Allen a écrit :
[EMAIL PROTECTED] wrote:
On 26 juin, 17:18, Allen <[EMAIL PROTECTED]> wrote:
I need a way to add a method to an existing instance, but be as close as
possible to normal instance methods.
def set_method(obj, func, name=None):
if not name:
name = func.__name__
setattr(obj, name, func.__get__(obj, type(obj)))
class Toto(object):
pass
toto = Toto()
def titi(self):
print self
set_method(toto, titi)
I tried that. func.__get__(obj, type(obj)) creates a bound method
Indeed, since this is how bound methods are created anyway.
and
then sets an attribute to that, creating a cyclic reference. toto
contains a reference to the bound method, the bound method contains a
reference to the instance toto.
Yes, true. I suppose you have good reasons to worry about cyclic
references here, but I fail to imagine what they are.
Another solution might be to create new class on the fly from the
instance's class, inserting the function in the attribs dict, and then
rebind the instance's __class__ to this new class, but that might be a
bit overkill.
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