Is 'isinstance()' the right thing?

[Alex Martelli]

Erik Max Francis wrote:
        ...
> No, they work with any object:
> 
>>>> import operator
>>>> operator.isSequenceType([1, 2, 3])
> 1
>>>> class MyList(list): pass
> ...
>>>> operator.isSequenceType(MyList())
> 1

>>> import operator
>>> class X: pass
...
>>> operator.isSequenceType(X())
1
>>>


Alex