The group calling themselves "Monty Python" was a fascinating group of comedic personalities who attempted to recreate the phenominal success of "The Goons" (who were, of course, on radio), but the Python group was in the age of television. Their visual humour was initially very well received, but it wore out quite quickly. The Goonish situations were much more enduring.
In my opinion, the weekly Python telecast was the funniest thing ever seen on television. Terrence ('Spike') Milligan, the most Goonish Goon, was sometimes associated with them, an endorsement of significance!
Several low-budget films were made by the Pythons, and, like the weekly TV satires, they have survived to amuse several new generations of enthusiasts.
"The Life of Brian", a thoughtful comment on those who see Jesus as perfection, whatever he did, and who create shrines of utter insignificance simply because they are associated with Jesus, was perhaps the most cinematically worthy of these films. The ending (Brian is cruciffied) is sheer comedic genuis! (My Bishop recommended this film to me, many years ago!)
"The Meaning of Life", really a collection of loosely related skits, is loved by many (including myself!), but, as a feature-length film, it has less continuity.
"Monty Python and the Holy Grail" is wondrous entertainment, but, like "Life", it is broken into segments that don't completely bind together into a whole. Don't miss it, though. Nothing from Hollywood today remotely approaches it for adult-focused humour!
Added to the Goons superb contribution, Monty Python has helped the art of satire enormously, and these two English groups of funny people has changed greatly the very nature of humour itself!