1 import sqlite3

     2 import md5

     3 

     4 def md5sum(t):

     5     return md5.md5(t).hexdigest()

     6 

     7 con = sqlite3.connect(":memory:")

     8 con.create_function("md5", 1, md5sum)

     9 cur = con.cursor()

    10 cur.execute("select md5(?)", ("foo",))

    11 print cur.fetchone()[0]