I have :
class A: def a(): pass After typing in the python command line:
Aobj = A() aBoundMeth = getattr(Aobj, 'a') My goal is to get the name of the method that aBoundMeth object represents. Is it possible to do it? Thank you in advance.
1 Answer
Assuming that the name of the method is the string 'a' (in this case), You can use the __name__ attribute on the function object.
e.g.
>>> Aobj = A() >>> aBoundMeth = getattr(Aobj, 'a') >>> aBoundMeth.__name__ 'a' Note that this is the function name when it was created. You can make more references to the same function, but the name doesn't change. e.g.
>>> class A(object): ... def a(self): ... pass ... b = a ... >>> Aobj = A() >>> Aobj.a.__name__ 'a' >>> Aobj.b.__name__ 'a' 3 Comments
rokpoto.com
Thanks. I was wondering why it's impossible to see _name_ using dir(aBoundMeth)
Robᵩ
@user1264304 - "Note Because dir() is supplied primarily as a convenience for use at an interactive prompt, it tries to supply an interesting set of names more than it tries to supply a rigorously or consistently defined set of names" - docs.python.org/3/library/functions.html#dir
mgilson
dir gets it's its info from __dict__. If you actually look at a function object's __dict__. If you look at the function object's dict, it is empty -- So python must be doing some sort of special __getattr__ magic within the interpreter to give you the name.
getattrhere?aboundMeth(regardless of how it obtained its value), what is a/the name associated with the bound method object. UsingaBoundMeth = Aobj.awould not affect the answer.