On 4/24/2011 5:58 AM, Steven D'Aprano wrote:
Consider this in Python 3.1:
def f(a=42):
... return a
...
f()
42
f.__defaults__ = (23,)
f()
23
Is this an accident of implementation, or can I trust that changing
function defaults in this fashion is guaranteed to work?
Interesting question. It seems not to be documented, so I would not
count on anything. This is a bit of a gray area, and if you get no
answer here, try pydev list, perhaps as a request that special names be
more completely documented, even is just as implementation details
subject to change.
--
Terry Jan Reedy
--
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