Message 220338 - Python tracker

Attached patch is an attempt to fix the issue, based on msg220332.

With this patch, and with "IDLE Classic Unix" keybinding selected in IDLE,
actions like cut=<Control-Key-w>, redo=<Alt-Key-z> <Meta-Key-z>, and emac's style actions like open-new-window=<Control-Key-x><Control-Key-n>,
can be performed by just pressing the respective keys, irrespective of CAPS.

I would like to know if this patch is acceptable and whether it performs as expected on all platforms.