Wouldn't it be nice if list.count, called without any arguments, returned a dict with the list's unique items as keys and their frequency of occurance as values?
>>> [1,2,1,'a'].count()
{'a': 1, 1: 2, 2: 1}
>>> 'hello world'.count()
{' ': 1, 'e': 1, 'd': 1, 'h': 1, 'l': 3, 'o': 2, 'r': 1, 'w': 1}
...johahn
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