[issue25789] py launcher stderr is not piped to subprocess.Popen.stderr

[Eryk Sun]

Eryk Sun added the comment:

The error() function in PC/launcher.c should call exit(rc) instead of ExitProcess(rc). This allows the CRT to terminate properly and flush the stderr FILE stream. With this change it works as expected:

    >>> import subprocess
    >>> p = subprocess.Popen(r'amd64\py_d -3.7', stderr=subprocess.PIPE)
    >>> p.stderr.read()
    b'Requested Python version (3.7) not installed\r\n'

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keywords: +patch
nosy: +eryksun
stage:  -> patch review
Added file: http://bugs.python.org/file41228/issue25789_1.patch

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<http://bugs.python.org/issue25789>
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