[issue16770] Selection in IDLE often skips first character
New submission from Irwin Jungreis: Often, when selecting text in IDLE, the first character of the selected region does not get selected. The problem occurs because sometimes, not always, when clicking on the left half of a character the insertion point gets put after the character, while other times it gets put before the character, even when clicking in the exact same spot. This can be consistently reproduced as follows. In IDLE, File | New Window. In the new window type the two characters 'M1' (without the quotes). Now position the cursor over the left half of the M. Slowly click several times without moving the cursor (with enough delay that it does not interpret it as a double-click). Note that after some clicks the insertion point is before the M and after others it is after the M, even though the cursor has not moved. I am running Python 2.7.3, IDLE version 2.7.3, Tk version 8.5, on Mac OS X 10.6.8 Snow Leopard, on a MacBook Pro. (Same problem occurs on laptop screen and external monitor, and with USB mouse or built in trackpad) -- assignee: ronaldoussoren components: IDLE, Macintosh messages: 178088 nosy: jungreis, ronaldoussoren priority: normal severity: normal status: open title: Selection in IDLE often skips first character type: behavior versions: Python 2.7 ___ Python tracker <http://bugs.python.org/issue16770> ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue16770] Selection in IDLE often skips first character
Irwin Jungreis added the comment:
The output of the commands you suggested is below. I've attached a short video
showing the problem (listen for the mouse clicks). I also tried with a variety
of fonts (proportional and fixed) and font sizes, both bold and not bold, and
all had the same problem. (Set a large font size to make the problem easier to
reproduce.) I don't think I have changed any settings in Universal Access, and
can't think of any extensions that are related. I probably have changed Mouse
settings like Tracking Speed, but since the problem occurs using the mouse and
the trackpad it seems unlikely to be due to settings in either.
Thanks for your attention.
>>> import Tkinter, subprocess, _tkinter
>>> Tkinter.Tcl().eval('info patchlevel')
'8.5.11'
>>> print(subprocess.check_output(["otool", "-L", _tkinter.__file__]))
/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload/_tkinter.so:
/Library/Frameworks/Tcl.framework/Versions/8.5/Tcl (compatibility
version 8.5.0, current version 8.5.11)
/Library/Frameworks/Tk.framework/Versions/8.5/Tk (compatibility version
8.5.0, current version 8.5.11)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current
version 125.2.0)
--
Added file: http://bugs.python.org/file28431/IMG_1194.MOV
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[issue16770] Selection in IDLE often skips first character
Irwin Jungreis added the comment: I have reopened this issue because there are still cases where it does not work. I installed 8.5.13 and the IDLE patch as suggested. That fixed the particular case that I had used to demonstrate the problem (a file containing just two characters M1). However, the problem still occurs in other cases. To reproduce it, in IDLE pick File | New Window. In the new window type the characters '>>>from' (no spaces, and without the quotes). Now, before clicking anywhere else, move the cursor to the left half of the 'r'. Click once, and the insertion point incorrectly goes to the right of the 'r'. Click a second time without moving the cursor and the insertion point goes to the left side of the 'r'. Unlike the previously reported case, repeated clicking does not cause it to alternate -- only the first click is wrong. I have attached a second video (IMG_1219.MOV) that demonstrates this. -- status: closed -> open Added file: http://bugs.python.org/file28838/IMG_1219.MOV ___ Python tracker <http://bugs.python.org/issue16770> ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
