John Dann wrote:
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...
The nice things about Python is that you can use the interactive
interpreter to test such things in an instant. (And not have to wait
for a response from python-list. Like this:
>>> class ParentClass(object):
... def __init__(self, keyword1, keyword2):
... print 'ParentClass.__init__ called with', keyword1, keyword2
...
>>> class ChildClass(ParentClass):
... pass
...
>>> child = ChildClass(123,456)
ParentClass.__init__ called with 123 456
>>>
Gary Herron
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