Why no list heritable type?

[Sion Arrowsmith]

In article <86vfb13jpl.fsf at guru.mired.org>, Mike Meyer  <mwm at mired.org> wrote:
>And before Python 2.2 there was the UserList class in the standard
>library. Which is still there in 2.4. Shouldn't it be depreciated by
>this point?

Apart from compatibility issues as mentioned in the UserList
documentation, deriving from it will give you a classic class,
whereas deriving from list will give you a new style class.
There may be circumstances under which this is important
(exercise left to more twisted minds than mine). Same applies
to dict/UserDict.

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