What value should be passed to make a function use the defaultargument value?
Fredrik Lundh
fredrik at pythonware.com
Wed Oct 4 07:07:56 EDT 2006
Georg Brandl wrote:
>> But that can only work if you are the author of f. Take the
>> following code:
>>
>> def myrepeat(obj, times = xxx):
>> return itertools.repeat(obj, times)
>>
>> What value do I have to substitue for xxx, so that myrepeat
>> will have the exact same function as itertools.repeat?
>
> There's no possible value. You'll have to write this like
>
> def myrepeat(obj, times=None):
> if times is None:
> return itertools.repeat(obj)
> else:
> return itertools.repeat(obj, times)
or:
def myrepeat(*args):
return itertools.repeat(*args)
</F>
More information about the Python-list
mailing list