python array loop index 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))

Example 4: how to iterate over a list in python with index

# Create the list
my_list = [1, 2, 3]

# Python automatically creates an index for you and increments it for you
for index in range(len(my_list)):
  print(my_list[index])

Example 5: iterate array python with index

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

Example 6: python for loop array index

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