> Are there any Python libraries implementing measurement of similarity > of two strings of Latin characters?
It sounds like you're interested in calculating the Levenshtein distance: http://en.wikipedia.org/wiki/Levenshtein_distance which gives you a measure of how different they are. A measure of "0" is that the inputs are the same. The more different the two strings are, the greater the resulting output of the function. Unfortunately, it's an O(MN) algorithm (where M=len(word1) and N=len(word2)) from my understanding of the code I've seen. However it really is the best approximation I've seen of a "how similar are these two strings" function. Googling for python levenshtein distance brings up oodles of hits. -tkc -- http://mail.python.org/mailman/listinfo/python-list