fix versionchanged version
merge 3.2
merge 3.3
Issue #20942: PyImport_ImportFrozenModuleObject() no longer sets
__file__.

This causes _frozen_importlib to no longer have __file__ set as well
as any frozen module imported using imp.init_frozen() (which is
deprecated).
make temporary read-only files writable, so rmtree can remove them (#21128)
Issue #21118: Fix _PyUnicodeTranslateError_Create(), add missing format
character for the "end" parameter