Arrays in Python
What is an Array in Python?
An array is a collection of elements of the same data type, stored in contiguous memory locations. Arrays are commonly used to store and retrieve data in a more efficient and easy-to-manage manner.
Python arrays are not used as frequently as lists or tuples, but they can provide performance improvements in some scenarios.
Creating an Array in Python
To create an array in Python, you can use the array module which is built-in. Here's an example of creating an array of integers:
In this example, we imported the array module and created an array of integers with the values 1 through 5.
Accessing Elements in an Array
To access an element in an array, you can use the index of the element. Here's an example:
If the index is out of range, an IndexError will be raised.
Iterating Over an Array
You can iterate over an array in Python using a for loop. Here's an example:
Adding and Updating Elements in an Array
To add a new element to an array, you can use the append() method.
To update an existing element in an array, you can use the index of the element.
Deleting an Element in an Array
To delete an element from an array, you can use the pop() method with the index of the element.
Arrays are a powerful data structure in Python that allow you to store and retrieve data in a simple and efficient manner. They are easy to create and manipulate using built-in methods, and can be iterated over using a simple for loop. By understanding arrays and their operations, you can write more efficient and concise code in Python. While arrays are not used as frequently as lists or tuples in Python, they can provide performance improvements in some scenarios.