John Dann a écrit :
May I ask a simple newbie question, which I presume is true, but for
which I can't readily find confirmation:
Let's say I have a parent class with an __init__ method explicitly
defined:
class ParentClass(object):
def __init__(self, keyword1, keyword2):
etc
and I subclass this:
class ChildClass(ParentClass):
# No __init__ method explicitly defined
Now I presume that I can instantiate a child object as:
child = ChildClass(arg1, arg2)
and arg1, arg2 will be passed through to the 'constructor' of the
antecedent ParentClass (there being no overrriding __init__ method
defined for ChildClass) and mapping to keyword1, keyword2 etc.
Have I understood this correctly?
Yes. But you could have checked by yourself:
[EMAIL PROTECTED]:~$ python
Python 2.5.1 (r251:54863, Mar 7 2008, 03:41:45)
[GCC 4.1.2 (Ubuntu 4.1.2-0ubuntu4)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> class Parent(object):
... def __init__(self, kw1, kw2):
... print self, kw1, kw2
... self.kw1, self.kw2 = kw1, kw2
...
>>> class Child(Parent): pass
...
>>> c = Child("arg1", "arg2")
<__main__.Child object at 0xb7ddeccc> arg1 arg2
>>> c.kw1
'arg1'
>>> c.kw2
'arg2'
>>>
HTH
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