Answers for "how to change index inside the loop python"

python for loop index

presidents = ["Washington", "Adams", "Jefferson", "Madison", "Monroe", "Adams", "Jackson"]
for num, name in enumerate(presidents, start=1):
    print("President {}: {}".format(num, name))

python for loop with index

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