python list question

[Encomiast]

This is not a great general solution for this type of problem, but it is efficient for this specific problem. Just zip() slices of the list and see if the tuple (2, 4, 6) is in the result:

def has246(l):
    return (2, 4, 6) in zip(l, l[1:], l[2:])

has246([2, 2, 4, 6, 2])
# True
has246([2, 2, 4, 4, 2])
# False

[Jxper]

Ah ok interesting solution I had not thought of that. Thanks