[Tutor] TKinter and IDLE problem
Gregor Lingl
glingl@aon.at
Tue Dec 10 04:22:02 2002
AFIS, this is a well known problem when using
IDLE with Tkinter. IT has it's origin in the fact,
that IDLE itself is a Tkinter-App, so there is
already an active mainloop there.
Solution: if you use or develop TKinter-programs
with IDLE, comment out (or delete) the
root.mainloop() statement.
However, if you want to run your app without
IDLE you have to uncomment or insert it again.
A nice idiom, to accomplish this is as follows below:
Dick Moores schrieb:
>
>
> What am I doing wrong?
>
> Thanks,
>
> Dick Moores
> rdm@rcblue.com
>
> ========================
> # File: hello1.py
>
> from Tkinter import *
usingIDLE = 1 # True
# code of your app
>
> root = Tk()
>
> w = Label(root, text="Hello, world!")
> w.pack()
if not usingIDLE:
root.mainloop()
# you turn mainloop on by setting
# usingIDLE = 0
>
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>