Paul Johnston <paul....@gmail.com> writes:
> I would like to have a method that is both a classmethod and an
> instancemethod. So:
>
> class MyClass(object):
> @class_or_instance
> def myfunc(cls_or_self):
> pass
>
> The semantics I'd like are:
> When you call MyClass.myfunc, it gets passed a class
> When you call MyClass().myfunc, it gets passed an instance
class class_or_instance(object):
def __init__(self, fn):
self.fn = fn
def __get__(self, obj, cls):
if obj is not None:
return lambda *args, **kwds: self.fn(obj, *args, **kwds)
else:
return lambda *args, **kwds: self.fn(cls, *args, **kwds)
>>> class MyClass(object):
... @class_or_instance
... def myfunc(cls_or_self):
... return cls_or_self
...
>>> MyClass.myfunc()
<class '__main__.MyClass'>
>>> MyClass().myfunc()
<__main__.MyClass object at 0xb7a248cc>
You might want to use functools.wrap to return named functions rather
than unnamed lambdas, but you get the idea.
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