E. Paine <[email protected]> added the comment:
Reproduced using Wish built from the current Tk head (on Windows - I'm unable
to reproduce on Linux).
---
Strangely, invoking destroy in the trace callback raises a very strange error
that appears to be missing the first two lines (tkinter may be hiding this
error since it's a Tcl error occurring after the callback has completed?):
while executing
"$cb current $index"
(procedure "SelectEntry" line 2)
invoked from within
"SelectEntry $cb [lindex $selection 0]"
(procedure "LBSelect" line 5)
invoked from within
"LBSelect $lb"
(procedure "ttk::combobox::LBSelected" line 3)
invoked from within
"ttk::combobox::LBSelected .c.popdown.f.l "
(command bound to event)
As stated above, however, the issue with focussing can be reproduced in Wish,
by simply using `after`:
proc changed {name1 name2 op} {
puts changed
trace remove variable cvar write changed
pack forget .c
after idle {destroy .c}
}
pack [ttk::combobox .c -textvariable cvar -values {1 2}]
pack [ttk::entry .e]
trace add variable cvar write changed
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Python tracker <[email protected]>
<https://bugs.python.org/issue46181>
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