question on global variables

[Jeff Davis]

'global' is for use in a function body to call a global variable to the 
local scope. To declare a new global variable, simply declare it in the 
global scope, i.e.:

-------begin myscript.py--------
foo = 'string' #global variable

def fn():
        global foo # brings 'foo' into the local scope
        print foo #prints global variable 'foo'

fn()
-------end myscript.py--------

Regards,
        Jeff

mongo57a at comcast.net wrote:

> Somewhat new to Python here.....
> 
> I want to change/use a value throughout my program - what I would
> normally refer to as a "global" variable.
> 
> I see that there is a "global" command - and I assume its use would be
> global var_name. This I have coded (works) but I am unable to use it
> "global name var_name is not defined".
> 
> TIA
> 
> 
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