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Alex Rivera
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collections.defaultdict is great. Especially in conjunction with lambda : >>> import collections >>> a = collections.defaultdict(lambda : [None,None]) >>> a['foo'] [None, None] Is there a way to use the key given (e.g. 'foo' ) in the lambda? For example (doesn't work): >>> a = collections.defaultdict(lambda : [None]*key) >>> a[1] [None] >>> a[2] [None, None] >>> a defaultdict(<function <lambda> at 0x02984170>, {1: [None], 2: [None, None]})
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