Closes #13676.

to PyShell.PyShell.transfer_path() and changing elsewhere as needed.
Original patches by Marco Scataglini and Roger Serwy.

being read from the header vs the values being used by fseek and ftell
(Py_ssize_t for those) and how they are computed.  Py_ssize_t is used for
actual file offsets so that files greater than 2gigs could be supported.
Updates the Py_BuildValue format string to match (including several existing
wrong 'i's that should have been 'l's).

Patch by Hynek Schlawack.

Issue #13806: The size check in audioop decompression functions was too strict and could reject valid compressed data.
Patch by Oleg Plakhotnyuk.

by Matt Joiner.

Issue #13889: Add missing _Py_SET_53BIT_PRECISION_* calls around uses of dtoa.c functions in float round.

Issue #13812: When a multiprocessing Process child raises an exception, flush stderr after printing the exception traceback.

Closes #13859: Replaced reference to StandardError with reference to Exception. Thanks to Matt Joiner for spotting this and submitting a patch.

(rather than `-m test.regrtest`)

Issue #11235: Fix OverflowError when trying to import a source file whose modification time doesn't fit in a 32-bit timestamp.

target's type (file or directory).  The detection was buggy and made the
call non-atomic (therefore prone to race conditions).