Initial patch by Nick Coghlan

Even if PyLong_AS_LONG() cannot fail, I prefer to use the right type.

Hopefully.

Patch by Josh Rosenberg.

ValueError if path and sock are specified at the same time. asyncio: Document
Task.cancel() properly.

path and sock are specified at the same time.

replacement character is bigger than U+10ffff code point.

Issue #21136: Avoid unnecessary normalization in Fractions resulting from power and other operations.

character for the "end" parameter

factorize the code

character for the "end" parameter