I wrote a class to work with the database

When accessing the class, the following error pops up: AttributeError: 'BotDB' object has no attribute 'cursor'

I don’t understand what the problem is.

import sqlite3

class BotDB:

    def __init__(self, db_file):
        self.conn = sqlite3.connect(db_file)
        self.cursor - self.conn.cursor()

    def user_exists(self, user_id):
        result = self.cursor.execute("SELECT 'id' FROM 'users' WHERE 'user_id' = ?", (user_id,))
        return bool(len(result.fetchall()))

    def get_user_id(self, user_id):
        result = self.cursor.execute("SELECT 'id' FROM 'users' WHERE 'user_id' = ?", (user_id,))
        return result.fethcone()[0]

    def add_user(self, user_id):
        self.cursor.execute("INSERT INTO 'users' ('user_id') VALUES (?)", (user_id,))
        return self.conn.commit()

    def add_record(self, user_id, operation, value):
        self.cursor.execute("INSERT INTO 'records' ('user_id', 'operation', 'value') VALUES (?, ?, ?)", (self.get_user_id(user_id), operation == '+', value))
        return self.conn.commit()

    def get_records(self, user_id, within = "*"):
        if(within == 'day'):
            result = self.cursor.execute("SELECT * FROM 'records' WHERE 'user_id' = ? AND 'date' BETWEEN datetime('now', 'start of day') AND datetime('now', 'localtime') ORDER BY 'date'",
                                            self.get_user_id(user_id))
        elif(within == 'month'):
            result = self.cursor.execute(
                "SELECT * FROM 'records' WHERE 'user_id' = ? AND 'date' BETWEEN datetime('now', '- 6 days') AND datetime('now', 'localtime') ORDER BY 'date'",
                self.get_user_id(user_id))
        elif (within == 'year'):
            result = self.cursor.execute(
                "SELECT * FROM 'records' WHERE 'user_id' = ? AND 'date' BETWEEN datetime('now', 'start of month') AND datetime('now', 'localtime') ORDER BY 'date'",
                self.get_user_id(user_id))
        else:
            result = self.cursor.execute(
                "SELECT * FROM 'records' WHERE 'user_id' = ? ORDER BY 'date'",
                self.get_user_id(user_id))

        return result.fetchall()


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

>Solution :

self.cursor - self.conn.cursor()
needs to be swapped to self.cursor = self.conn.cursor()

You are subtracting connection cursor from class cursor instead of setting the cursor value.