Remove adjacent element in a list in python

Question

I am trying to do a simple python program that removes all the adjacent elements in a list

def main():
    a = [1, 5, 2, 3, 3, 1, 2, 3, 5, 6]
    c = len(a)

            


        

Answer 1

Here's a slightly different approach:

origlist=[1, 5, 2, 3, 3, 1, 2, 3, 5, 6]
newlist=[origlist[0]]
for elem in origlist[1:]:
  if (elem != newlist[-1]):
    newlist.append(elem)

The itertools answer above may be preferred, though, for brevity and clarity...