Counts n-grams of given length in a file and stores them in a shelve. This is just an example, and it needs a bit of work before it can be used for anything useful.
See: http://www.reddit.com/r/learnpython/comments/1hd3rp/how_to_do_as_much_in_memory_as_possible_without/
License: MIT (http://en.wikipedia.org/wiki/MIT_License)
- Ole Martin Bjørndalen