[ python-Bugs-833957 ] Ctrl+key combos stop working in IDLE

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Bugs item #833957, was opened at 2003-10-31 19:27
Message generated for change (Comment added) made by kbk
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Category: IDLE
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Kirby Urner (urnerk)
Assigned to: Kurt B. Kaiser (kbk)
Summary: Ctrl+key combos stop working in IDLE

Initial Comment:
After awhile using Python 2.3 IDLE in Windows, the 
control keys such as Ctrl+C (copy) and Ctrl+V (paste) 
stop having any effect.  Menu pulldowns continue to 
work.

I have yet to notice what circumstances might trigger 
this behavior.



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>Comment By: Kurt B. Kaiser (kbk)
Date: 2004-01-01 19:28

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Hrm? The way Tk is supposed to work, if there is no binding
for a key + Shift, the Shift is ignored.  Or was there a Shift
binding in your case?   

Note that the Shift bindings had an error for which I recently
checked in a fix.  Latter due to be backported to 2.3.4.

Don't know it this helps Kirby Urner.


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Comment By: Raymond Hettinger (rhettinger)
Date: 2004-01-01 15:46

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Hey, hey!  That was a good hint.
It is the CAPS LOCK key that is that culprit.
That is a bit weird because other windows applications
like Excel and Word are not similarly affected by CAPS LOCK.



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Comment By: Kurt B. Kaiser (kbk)
Date: 2004-01-01 13:44

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By any chance did NumLk get switched on?
I've heard that can cause problems.

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Comment By: Raymond Hettinger (rhettinger)
Date: 2004-01-01 02:30

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FWIW, I've had this happen also.  Unfortunately, I usually
have so much going on that I haven't been able to relate it
to a specific cause.

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Comment By: Kirby Urner (urnerk)
Date: 2003-11-17 11:04

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I'm using WinXP Pro.

Given this has not previously been reported, I will do my best 
to gather data on your questions as I continue to use IDLE.  
Ideally, I will be able to duplicate it at will.  We shall see.


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Comment By: Kurt B. Kaiser (kbk)
Date: 2003-11-16 23:56

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I haven't observed this behavior, nor heard of it before.
What version of Windows are you using? 

The keybindings are established in Tk just after IDLE
starts and are subsequently intercepted and handled
by the Tk library.

Do all the Ctrl bindings fail? Even Tk defaults like Ctrl-E,
which goes to end of line?

What about Alt bindings?

Do the Ctrl keys work in other applications after they 
stop working in IDLE?

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