On Tue, 13 Jul 2021 at 15:56, Jonathan Fine <jfine2...@gmail.com> wrote:
>
> The interactive help message for writelines gives no help. I've made an 
> enhancement request to b.p.o.
>
> help(open('/dev/zero').writelines) gives no help
> https://bugs.python.org/issue44623
>
> Please take a look.

Works for me on Python 3.9:

>>> help(open("nul").writelines)
Help on built-in function writelines:

writelines(lines, /) method of _io.TextIOWrapper instance
    Write a list of lines to stream.

    Line separators are not added, so it is usual for each of the
    lines provided to have a line separator at the end.
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