global no_picked
no_picked = 0
def picked(object, event):
no_picked += 1
print no_picked
In order to be able to affect variables in the global scope, you need to
declare them global inside the function, and not at the global scope. So
your code should read:
no_picked = 0
def picked(object, event):
global no_picked
no_picked += 1
print no_picked
I believe that will work.
On Fri, 04 Sep 2009 16:43:27 -0700, Helvin <helvin...@gmail.com> wrote:
Hi,
This increment thing is driving me nearly to the nuts-stage. > <
I have a function that allows me to pick points. I want to count the
number of times I have picked points.
global no_picked
no_picked = 0
def picked(object, event):
no_picked += 1
print no_picked
Error msg says: UnboundLocalError: local variable 'no_picked'
referenced before assignment
For some reason, no_picked does not increment, but the printing
statement works.
Do you know why?
(I'm actually writing this for a vtkrenderwindowinteractor.)
Helvin
--
Rami Chowdhury
"Never attribute to malice that which can be attributed to stupidity" --
Hanlon's Razor
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