Hi John and Alan,
I got it! Thank you both for explaining this situation.
Thanks,
Joe
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On Tue, 22 Nov 2005, [EMAIL PROTECTED]
([EMAIL PROTECTED]
>>I'm puzzled by the 'command' option in menu and Button of
>>Tkinter. With the following lines,
The command value needs to be a *reference* to a function.
That is not the function call itself but a reference to the function
that will be \called.
Let me illustrate the difference:
def f(): print
Apologies to Double Six for getting this twice; I forgot to cc: tutor..
On 23/11/05, Double Six <[EMAIL PROTECTED]> wrote:
> menu.add_command(label="Open Viewer", command=os.system("Open my
> viewer &"))
Hi Joe,
This is a fairly common gotcha.
Think about what happens when python executes a fun
Hi all,
I'm puzzled by the 'command' option in menu and Button of
Tkinter. With the following lines,
menu.add_command(label="Open Viewer", command=os.system("Open my
viewer &"))
Button(toolbar, text='Open Viewer', command=os.system("Open my
viewer &")).pack(side=LEFT)
I wanted to open a g
