Sonic unfortunately they do!
'(!0+1)' in C evaluates as true, while 'not 0+1' in Python would be false.
! is very quick in C, so it's like 1+1, while in Python it would be 'not (0+1)'.
'(4>5==4>5)' is true in C, because the comparisons are quicker, so 0==0 -> True. In Python they have the same precedence, so they get chained, so after 4>5 it's already false.
That's one of the mean pitfalls of trying to learn several languages: Things may look similar, but sometimes act differently behind the scenes.