Invisible function attributes

[sismex01 at hebmex.com]

[lefevrol at yahoo.com]
>  
>  Python 2.3
>  >>> def foo():
>  ...     foo.a = 1
>  ...
>  >>> vars(foo)
>  {}
>  >>> foo()
>  >>> vars(foo)
>  {'a': 1}
>  >>>
>  
>  So it would appear that function attributes are not really
>  there until the first call to the function. If that is the
>  intended behaviour, it is really weird. I couldn't find any
>  explicit discussion of this topic in the LRM.
>  
>  Thanks if anyone can shed some light on this,
>

not so, function attributes are just like normal object attributes:

Python 2.2.3 (#42, May 30 2003, 18:12:08) [MSC 32 bit (Intel)] on win32
Type "copyright", "credits" or "license" for more information.
IDLE 0.8 -- press F1 for help
>>> def foo2():
	return 9.86960440366

>>> foo2.a = "x"
>>> foo2.a
'x'
>>> 

So... the only reason that your 'foo' got it's attribute until
you ran it, was because *inside* foo was the definition of said
attribute; you could always have defined the attribute outside
of foo anytime.

-gustavo



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