On 4/18/2010 7:23 PM, Xavier Ho wrote:
G'day Pythoneers,
I ran into a strange problem today: why does Python not allow default
paranmeters for packed arguments in a function def?
>> def test(a = 1, b = (2, 3)):
... print a, b
...
>> test()
1 (2, 3)
>> def t(a, *b = (3, 4)):
File "<input>", line 1
def t(a, *b = (3, 4)):
^
SyntaxError: invalid syntax
What was the rationale behind this design?
To reword what G. Ewing said, because t(3) causes b to be empty. In
actually use cases, I believe that that is usually the appropriate thing
to do.
tjr
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