python: converting data from sqlite3 database into an array format : i have a problem where i am trying to call a specific field from the data recovered by the "self.results" variable from the sqlite3 login database, although i am unable to do this as i believe that the fetched data is not in an array format and therefore the system is unable to use that field, i got rid of all the " ' ", "(", ")" but i do not know what to do now to convert this text file into an array so that a field can be fetched and printed.
could you help please? 
Thank you

        while True:
            username = self.usernameEntry.get()
            password = self.passwordEntry.get()
            conn = sqlite3.connect("database.db")
            cursor = conn.cursor()

            findUser = ("SELECT * FROM students WHERE CardNumberID = ? AND Password = ?")
            cursor.execute(findUser, [(username), (password)])
            self.results = cursor.fetchone()

            fetchedResults = str(self.results)

            fetchedResults =  fetchedResults.replace('(', '')
            fetchedResults =  fetchedResults.replace(')', '')
            fetchedResults =  fetchedResults.replace("'", '')


            fetchedResults.split(',')
            print(fetchedResults[2])
            print(self.results)



and here are the results that i get...
[outcome "print" from logging in, into an account ][1]


  [1]: https://i.stack.imgur.com/O550B.png