Python Unpack Array Last Updated : 06 Dec, 2024 Comments Improve Suggest changes Like Article Like Report The unpacking techniques you use with lists also apply to python arrays, but with slight differences due to the nature of the array module. In this article, we'll explore how to unpack arrays using the array module in Python, and demonstrate various methods of unpacking.Basic Array UnpackingTo begin with, let's see how we can unpack values from an array using the array module. Python import array arr = array.array('i', [10, 20, 30]) a, b, c = arr print(a) print(b) print(c) Output10 20 30 Explanation:Here, we create an array arr of type 'i', which means it stores integers. The values [10, 20, 30] are packed into this array.We use the unpacking syntax a, b, c = arr to assign the array's values to the variables a, b, and c.The array values are unpacked into the respective variables, similar to list unpacking.Let's explore other methods unpacking an array in python:Unpacking with Asterisk (*) OperatorUsing the * operator for unpacking works similarly with arrays as it does with lists. This allows you to capture multiple values in the middle of an array. Python import array arr = array.array('i', [1, 2, 3, 4, 5]) a, *rest, e = arr print(a) # 1 print(rest) # [2, 3, 4] print(e) # 5 Output1 [2, 3, 4] 5 Explanation:In this example, the arr array contains the values [1, 2, 3, 4, 5].a gets the first element (1), and e gets the last element (5).The *rest captures the middle elements ([2, 3, 4]) into a list.The use of *rest allows for flexible unpacking when you want to capture all but the first and last elements of the array.Unpacking Nested ArraysArrays in Python can also contain other arrays, allowing you to work with nested structures. You can unpack nested arrays using a similar technique to unpacking simple arrays. Python import array arr1 = array.array('i', [1, 2]) arr2 = array.array('i', [3, 4]) arr3 = [arr1, arr2] (a, b), (c, d) = arr3 print(a, b) # 1 2 print(c, d) # 3 4 Output1 2 3 4 Explanation:Here, arr3 is a list containing two array objects: arr1 and arr2.The unpacking syntax (a, b), (c, d) = arr3unpacks each array into its respective values.The variables a, b, c, and d are assigned values from the two arrays, and the result is printed.Unpacking Using Indexing and SlicingYou can also slice an array and unpack the results. This can be particularly useful if you want to extract only specific parts of an array. Python import array arr = array.array('i', [10, 20, 30, 40, 50]) first_two, *rest = arr[:2], arr[2:] print(first_two) # [10, 20] print(rest) # [30, 40, 50] Outputarray('i', [10, 20]) [array('i', [30, 40, 50])] Explanation:We slice the array into two parts: arr[:2] (the first two elements) and arr[2:] (the remaining elements).We then unpack the two slices into first_two and rest.This technique allows for more control over what parts of the array you want to unpack. Comment More infoAdvertise with us Next Article Python Unpack Array A anuragtriarna Follow Improve Article Tags : Python Python Programs Python-array Practice Tags : python Similar Reads Python Unpack List Unpacking lists in Python is a feature that allows us to extract values from a list into variables or other data structures. This technique is useful for various situations, including assignments, function arguments and iteration. 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