How exactly is dict implemented that it has a linear time lookup for collisions? I would assume that it is implemented as a hashtable backed by a list. I would presume that a better implementation would be O(log(n)) for various operations, using a tree to back the table instead. Is there some magic happening behind the scenes to keep the constant time lookups alive for as long as possible?
My source for this, by the way, is this:
http://www.google.com/search?sourceid=chrome&ie=UTF-8&q=python+complexity
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