Looking for a regexp generator based on a set of known string representative of a string set

[vbfoobar at gmail.com]

Hello

I am looking for python code that takes as input a list of strings
(most similar,
but not necessarily, and rather short: say not longer than 50 chars)
and that computes and outputs the python regular expression that
matches
these string values (not necessarily strictly, perhaps the code is able
to determine
patterns, i.e. families of strings...).

Thanks for any idea