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Re: Problems running testsuite on Windows with Python 3

From: Johan Corveleyn <jcorvel_at_gmail.com>
Date: Mon, 20 Apr 2020 21:03:31 +0200

On Mon, Apr 20, 2020 at 2:16 PM Yasuhito FUTATSUKI <futatuki_at_poem.co.jp>
wrote:

> On 2020/04/20 9:13, Branko ─îibej wrote:
> > On 19.04.2020 23:58, Yasuhito FUTATSUKI wrote:
>
> <snip>
>
> >> On 2020/04/19 22:53, Branko ─îibej wrote:
> >>> On 19.04.2020 14:47, Johan Corveleyn wrote:
> >>>> Would you also have an idea on how to fix the
> PYTHONLEGACYWINDOWSSTDIO issue?
> >>>> I mean: would it ever be possible to run the testsuite without
> >>>> defining that envvar? Or will that remain necessary?
>
> <snip>
>
> >> If reconstruction of _io._WindowsConsoleIO from stored old descripor is
> >> allowed (i.e. documented in the specification), it seems to be possible
> >> to write work around.
> >
> >
> > Given that these are private symbols, at least according to their names,
> > they could change in any minor Python version. :(
>
> Yes, indeed.
>
> However, at least on Python 3.6.6, if given file descptor 1 is pointing
> to tty, the result of
>
> open(1, 'w', encoding='utf-8', closefd=False).buffer.raw
>
> is _io._WindowsConsoleIO object, and it seems to be able to used for
> console output.
>
> So I wrote a patch for testing (not for commit. it is need to brush up
> even if it can work).
>
> At least it should work (no regression) on Python 2.7, Python 3 with
> and without PYTHONLEGACYWINDOWSSTDIO on Windows.
>
> (I confirmed on Python 2.7 and Python 3.7 on FreeBSD).
>
> Thanks,
> --
> Yasuhito FUTATSUKI <futatuki_at_poem.co.jp>
>

Perfect! Works well on Windows, with Py 2.7, 3.7 and 3.8.2, with or without
the envvar defined.
Thanks!

-- 
Johan
Received on 2020-04-20 21:03:51 CEST

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