Iterate over every nth element in string in loop - python

Question

How can iterate over every second element in string ?

One way to do this would be(If I want to iterate over nth element):

sample = "This is a string"
n = 3 # I want to iterate over every third element
i = 1
for x in sample:
    if i % n == 0:
        # do something with x
    else:
        # do something else with x
    i += 1

Is thery any "pythonic" way to do this? (I am pretty sure my method is not good)

Answer 1

you can use step for example sample[start:stop:step]

If you want to iterate over every second element you can do :

sample = "This is a string"

for x in sample[::2]:
    print(x)

output

T
i

s
a
s
r
n