python for loop array length code example

Example 1: python3 iterate through indexes

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

Example 2: how to loop the length of an array pytoh

array = range(10)
for i in range(len(array)):
  print(array[i])

Example 3: python for loop index

# Creates two variables; An index (num), and the value at that index (line)
for num, line in enumerate(lines):
    print("{0:03d}: {}".format(num, line))