Identify if list has consecutive elements that are equal in python

Question

I\'m trying to identify if a large given list has consecutive elements that are the same.

So let\'s say

lst = [1, 2, 3, 4, 5, 5, 6]

Answer 1

A simple for loop should do it:

def check(lst):
    last = lst[0]
    for num in lst[1:]:
        if num == last:
            return True
        last = num
    return False


lst = [1, 2, 3, 4, 5, 5, 6]
print (check(lst)) #Prints True

Here, in each loop, I check if the current element is equal to the previous element.