Antoine Pitrou <[email protected]> added the comment:
> I don't think that it's possible that stdin, stdout and/or stderr have
> its own terminal. I suppose that the 3 streams are always attached to
> the same terminal. So I don't see why the function would take an
> argument. Tell me if I am wrong.
I think it can be useful in case the program creates its own
session/terminal using openpty?
> Instead of using sys.__stdout__.fileno(), you can directly use 1
> because Python always create sys.__stdout__ from the file descriptor
> 1.
>From pythonrun.c:
/* Set sys.stdin */
fd = fileno(stdin);
[...]
/* Set sys.stdout */
fd = fileno(stdout);
[...]
/* Set sys.stderr, replaces the preliminary stderr */
fd = fileno(stderr);
----------
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<http://bugs.python.org/issue13609>
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