For all the Pythons were hailed as unique and original which I suppose they were I think they acknowledge that they owe a huge debt to Spike Milligan , the original avant garde comedian . If you want proof just check out any of his Q series . I
On Python you see many sketches morphing into a completely different items, Spike would just end a sketch at any time and the cast would just stand bemused before moving onto the next item .He actually developed a way of ending them when he would announce that the sketch would be ending now and then the cast would walk in unison towards the camera uttering " What are we going to do now" just so obscure and very original.