loop in even indexs python code example

Example 1: python for loop with index

colors = ["red", "green", "blue", "purple"]
for i in range(len(colors)):
    print(colors[i])

Example 2: for loop with index python

presidents = ["Washington", "Adams", "Jefferson", "Madison", "Monroe", "Adams", "Jackson"]
for i in range(len(presidents)):
    print("President {}: {}".format(i + 1, presidents[i]))