Back in the 1970s, the British comedy troupe Monty Python would often dryly announce, “and now for something completely different.” Well, not much is different about the revival of “Monty ...

NEW YORK — The beauty of “Monty Python’s Spamalot” is that it hews so completely to the Aristotelian unities of drama. By that I mean there’s only one fart joke.

The comedy troupe of Monty Python was formed in 1969 by Graham Chapman, John Cleese, Terry Gilliam, Eric Idle, Terry Jones and Michael Palin. The deal was negotiated for Shout!

Nearly 50 years after the debut of “Monty Python and The Holy Grail,” one of its stars and writers — John Cleese — will return to the Chevalier in Medford for a screening of the endlessly ...