text: import pyperclip
  import random
  
  class User:
      '''
          Class to generate new instance of a user.
      '''
      users_list = []
  
      def __init__(self,username,password):
          '''
          __init__ method that helps to define properties of an object
          '''
          self.username = username
          self.password = password
  
      def save_user(self):
          '''
              method to save users to users_list
          '''
  
          User.users_list.append(self)
  
      @classmethod
      def display_user(cls):
          return cls.users_list
  
      def delete_user(self):
          '''
              method to delete a saved user from the users_list
          '''
  
          User.users_list.remove(self)
  
      def generate_password(stringLength = 5):
          '''
              Function to generate a random password 
          '''
  
          randomPassword = random.randint(range(0,10))
          return randomPassword
  
  
  class Credentials:
      '''
          Class to create new objects of credentials.
      '''
      credentials_list = []
  
      def __init__(self,account,user_name,password):
          '''
              method to help define credentials of a user. 
          '''
  
          self.account = account
          self.user_name = user_name
          self.password = password
  
      def save_credentials(self):
          """
          method to store a new credential to the credentials list
          """
          Credentials.credentials_list.append(self)
  
      def delete_credentials(self):
          """
          delete_credentials method that deletes an account credentials from the credentials_list
          """
          Credentials.credentials_list.remove(self)
  
      def find_credential(cls, account):
          """
          Method that takes in a account name and returns a credential that matches that account_name.
  
          """
          for credential in cls.credentials_list:
              if credential.account == account:
                  return credential
  
      @classmethod
      def display_credentials(cls):
          """
          Method that returns all items in the credentials list
  
          """
          return cls.credentials_list
  
      credentials_list = []
      @classmethod
      def verify_user(cls,username, password):
          """
          method to verify whether the user is in our user_list or not
          """
          existing_user = ""
          for user in User.users_list:
              if(user.username == username and user.password == password):
                      existing_user == user.username
          return existing_user
  
  