'self' is not defined

Code:

class User():      """A class to describe typical user and it's info."""        def __init__(self, username, password, first_name, age, birthdate, last_name, middle_name=None, location='', email=''):          """Initialize first and last names, age, birthdate and location(optional)"""          self.username = username          self.password = password          self.email = email          self.first_name = first_name          self.last_name = last_name          self.middle_name = middle_name          self.age = age          self.birthdate = birthdate        def confirm_user(self):          enter_use = "Please enter your username."          use = input(enter_use)          if use == user_1(use):              enter_password = "Please enter your password."              password = input(enter_password)              if password == user_1(password):                  logged_in_user = user_1                  print('Login successful.')          elif use == user_2(use):              enter_password = "Please enter your password."              password = input(enter_password)              if password == user_2(password):                  logged_in_user = user_2                  print('Login successful.')          elif use == user_3(use):              enter_password = "Please enter your password."              password = input(enter_password)              if password == user_3(password):                  logged_in_user = user_3                  print('Login successful.')          elif use != user_1(username) and user_2(username) and user_3(username):              print('Invalid username. If you wish to make an account that uses that username, please sign up.')          elif password != user_1(password) and user_2(password) and user_3(password):              print('Invalid password. If you wish to make an account that uses that password, please sign up.')          else:              print('Invalid username and password. If you wish to make an account that uses that password and username, please sign up.')                def greet_user(self):          full_name = self.first_name + self.middle_name + self.last_name          print('Welcome, ' + (str(full_name.title())) + '!')                def post(self):          """Defining the action of a user posting a message on a website."""          ask = "\nDo you want to post a message?\n(y/n)"          ans = input(ask)            if ans == 'y':              post_what = "\nPlease enter what you want to post:"              post_this = input(post_what)              print(logged_in_user + ':' + post_this)          else:              print('You are welcome to post a message next time!')            user_1 = User('matty1234*', 'matjersey12341234', 'matjersey@hotmail.com', 'mat', 'jersey', 37, '1983/12/31', 'Canada, Ontario, Toronto, Scarborough, Brimley Road')  user_2 = User('<wdwith92>', 'asf2vel', 'sarah_elens@hotmail.com', 'sarah', 'elens', 39, '1981/10/30', 'Canada, Ontario, Toronto, Scarborough, Brimley Road')  user_3 = User('alice&wonderland', 'jonny374', 'jon', 7, '2012/12/24', 'lee', 'elens', 'Canada, Ontario, Toronto, Scarborough, Brimley Road')  users = [user_1, user_2, user_3]    for user in users:      self.confirm_user()      self.greet_user()      self.post()  

What is wrong???

Error:

Traceback (most recent call last): File "C:\Users\di\OneDrive\文档\alice_coding_stuff\python files\User.py", line 66, in self.confirm_user() NameError: name 'self' is not defined

https://stackoverflow.com/questions/65431234/self-is-not-defined December 24, 2020 at 05:37AM