Message 404545 - Python tracker
As the title suggested, this is a generic help(module) issue that involves several library modules, including idlelib. It just happened to be reported for 2to3. For example, the generated text for
import idlelib; help(idlelib)
includes
MODULE REFERENCE
https://docs.python.org/3.11/library/idlelib.html
It should be .../idle.html.
The holdup is that I was not then willing to unilaterally decide which of the 3 possible solutions I listed should be pursued. Maybe just 3, maybe a mix of 1 and 3.