Calculating a SHA hash with a string secret key in python

In this tutorial, we will learn how to calculate a SHA (Secure Hash Algorithm) hash using a string and a secret key in Python. SHA hashes are commonly used for data integrity verification, password storage, and secure communication. Adding a secret key, often referred to as "salting," enhances the security of the hash.
We will use Python's hashlib library, which provides various hash functions, including SHA-256, SHA-384, and SHA-512. In this tutorial, we'll focus on SHA-256 for simplicity.
We need to import the hashlib library to use SHA-256 hashing.
Let's create a function that takes a string and a secret key as input and returns the SHA-256 hash.
Now, let's test our calculate_sha256_hash function by using it with an example string and a secret key.