Psymaster wrote:

>  I want to do this:
>  
>  int= 0
>  
>  def change_int():
>      	int += 1
>  
>  change_int()
>  
>  but of course it doesn't work, Python thinks it is a local 
>  variable and refuses to reference the global one. So what would 
>  be a good way of doing this. Note that creating a new global 
>  variable from within the function isn't convenient because the 
>  function is intended to be used in loops.

A function that modifies a global is generally considered bad
design (it has 'side-effects').

But if you really need to do this, just add a 'global' statement:

def change_i():
     global i
     i+=1


PS don't use 'int' for a name of your own, it is a builtin in Python.

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