Python OOP programming issue when using MySQL connect

I am trying to write a backend that will be used for an IOS app. I know it will be technically the wrong way to do it but it wont be deployed.

My issues is i get the error

self.cursor(query)
TypeError: 'CMySQLCursor' object is not callable

This happens when i run the following from main.py

import database


db = database.database()

staff = db.getData("SELECT * FROM timesheets.staff")

Finally this is my database.py code

import mysql.connector

class database :
    conn = ""
    cursor = ""

    def __init__(self):
        self.conn = mysql.connector.connect(user='james',
                                       password='timeismoney',
                                       host='hallfamily.mycrestron.com',
                                       database='timesheets',
                                       port='6033')

        self.cursor = self.conn.cursor()

        print("Done")

    def getData(self, query):

        #Checking if the user has applied a string
        if isinstance(query, str):
            self.cursor(query)
        else:
            return "You have provided a request that cant be processed"

        #Fetching all the results
        result = self.cursor.fetchall()

        #Returning back to the user
        return result

    def postData(self):
        print("Coming soon")


    def close(self):
        self.conn.close()