[EMAIL PROTECTED] wrote:
> Hi,
>
> I have the following code:
>
> colorIndex = 0;
>
> def test():
> print colorIndex;
>
> This won't work. But it works if i do this:
>
Yes, it does work. Can you be more explicit about why you think it doesn't?
(Also, this is Python not C/C++. Get *RID* of the semi-colons after your
statements!)
> colorIndex = 0;
>
> def test():
> global colorIndex;
> print colorIndex;
>
If you wish to change the value of colorIndex inside test, then this
won't work
colorIndex = 0
def test():
colorIndex=123 # creates a new variable within test
In the above case you'll end up with two variables of that name, one in the
global context, and the other within test's context.
However, this code might be more what you want:
colorIndex = 0
def test():
global colorIndex
colorIndex=123 # changes the value of the global
Better yet, restructure your code to not rely on the global statement. Do
something like this if you can:
def test():
return 123
colorIndex = test()
Gary Herron
> My question is why do I have to explicit declaring 'global' for
> 'colorIndex'? Can't python automatically looks in the global scope
> when i access 'colorIndex' in my function 'test()'?
>
> Thank you.
>
>
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