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Message: [QUOTE="Brandon, post: 3609430"] Hi all, I am not altogether experienced in Python, but I haven't been able to find a good example of the syntax that I'm looking for in any tutorial that I've seen. Hope somebody can point me in the right direction. This should be pretty simple: I have two dictionaries, foo and bar. I am certain that all keys in bar belong to foo as well, but I also know that not all keys in foo exist in bar. All the keys in both foo and bar are tuples (in the bigram form ('word1', 'word2)). I have to prime foo so that each key has a value of 1. The values for the keys in bar are variable integers. All I want to do is run a loop through foo, match any of its keys that also exist in bar, and add those key's values in bar to the preexisting value of 1 for the corresponding key in foo. So in the end the key,value pairs in foo won't necessarily be, for example, 'tuple1: 1', but also 'tuple2: 31' if tuple2 had a value of 30 in bar. I *think* the get method might work, but I'm not sure that it can work on two dictionaries the way that I'm getting at. I thought that converting the dictionaries to lists might work, but I can't see a way yet to match the tuple key as x[0][0] in one list for all y in the other list. There's just got to be a better way! Thanks for any help, Brandon (trying hard to be Pythonic but isn't there yet) [/QUOTE]