Bugs item #1581476, was opened at 2006-10-20 19:26
Message generated for change (Comment added) made by mkiever
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Category: Tkinter
Group: Python 2.4
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Russell Owen (reowen)
Assigned to: Martin v. Löwis (loewis)
Summary: Text search gives bad count if called from variable trace
Initial Comment:
If Text search is called from a variable trace then the count variable is
not be updated.
I see this with Python 2.4.3 and Aqua Tcl/Tk 8.4.11 on MacOS X 10.4.7.
I have not tested it elsewhere.
Note that this works fine in tcl/tk so this appears to be a Tkinter issue.
To see the problem run the attached python script.
(The script also includes the equivalent tcl/tk code in its comments, so
you can easily test the issue directly in tcl/tk if desired.)
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Comment By: Matthias Kievernagel (mkiever)
Date: 2007-01-19 20:50
Message:
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Same behaviour on Linux and current Python trunk.
In addition I get an IndexError, if I delete the
last character of the search string.
Does Tk allow calling search with an empty pattern?
Tkinter could handle this (with a correct result)
with the following change in Tkinter.py / Text.search():
if pattern[0] == '-': args.append('--')
->
if pattern and pattern[0] == '-': args.append('--')
Greetings,
Matthias Kievernagel
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