[Python] Is there any simple way in Python to pair neighboring elements in an array?

Say I've got A = [1, 2, 3, 4]
I want to have B = [(1,2), (2,3), (3,4)],
so I can check if B contains (u,v).

Already tried iterating from 0 to len(A)-1 checking every (A,A+1) but this seems to be inefficient.

A = [1, 2, 3, 4]
for i in range(len(A)-1):
if A == u and A[i+1] == v:
#assume true
#assume false


Having B as above would help in this problem and some others, I think.

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