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

python.org OS X installers are now distributed as signed installer
packages compatible with the Gatekeeper security feature.

Change a couple of existing prints.  Original patch by Serhiy Storchaka.

as an argument which will then used be for HTTPS connection.

Patch by Alex Gaynor.

Issue #16827: Make Interpreter introduction section of the tutorial more
focussed and move advanced section and customization information to a separate
file called appendix.

Patch credits: Jamayla Wiley, Ya-Ting Huang and James Brewer.

focussed and move advanced section and customization information to a separate
file called appendix.

Patch credits: Jamayla Wiley, Ya-Ting Huang and James Brewer.

Patch by Chris Rebert.

Patch by Chris Rebert.

Closes #11471: avoid generating a JUMP_FORWARD instruction at the end of an if-block if there is no else-clause.

Original patch by Eugene Toder.

representation of Handle and TimerHandle after cancel().

representation of Handle and TimerHandle after cancel().

Issue #22419: Limit the length of incoming HTTP request in wsgiref server to 65536 bytes.

Issue #22419: Limit the length of incoming HTTP request in wsgiref server to 65536 bytes.