static variables?

[Steffen Kirschke]

Gerhard Häring wrote:

> In article <3DDA583F.3070206 at Linux.ie>, Padraig Brady wrote:
>     class Foo:
>         def __init__(self, startval):
>             self.counter = startval
> 
>         def __call__(self):
>             print self.counter
>             self.counter += 1
> 
>     foo = Foo(5) # start counting at 5

Or:

def foo(startval=0):
        foo.counter=foo.__dict__.setdefault('counter',startval)+1
        return foo.counter

>>> foo()
1
>>> foo()
2
>>> foo()
3
>>> foo()
4
>>> foo()
5
>>> foo(10)
6
>>> foo(10)
7

to reset the couner and initialize it again:

>>> del(foo.counter)
>>> foo(10)
11
>>> foo(10)
12
>>> foo(10)
13
>>> foo(10)
14

or you may use the yield satement (optional in 2.2) which suspend the
function's state.

Steffen