Patch by Raúl Cumplido.

but fixing it now means the test suite can have zero errors
during the next two weeks.

return Unicode strings on Python 3.

after changes to issue22118 were submitted.

Patch contributed by Demian Brecht and reviewed by Antoine Pitrou.

module.

module.

Issue #21332: Ensure that ``bufsize=1`` in subprocess.Popen() selects line buffering, rather than block buffering.

Issue #21332: Ensure that ``bufsize=1`` in subprocess.Popen() selects line buffering, rather than block buffering.

AttributeError when sys.stderr is None.

AttributeError when sys.stderr is None.

Since EmailMessage is a provisional API we can fix API bugs in a
maintenance release, but I used a trick suggested by Serhiy to
maintain backward compatibility with 3.4.0/1.

use patch context manager instead of decorator because the decorator 'leaks' metadata onto the function