1This is the Python version of the MD5 test program from the MD5 2Internet Draft (Rivest and Dusse, The MD5 Message-Digest Algorithm, 10 3July 1991). The file "foo" contains the string "abc" with no trailing 4newline. 5 6When called without arguments, it acts as a filter. When called with 7"-x", it executes a self-test, and the output should literally match 8the output given in the RFC. 9 10Code by Jan-Hein B\"uhrman after the original in C. 11