On Jul 16, 2007, at 12:53 AM, Michele Simionato wrote:
> On Jul 16, 7:18 am, Erik Jones <[EMAIL PROTECTED]> wrote:
>> On Jul 15, 2007, at 11:23 PM, Michele Simionato wrote:
>>
>>> On Jul 16, 5:51 am, Erik Jones <[EMAIL PROTECTED]> wrote:
>>>> Say you're given a call event frame for a method call. How can you
>>>> tell if the code being executed came from a super class of the
>>>> object
>>>> or class the method was called on?
>>
>>>> Erik Jones
>>
>>> You look if the method was defined in self.__class__.__dict__.
>>
>>> Michele Simionato
>>
>> That doesn't seem to cover calling super class __init__ methods.
>>
>
> I am probably missing something. In the following code the
> method check_init checks if the current instance
> possess an __init__ or if it just inherits one
> from the ancestors. Is this what you want?
>
> class B(object):
> def __init__(self):
> 'something'
> def check_init(self):
> if '__init__' in self.__class__.__dict__:
> print 'possesses __init__'
> else:
> print 'inherits __init__'
>
> class C(B):
> 'something else'
> def __init__(self):
> print 'calling C.__init__'
>
> class D(B):
> pass
>
> c = C()
> d = D()
>
> c.check_init() #possesses __init__
> d.check_init() #inherits __init__
Ok, I see how I was pretty vague with my original questions. Given
the pattern where you need to call a base class's constructor (or,
other overriden method of the same name as that being called on the
child class object):
class A(object):
def __init__(self):
print self.__class__.__name__
class B(A):
def __init__(self):
A.__init__(self)
print self.__class__.__name__
B()
This will output:
B
B
How can I get
A
B
Erik Jones
Software Developer | Emma®
[EMAIL PROTECTED]
800.595.4401 or 615.292.5888
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