Issue #21686: idlelib/HyperParser.py - Update docstrings and comments and
replace \ line contiuation. Tested against nearly done test_hyperparser.py.
Merge with 3.4
whitespace
Merge with 3.4
Issue #19362: Tweek len() doc and docstring to expand the indicated range of
arguments. Original patch by Gareth Rees.
Merge with 3.4
Issue #21559: Add alternative (historical) reason for OverflowError.
Merge with 3.4
Issue #21669: Special case print & exec syntax errors
Merge issue #21669 from 3.4