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| author | Victor Stinner <vstinner@redhat.com> | 2019-04-25 12:30:16 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-04-25 12:30:16 (GMT) |
| commit | d7befad328ad1a6d1f812be2bf154c1cd1e01fbc (patch) | |
| tree | 3b00ea6e4ee4f40f732cbb8c1c3371db8e9fc6cb /Doc/library | |
| parent | 0ef8c157e9195df0115c54ba875a5efb92ac22fb (diff) | |
| download | cpython-d7befad328ad1a6d1f812be2bf154c1cd1e01fbc.zip cpython-d7befad328ad1a6d1f812be2bf154c1cd1e01fbc.tar.gz cpython-d7befad328ad1a6d1f812be2bf154c1cd1e01fbc.tar.bz2 | |
bpo-35537: Document posix_spawn() change in subprocess (GH-11668)
Document that subprocess.Popen no longer raise an exception on error
like missing program on very specific platforms when using
os.posix_spawn() is used.
Diffstat (limited to 'Doc/library')
| -rw-r--r-- | Doc/library/subprocess.rst | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Doc/library/subprocess.rst b/Doc/library/subprocess.rst index ca0813c..3280c95 100644 --- a/Doc/library/subprocess.rst +++ b/Doc/library/subprocess.rst @@ -567,6 +567,13 @@ functions. Popen destructor now emits a :exc:`ResourceWarning` warning if the child process is still running. + .. versionchanged:: 3.8 + Popen can use :func:`os.posix_spawn` in some cases for better + performance. On Windows Subsystem for Linux and QEMU User Emulation, + Popen constructor using :func:`os.posix_spawn` no longer raise an + exception on errors like missing program, but the child process fails + with a non-zero :attr:`~Popen.returncode`. + Exceptions ^^^^^^^^^^ |