using range() to iterate trhough index of list code example

Example 1: for loop with index python3

colors = ["red", "green", "blue", "purple"]

for i in range(len(colors)):
    print(colors[i])

Example 2: iterating with index in for loops python

colors = ["red", "green", "blue", "purple"]
ratios = [0.2, 0.3, 0.1, 0.4]
for color, ratio in zip(colors, ratios):
    print("{}% {}".format(ratio * 100, color))