I know my ball python could easily kill my green cheek conure if he was so inclined. Indeed, in turn the GCC could do some damage back even unprovoked (he's drawn blood from me more than once). Needless to say, I never handle both at the same time and never have either one's enclosures open without the other's closed either.
Bottom line, don't imitate all those "cute" viral images/videos of a bunch of random animals (especially predator and prey) hanging out together. That's always asking for trouble.