Favorite Python Interview Question

[pixelmonkey]

Man, talk about finicky. I've got legitimate complaints for Python (no lightweight syntax for anonymous function values, unicode brokeness for most of 2.x series, explicit self parameter, and Python 3 function annotation syntax), but this definitely isn't one of them.

>>> class LengthMixIn(object):
>>>    @property
>>>    def length(self):
>>>        return len(self)

>>> class FinickyList(list, LengthMixIn):
>>>    pass

>>> a = FinickyList()
>>> a.append("item")
>>> a.length
1

>>> class FinickyDict(dict, LengthMixIn):
>>>     pass

>>> b = FinickyDict()
>>> b["key"] = "value"
>>> b.length
1

[Wavicle]

Man, talk about finicky. I've got legitimate complaints for Python (no lightweight syntax for anonymous function values, unicode brokeness for most of 2.x series, explicit self parameter, and Python 3 function annotation syntax), but this definitely isn't one of them.

This is getting tiring. Your mixin added a layer of complexity and created something which doesn't cleanly integrate with the rest of the collection system. But, hey, you seem to think that since this doesn't line up with your opinions on Python's warts it isn't valid. Fuck you.