Am 08.11.2012 21:29, schrieb Terry Reedy:
On Thu, Nov 8, 2012 at 8:55 AM, Ulrich Eckhardt
<ulrich.eckha...@dominolaser.com> wrote:
On 3.3, it gives me a "TypeError: object.__init__() takes no
parameters". To some extent, this makes sense to me, because the
int subobject is not initialized in __init__ but in __new__. As a
workaround, I can simple drop the parameter from the call.
Just drop the do-nothing call.
Wait: Which call exactly?
Do you suggest that I shouldn't override __init__? The problem is that I
need to attach additional info to the int and that I just pass this to
the class on contstruction.
Or, do you suggest I don't call super().__init__()? That would seem
unclean to me.
Just for your info, the class mimics a C enumeration, roughly it looks
like this:
class Foo(int):
def __init__(self, value, name):
super(Foo, self).__init__(value)
self.name = name
def __str__(self):
return self.name
Foo.AVALUE = Foo(1, 'AVALUE')
Foo.BVALUE = Foo(2, 'BVALUE')
Note that even though I derive from an immutable class, the resulting
class is not formally immutable. Maybe exactly that is the thing that
the developers did not want me to do? I didn't understand all the
implications in the bug ticket you quoted, to be honest.
Thank you for your time!
Uli
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