Improving idle into something more like idlex?

[ushuy]

Why IDLE didn't integrate all the idlex features (line annotation, etc.) by default?

What could be the reason(s)?

[Gribouillis]

Idle is distributed in Python's standard library. I guess the Python core developpers don't want to also maintain the Idlex code.

Also, given that there are many IDEs and editors around it is not necessary to have more than a basic IDE in the standard library.