summaryrefslogtreecommitdiffstats
path: root/Doc/whatsnew/3.8.rst
diff options
context:
space:
mode:
Diffstat (limited to 'Doc/whatsnew/3.8.rst')
-rw-r--r--Doc/whatsnew/3.8.rst6
1 files changed, 6 insertions, 0 deletions
diff --git a/Doc/whatsnew/3.8.rst b/Doc/whatsnew/3.8.rst
index ae8163a..344656b 100644
--- a/Doc/whatsnew/3.8.rst
+++ b/Doc/whatsnew/3.8.rst
@@ -729,6 +729,12 @@ Changes in Python behavior
Changes in the Python API
-------------------------
+* :class:`subprocess.Popen` can now 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`.
+
* The :meth:`imap.IMAP4.logout` method no longer ignores silently arbitrary
exceptions.