Along with Graham Chapman, Eric Idle, Terry Gilliam, Terry Jones and John Cleese, Palin was a member of the comedy troupe which worked together between 1969 and 1983.
Asked if people still recite the team's sketches to him, Palin told Metro: "Python is as alive now as it ever was. I'm still recognised from Monty Python, even though we did it 40 years ago.
"You've just got to say 'ni' to a Python fan and they crease up. I'm often asked to write Python material when I do a book signing. I just write 'ni'. It saves me having to remember lyrics from the songs."
Quizzed on his proudest career moments, he added: "I'm very proud of the fish-slapping dance we did in Python. We rehearsed this silly dance where John Cleese hits me with a fish and I fall into Teddington Lock.
"We were so intent on getting the dance right that I didn't notice the lock had cleared and instead of it being a 2ft drop into the water it was a 15ft drop. I'm very proud of doing that."