[Tutor] Some Python difficulties ..
steve at pearwood.info
Sun Jul 10 05:16:03 EDT 2016
On Sun, Jul 10, 2016 at 02:23:23AM +0000, Chan Cheuk wrote:
> Dear all,
> I would like to know whether my designed Python program below for
> Linux route command could not run and show the output onto the
> textarea that I planned originally.
Did you try running it? What happened?
If you run your code from a shell, so you can watch any error messages
that are generated, you will see this error whenever you click the Run
Exception in Tkinter callback
Traceback (most recent call last):
File "/usr/local/lib/python2.7/lib-tk/Tkinter.py", line 1410, in
File "netcat.py", line 14, in startfping
print "\tnetcat command: " + nccommand
NameError: global name 'nccommand' is not defined
> def startfping():
> print "Start nc button clicked!"
> fpingcommand = command_gen()
> print "\tnetcat command: " + nccommand
Where is nccommand defined?
> commandresult = runcommand()
How does runcommand() know what command to run?
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