What is an Array in Python?

What is an Array in Python?

An array is a collection of items stored at contiguous memory locations. The idea is to store multiple items of the same type together. This makes it easier to calculate the position of each element by simply adding an offset to a base value, i.e., the memory location of the first element of the array (generally denoted by the name of the array)....

Create an Array in Python

Array in Python can be created by importing an array module. array(data_type, value_list) is used to create array in Python with data type and value list specified in its arguments....

Adding Elements to a Array

Elements can be added to the Python Array by using built-in insert() function. Insert is used to insert one or more data elements into an array. Based on the requirement, a new element can be added at the beginning, end, or any given index of array. append() is also used to add the value mentioned in its arguments at the end of the Python array....

Accessing Elements from the Array

In order to access the array items refer to the index number. Use the index operator [ ] to access an item in a array in Python. The index must be an integer....

Removing Elements from the Array

Elements can be removed from the Python array by using built-in remove() function but an Error arises if element doesn’t exist in the set. Remove() method only removes one element at a time, to remove range of elements, iterator is used. pop() function can also be used to remove and return an element from the array, but by default it removes only the last element of the array, to remove element from a specific position of the array, index of the element is passed as an argument to the pop() method.Note – Remove method in List will only remove the first occurrence of the searched element....

Slicing of an Array

In Python array, there are multiple ways to print the whole array with all the elements, but to print a specific range of elements from the array, we use Slice operation. Slice operation is performed on array with the use of colon(:). To print elements from beginning to a range use [:Index], to print elements from end use [:-Index], to print elements from specific Index till the end use [Index:], to print elements within a range, use [Start Index:End Index] and to print whole List with the use of slicing operation, use [:]. Further, to print whole array in reverse order, use [::-1]....

Searching Element in an Array

In order to search an element in the array we use a python in-built index() method. This function returns the index of the first occurrence of value mentioned in arguments....

Updating Elements in a Array

In order to update an element in the array we simply reassign a new value to the desired index we want to update....

Different Operations on Python Arrays

Counting Elements in a Array...