Asun Friere <[EMAIL PROTECTED]> wrote:
> On Jul 17, 5:38 pm, Duncan Booth <[EMAIL PROTECTED]> wrote:
>
>> indeed anything which has an __int__ method may be
>> passed to the %d formatter:
>
> Anything?! Sorry to be persnickety here, but what about this:
>
> class C :
> def __int__ (self) : pass
>
> '%d' % C()
>
__int__ is a reserved method name so it is reasonable to assume that any
such method will act as documented: "Should return a value of the
appropriate type." If you choose to ignore the documentation then expect
exceptions to be thrown.
> or this:
>
> def foo (val) : return val
> foo.__int__ = lambda x=42 : int(x)
>
> '%d' % foo('spam')
>
I don't see any methods named '__int__' there, just a function assigned to
an attribute. (Yes, I know that isn't the problem, assigning a function to
an __int__ attribute works for other types, but if you can be silly so can
I.)
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