Diez B. Roggisch wrote:
> That's not a local variable, that is a default argument. Which is in
> fact only created once for each function, yes.
>
> http://effbot.org/pyfaq/why-are-default-values-shared-between-objects.htm
a nice way of handling this was posted here just yesterday, which isn't in
the ffbot page (afaik):
def function(listvar=None):
# None will force use of empty list here:
for x in listvar or []:
# Do soemthing with contents here
or just
def function(listvar=None):
listvar = listvar or []
...
although the "if arg is None..." is pretty standard python that makes it
clear exactly what you are doing.
andrew
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