Python: Interleave multiple lists of the same length. Use itertools module

Last update on April 22 2025 12:51:16 (UTC/GMT +8 hours)

29. Interleave Multiple Lists

Write a Python program to interleave multiple lists of the same length. Use the itertools module.

Sample Solution:

Python Code:

import itertools

def interleave_multiple_lists(list1,list2,list3):
    result = list(itertools.chain(*zip(list1, list2, list3)))
    return result
     
list1 = [100,200,300,400,500,600,700]
list2 = [10,20,30,40,50,60,70]
list3 = [1,2,3,4,5,6,7]
print("Original list:")
print("list1:",list1)
print("list2:",list2)
print("list3:",list3)
print("\nInterleave multiple lists:")
print(interleave_multiple_lists(list1,list2,list3))

Sample Output:

Original list:
list1: [100, 200, 300, 400, 500, 600, 700]
list2: [10, 20, 30, 40, 50, 60, 70]
list3: [1, 2, 3, 4, 5, 6, 7]

Interleave multiple lists:
[100, 10, 1, 200, 20, 2, 300, 30, 3, 400, 40, 4, 500, 50, 5, 600, 60, 6, 700, 70, 7]

For more Practice: Solve these Related Problems:

Write a Python program to interleave two or more lists of the same length using itertools.zip_longest and then flatten the result.
Write a Python program to combine multiple lists by interleaving their elements and then reverse every alternate group.
Write a Python program to interleave elements from three lists simultaneously and then map a function to convert them to strings.
Write a Python program to use itertools to merge multiple lists by alternating elements from each list in a round-robin fashion.

Go to:

Previous: Write a Python program to chose specified number of colours from three different colours and generate the unique combinations.
Next: Write a Python program to create non-repeated combinations of Cartesian product of four given list of numbers.

Python Code Editor:

Have another way to solve this solution? Contribute your code (and comments) through Disqus.