How Can I Efficiently Perform Element-Wise Addition of Two Lists in Python?

Element-wise Addition of Two Lists: Pythonic Solutions

When faced with the task of performing element-wise addition between two lists, it's natural to seek the most Pythonic approach. This involves harnessing the power of built-in functions and avoiding explicit iteration.

One efficient solution employs map() in conjunction with the operator.add function:

list(map(add, list1, list2))

This approach uses the map function to apply the add operator element-wise to the two lists.

Another Pythonic method involves using zip() with a list comprehension:

[sum(x) for x in zip(list1, list2)]

zip() creates pairs of corresponding elements from the two lists, which are then summed using a list comprehension.

While both methods are elegant, their performance can vary depending on the list sizes. Empirical timing comparisons show that using map with operator.add outperforms zip when working with large lists.

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