>>> class A(object):
... def some(self):
... pass
...
>>> a=A()
>>> a.some
<bound method A.some of <__main__.A object at 0x7f0d6fb9c090>>
IOW, I need to get access to "a" after being handed over only "a.some".
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4 Answers
Starting python 2.6 you can use special attribute __self__:
>>> a.some.__self__ is a
True
im_self is phased out in py3k.
For details, see the inspect module in the Python Standard Library.
2 Comments
Thomas K
Just to make it entirely clear: Use this if you have Python 3. If you're using Python 2, the equivalent is the
im_self that others have posted.
Mack
This does not appear to work for dunder methods, e.g. in the original example,
A().__init__.__self__ and A().__eq__.__self__ do not exist. Any idea if there is an alternative?>>> class A(object):
... def some(self):
... pass
...
>>> a = A()
>>> a
<__main__.A object at 0x7fa9b965f410>
>>> a.some
<bound method A.some of <__main__.A object at 0x7fa9b965f410>>
>>> dir(a.some)
['__call__', '__class__', '__cmp__', '__delattr__', '__doc__', '__format__', '__func__', '__get__', '__getattribute__', '__hash__', '__init__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__self__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', 'im_class', 'im_func', 'im_self']
>>> a.some.im_self
<__main__.A object at 0x7fa9b965f410>
Comments
Try following code and see, if it helps you:
a.some.im_self
Comments
You want something like this I guess:
>>> a = A()
>>> m = a.some
>>> another_obj = m.im_self
>>> another_obj
<__main__.A object at 0x0000000002818320>
im_self is the class instance object.
