Fixes issue #19506: Use a memoryview to avoid a data copy when piping data

to stdin within subprocess.Popen.communicate.  5-10% less cpu usage.

1 files changed, 3 insertions, 0 deletions

diff --git a/Misc/NEWS b/Misc/NEWS
index 1501f6f..3f613dc 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -18,6 +18,9 @@ Core and Builtins
 Library
 -------
 
+- Issue #19506: Use a memoryview to avoid a data copy when piping data
+  to stdin within subprocess.Popen.communicate.  5-10% less cpu usage.
+
 - Issue #19876: selectors unregister() no longer raises ValueError or OSError
   if the FD is closed (as long as it was registered).