database.py

import mysql.connector
from mysql.connector import Error

# connect to mySQL database
def create_connection(host_name, user_name, user_password, db_name):
    connection = None
    try:
        connection = mysql.connector.connect(
            host=host_name,
            user=user_name,
            passwd=user_password,
            database=db_name
        )
        print(f"Connection to MySQL DB successful, using '{db_name}' database")
    except Error as e:
        print(f"The error '{e}' occurred")

    return connection

# executing MySQL queries
def execute_query(connection, query):
    cursor = connection.cursor()
    try:
        cursor.execute(query)
        connection.commit()
        print("Query executed successfully")
    except Error as e:
        print(f"The error '{e}' occurred")
    
def execute_read_query(connection, query):
    cursor = connection.cursor()
    result = None
    try:
        cursor.execute(query)
        result = cursor.fetchall()
        print("Query executed successfully")
        return result
    except Error as e:
        print(f"The error '{e}' occurred")