Add lacking dynamic assignment ability to my "I wish Python had Foo" list.

Python does not appear to have dynamically assignable arrays. Where are we, C? Assembly? When I assign past the end of the array, I mean resize the god damned array. Thanks.

nightfall(~) % python -c "foo = []; foo[3] = 234"
Traceback (most recent call last):
  File "<string>", line 1, in ?
  IndexError: list assignment index out of range

This is completely unacceptable. Sure, I can use list comprehensions to make an N element array that's empty:

foo = [None for x in range(100)]
foo[44] = "Hi"

That only gets me an array with 100 empty elements. Uh.. Not what I want. If I did this on an array with data in it I didn't want to lose, I'd lose all the data.

Sigh...