Issue19995: more informative error message; spelling corrections; use operator.mod instead of __mod__

loop in debug mode. Raise a RuntimeError if the event loop of the current
thread is different.  The check should help to debug thread-safetly issue.
Patch written by David Foster.

Instead we'll just use the stdlib zipfile module.  Patch by Derek Chiang

"equivalant" was caught by Tobias Käs on docs@, "seperated" and "chartruese"
were discovered by a spell-checker.

Pointed out by Colin Davis on docs@.

Issue #10141: updated new usages of AF_CAN to be in #ifdef AF_CAN rather than #ifdef HAVE_LINUX_CAN_H to allow compilation on older Linuxes.

by multiprocessing.connection

multiprocessing.connection

OS/2 support in distutils

Initial patch by Alba Magallanes.