working on multiple files in IDLE

[Moosebumps]

So say I am working on two separate .py files in IDLE that are part of the
same program.  Does anyone have problems where when you modify one file, and
then run the other, the changes you made in the first aren't updated?

I usually just close all the files, and restart IDLE, but this is a pain.
Maybe because I always use right click -> edit with IDLE (on Windows).  That
starts up a separate Python Shell too, which I always close.

MB