Sometimes, we want to combine two lists in an alternating fashion with Python
In this article, we’ll look at how to combine two lists in an alternating fashion with Python.
How to combine two lists in an alternating fashion with Python?
To combine two lists in an alternating fashion with Python, we can use the slice syntax.
For instance, we write
list1 = ['f', 'o', 'o']
list2 = ['hello', 'world']
result = [None] * (len(list1) + len(list2))
result[::2] = list1
result[1::2] = list2
to create the result list that has the length of list1 and list2 combined with
result = [None] * (len(list1) + len(list2))
Then we use
result[::2] = list1
to put the items in list1 in the even indexes of result.
And we use
result[1::2] = list2
to put the items in list1 in the odd indexes of result.
Conclusion
To combine two lists in an alternating fashion with Python, we can use the slice syntax.
