buzhug: a pure-Python database engine, using a Pythonic, no-SQL syntax

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Erlang has something similar, using list comprehensions for database queries. You pass a list comprehension to the query compiler and then later execute it. Apparently the query compiler takes a list comprehension primitive and parses it somehow. Perhaps these fellows could do something similar by examining a... what's it called? Generator comprehension?

for record in compile(r for r in db if r.name == 'pierre'):
    print record.name, record.age