calculate_md5_checksum

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# Filename: calculate_md5_checksum.py
# Version: 1.0.0
# Author: Jeoi Reqi

"""
This script calculates the MD5 checksum for a given file.

It uses the hashlib library to calculate the MD5 hash of the contents of the file
and returns the hexadecimal representation of the hash.

Example usage:
    filename = "file.txt"  # File needs to be in the current working directory
    md5_checksum = calculate_md5(filename)
    print("MD5 Checksum For", filename, ":", md5_checksum)
"""

import hashlib

def calculate_md5(filename):
    """
    Calculate the MD5 checksum for a given file.

    Parameters:
        filename (str): The name of the file for which to calculate the checksum.

    Returns:
        str: The MD5 checksum of the file in hexadecimal format.

    Raises:
        FileNotFoundError: If the specified file does not exist.
    """
    with open(filename, "rb") as f:
        md5_hash = hashlib.md5()
        for chunk in iter(lambda: f.read(4096), b""):
            md5_hash.update(chunk)
    return md5_hash.hexdigest()

# Example usage:
filename = "file.txt"  # File Needs To Be In The Current Working Directory
md5_checksum = calculate_md5(filename)
print("MD5 Checksum For ",filename,": ", md5_checksum)