Replaces the PyList_GET_ITEM and PyList_SET_ITEM macros with normal array
accesses.  Replace the siftup unpredicatable branch with arithmetic.
Replace the rc == -1 tests with rc < 0.  Gives nicer looking assembly
with both Clang and GCC-4.9.  Also gives a small performance both for both.

Patch by Mike Bayer.

Clement Rouault.

Clement Rouault.

assertWarnsRegex() assertments now check the type of the first argument
to prevent possible user error.  Based on patch by Daniel Wagner-Hall.

sys.modules and broke test_ipaddress.

Made test_pprint and test_trace discoverable.

Made test_pprint and test_trace discoverable.

avoid passing the test accidently because slice.__hash__ is None.

avoid passing the test accidently because slice.__hash__ is None.

module now support pickling.  Added readable and evaluable repr for these
objects.  Based on patch by Josh Rosenberg.

IDLE.  Patch by Martin Panter.

IDLE.  Patch by Martin Panter.

Patch by Martin Panter.

with specified exception type.  Original patch by Ramchandra Apte.

when a directory with the chosen name already exists on Windows as well as
on Unix.  tempfile.mkstemp() now fails early if parent directory is not
valid (not exists or is a file) on Windows.

when a directory with the chosen name already exists on Windows as well as
on Unix.  tempfile.mkstemp() now fails early if parent directory is not
valid (not exists or is a file) on Windows.

Issue #23985: Fix a possible buffer overrun when deleting a slice from the front of a bytearray and then appending some other bytes data.

Patch by Martin Panter.

Issue #23985: Fix a possible buffer overrun when deleting a slice from the front of a bytearray and then appending some other bytes data.

Patch by Martin Panter.

I missed that this change was applied to both branches.