> The question is, what behaviour is preferable for this code:
>
> g = 1
> def f():
> g += 1
>
> f()
>
> Should this raise an UnboundLocalError or should it increment g?
I think it should increment (i.e. rebind) g, for the same reason that
g = [1]
def f():
g[0] += 1
f()
rebinds g[0].
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