PYTHON

loop only to the 6th element python

sample = "This is a string"
n = 3 # I want to iterate over every third element
for i,x in enumerate(sample):
    if i % n == 0:
        print("do something with x "+x)
    else:
        print("do something else with x "+x)

loop only to the 6th element python

import itertools
for s in itertools.islice(sample,None,None,n):
    print(s)