introspection inquiry

[Robin Becker]

Michael Hoffman wrote:
> Robin Becker wrote:
> 
>> self.__class__.__name__
> 
> 
> Unless I misunderstood the question, that won't work. That will
> give you the name of the class the object is an instance is of.
> I think he wants the name of the class the method was defined in.
> 
> Here's a way to do that using metaclasses and Python's magic
> double-underscore attribute-mangling feature:
> 
> """
> class SelfKnowledge(type):
>     def __init__(cls, name, bases, dict):
>         setattr(cls, "_%s__%s" % (name, "class_name"), name)
>         type.__init__(cls, name, bases, dict)
> 
> class Nietzsche(object):
>     __metaclass__ = SelfKnowledge
> 
>     def __init__(self, text):
>         self.spam = text
>         print "In the constructor of the %s class" % self.__class_name
> 
> class Kierkegaard(Nietzsche):
>     def __init__(self, text):
>         print "Now in the constructor of %s" % self.__class_name
>         Nietzsche.__init__(self, text)
> 
> Nietzsche("Thus Spake Zarathustra")
> print
> 
> Kierkegaard("Fear and Trembling")
> """
> 
> $ python test1.py
> In the constructor of the Nietzsche class
> 
> Now in the constructor of Kierkegaard
> In the constructor of the Nietzsche class

I guess if you're right something along the lines of
import inspect
class A:
   _class_name=inspect.currentframe().f_code.co_name
   def __init__(self,text,_defining_class_name=_class_name):
     print 'text=',text,'_defining_class_name=',_defining_class_name

class B(A):
   pass
b=B('aaa')

==>text= aaa _defining_class_name= A


could work as well, but if we only need the local name why not just 
insert directly.
-- 
Robin Becker