Chris Angelico wrote:
So no, it
isn't proof - it's equally well explained by the code object being
constant.
I suppose, strictly speaking, that's true -- but
then the code object *might as well* be created
at compile time, since the semantics are identical.
In any case, it's easy to see from the data structure
that the default values are kept in the function object:
Python 3.4.2 (default, Feb 4 2015, 20:08:25)
[GCC 4.2.1 (Apple Inc. build 5664)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> y = "spam"
>>> def f(x = y): pass
...
>>> f.__defaults__
('spam',)
I suppose you could argue that f.__defaults__
could be a computed property that's looking inside
f.__code__ somewhere, but that would be stretching
credibility.
--
Greg
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