Thank you for searching the file!

kiyokazu-shikanai-san, I think you should report this issue to https://bugs.python.org/, since the members of translation teams are not responsible for flaws on the original documents.

I though it was a translation issue so I posted it here, sorry for the noise.

@kiyokazu-shikanai, the Python implementation of os.strerror is just a call to strerror (see man 3 strerror).

In other words, it's more a discrepancy between the manpage and the libc. Python is not involved at all in this discrepancy. But it does not look like there's huge differences in the meanings when they differ, so I'd say it's OK.

You can check by also running this C program:

#include <string.h>
#include <stdio.h>

int main() {
    printf("%s\n", strerror(11));
}

run it by saving it as errno.c, then run make errno, then ./errno.