How do you check whether a python method is bound or not?,
Given a reference to a method, is there a way to check whether the method is bound to an object or not? Can you also access the instance that it’s bound to?
def isbound(method): return method.im_self is not None def instance(bounded_method): return bounded_method.im_self
When a user-defined method object is
created by retrieving a user-defined
function object from a class, its
method object is said to be unbound.
When one is created by retrieving a
user-defined function object from a
class via one of its instances, its
im_selfattribute is the instance, and
the method object is said to be bound.
In either case, the new method’s
im_classattribute is the class from
which the retrieval takes place, and
im_funcattribute is the original
Instance method objects have new
attributes for the object and function
comprising the method; the new synonym
is also available as
__func__. The old
names are still supported in Python
2.6, but are gone in 3.0.
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