On Jan 4, 2007, at 7:56 PM, Thomas Ploch wrote:
> Gabriel Genellina schrieb:
>> At Thursday 4/1/2007 23:52, jeremito wrote:
>>
>>> I am writing a class that is intended to be subclassed. What is the
>>> proper way to indicate that a sub class must override a method?
>>
>> If any subclass *must* override a method, raise
>> NotImplementedError in
>> the base class (apart from documenting how your class is supposed
>> to be
>> used).
>>
>>
>
> I learn so much from this list. I didn't even know this error existed.
Me too.
I was looking for a definitive list of Python errors, although I
realize some folks do things like:
class foo :
def __init__() :
<whatever>
def bar() :
abstract
class baz(foo) :
def __init__() :
<whatever>
def bar() :
<shomething useful>
This does what you want in that if baz's bar wasn't defined, calling
this method on a baz instance would give some kind of "variable not
found error."
I imagine the NotImplementedError is actually a defined object, but I
really don't know.
So, back to my question: is a catalog of standard python errors
available? I've looked on the python site but had no success.
Thanks,
--b
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