In Python, how can you get the name of a member function's class?
From python 3.3, .im_class
is gone. You can use .__qualname__
instead. Here is the corresponding PEP: https://www.python.org/dev/peps/pep-3155/
class C:
def f(): pass
class D:
def g(): pass
print(C.__qualname__) # 'C'
print(C.f.__qualname__) # 'C.f'
print(C.D.__qualname__) #'C.D'
print(C.D.g.__qualname__) #'C.D.g'
With nested functions:
def f():
def g():
pass
return g
f.__qualname__ # 'f'
f().__qualname__ # 'f.<locals>.g'
testFunc.im_class
https://docs.python.org/reference/datamodel.html#the-standard-type-hierarchy
im_class
is the class ofim_self
for bound methods or the class that asked for the method for unbound methods
I'm not a Python expert, but does this work?
testFunc.__self__.__class__
It seems to work for bound methods, but in your case, you may be using an unbound method, in which case this may work better:
testFunc.__objclass__
Here's the test I used:
Python 2.5.2 (r252:60911, Jul 31 2008, 17:31:22)
[GCC 4.2.3 (Ubuntu 4.2.3-2ubuntu7)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import hashlib
>>> hd = hashlib.md5().hexdigest
>>> hd
<built-in method hexdigest of _hashlib.HASH object at 0x7f9492d96960>
>>> hd.__self__.__class__
<type '_hashlib.HASH'>
>>> hd2 = hd.__self__.__class__.hexdigest
>>> hd2
<method 'hexdigest' of '_hashlib.HASH' objects>
>>> hd2.__objclass__
<type '_hashlib.HASH'>
Oh yes, another thing:
>>> hd.im_class
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: 'builtin_function_or_method' object has no attribute 'im_class'
>>> hd2.im_class
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: 'method_descriptor' object has no attribute 'im_class'
So if you want something bulletproof, it should handle __objclass__
and __self__
too. But your mileage may vary.