The MP3 circulating around the internet for the last few years that is attributed to Monty Python is actually the one by Merv Griffin, of course. An understandable lazy mistake, since Monty Python did do a skit with a parody of this old music hall-er and for one line the vocal sounds slightly like Eric Idle.

Youtube has a good "live" version of the song by Merv & orchestra from an old TV program. It's a pleasure to see a young Merv at his singing and entertaining peak.