OracleCon-Establish.py

import cx_Oracle

def main():
    # Variables
    username: str = "HR"
    password: str = "<YOUR_PASSWORD>"
    host: str = "localhost"
    service: str = "XE"

    # Connection establishing
    connection = None
    try:
        connection = cx_Oracle.connect(
            username,
            password,
            "{0}/{1}".format(host, service)
        )
        print("Connection successful")
        connection.close()
    except cx_Oracle.DatabaseError as e:
        print(e)

if __name__ == '__main__':
    main()