python for array index code example

Example 1: python3 iterate through indexes

items=['baseball','basketball','football']
for index, item in enumerate(items):
    print(index, item)

Example 2: python gt index in for cycle

my_list = [0,1,2,3,4]
for idx, val in enumerate(my_list):
    print('{0}: {1}'.format(idx,val))
#This will print:
#0: 0
#1: 1
#2: 2
#...

Example 3: python iterate with index

for index, item in enumerate(iterable, start=1):
   print index, item

Example 4: iterate array python with index

for header, rows in zip(headers, columns):
    print("{}: {}".format(header, ", ".join(rows)))

Example 5: 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))

Example 6: python for loop array index

colors = ["red", "green", "blue", "purple"]
i = 0
while i < len(colors):
    print(colors[i])
    i += 1