HELP! I dont understand the bug in my code

I'm having a problem understanding the bug in my code and would love some help.<br>```python<br>import sqlite3 as s3<br>import cv2<br>import numpy as np<br>import json<br>from datetime import datetime<br><br>class Recognize:<br> def __init__(self):<br> self.con = s3.connect('database.db')<br> self.cursor = self.con.cursor()<br> self.cursor.execute('select * from users')<br> self.users = self.cursor.fetchall()<br><br> def recognize(self, img):<br> user_img = img<br> user_img = cv2.resize(user_img,(100,100))<br> user_img = cv2.cvtColor(user_img, cv2.COLOR_RGB2BGR)<br> user_img = user_img.reshape((1, -1))<br> recognize = cv2.face.LBPHFaceRecognizer_create()<br> recognize.read('trainer.yml')<br> _, conf, id = recognize.predict(user_img)<br> if conf <= 65:<br> self.cursor.execute('select name from users where id=?', (str(id),))<br> return self.cursor.fetchone()[0] + '\nConfidence: ' + str(100-conf)<br><br> def update(self):<br> i=0<br> for u in self.users:<br> self.cursor.execute('select user_id from monthlydata where user_id=? and month=?', (str(u[1]), str(datetime.now().month)))<br> if self.cursor.fetchone() == None:<br> self.cursor.execute('insert into monthlydata values (null, ?, ?, null)', (str(u[1]), str(datetime.now().month)))<br> self.con.commit()<br><br> def update_attendance(self, id):<br> self.cursor.execute('select attendance from monthlydata where user_id=? and month=?', (str(id), str(datetime.now().month)))<br> prev_attendance = (self.cursor.fetchone()[0])['attendance']<br> rxm = {<br> 'y': 0,<br> 'm': 0,<br> 'd': 0,<br> 'h': 0,<br> 'mi': 0,<br> 's': 0<br> }<br> for item in prev_attendance:<br> rxm[str(datetime.now().month)] += 1<br> prev_attendance[datetime.now().strftime('%d-%m-%Y %H:%M:%S')] = rxm<br> self.cursor.execute('update monthlydata set attendance=? where user_id=? and month=?', (json.dumps(prev_attendance), str(id), str(datetime.now().month)))<br> self.con.commit()<br>```<br><br>The bug in this code is likely due to the fact that the variable "self.users" in the __init__ method is set to the results of the SQL query, which is a list of tuples, and then in the recognize method, you're trying to access this list as if it's a list of dictionaries.<br><br>You should rewrite the recognize method to iterate over the users list correctly.<br><br>Here is an example of the corrected code:<br><br>```python<br>import sqlite3 as s3<br>import cv2<br>import numpy as np<br>import json<br>from datetime import datetime<br>import sys<br><br>class Recognize:<br> def __init__(self):<br> self.con = s3.connect('database.db')<br> self.cursor = self.con.cursor()<br> self.cursor.execute('select * from users')<br> self.users = self.cursor.fetchall()<br><br> def recognize(self, img):<br> user_img = img<br> user_img = cv2.resize(user_img,(100,100))<br> user_img = cv2.cvtColor(user_img, cv2.COLOR_RGB2BGR)<br> user_img = user_img.reshape((1, -1))<br> recognize = cv2.face.LBPHFaceRecognizer_create()<br> recognize.read('trainer.yml')<br> _, conf, id = recognize.predict(user_img)<br> if conf <= 65:<br> self.cursor.execute('select name from users where id=?', (str(id),))<br> return self.cursor.fetchone()[0] + '\nConfidence: ' + str(100-conf)<br><br> def update(self):<br> i=0<br> for u in self.users:<br> self.cursor.execute('select user_id from monthlydata where user_id=? and month=?', (str(u[1]), str(datetime.now().month)))<br> if self.cursor.fetchone() == None:<br> self.cursor.execute('insert into monthlydata values (null, ?, ?, null)', (str(u[1]), str(datetime.now().month)))<br> self.con.commit()<br><br> def update_attendance(self, id):<br> self.cursor.execute('select attendance from monthlydata where user_id=? and month=?', (str(id), str(datetime.now().month)))<br> prev_attendance = (self.cursor.fetchone()[0])['attendance']<br> rxm = {<br> 'y': 0,<br> 'm': 0,<br> 'd': 0,<br> 'h': 0,<br> 'mi': 0,<br> 's': 0<br> }<br> for item in prev_attendance:<br> rxm[str(datetime.now().month)] += 1<br> prev_attendance[datetime.now().strftime('%d-%m-%Y %H:%M:%S')] = rxm<br> self.cursor.execute('update monthlydata set attendance=? where user_id=? and month=?', (json.dumps(prev_attendance), str(id), str(datetime.now().month)))<br> self.con.commit()<br>```<br>Please note that the issue cannot be determined without the database schema, which you didn't provide. Please provide the database schema and I will be happy to help.