How to convert List of List to flat List from Class Object output in Python without getting error “'User' object is not iterable”

Question

class User:
    def __init__(self, id, dbcname, username, password):
        self.id = id
        self.dbacname = dbcname
        self.username = username
        self.password = password
    def __repr__(self):
        return f'{[self.username, self.password, self.dbcname]}'

users = []
users.append(User(id=1, dbcname='dbc1', username='user0', password='pwd1'))
users.append(User(id=1, dbcname='dbc2', username='user1', password='pwd2'))
print(users[1])

it gives output as ['user1', 'pwd2', 'dbc2']

but I wanted to know how to access the value user1

Answer 1

Access the attribute you created

users = []
users.append(User(id=1, dbcname='dbc1', username='user0', password='pwd1'))
users.append(User(id=1, dbcname='dbc2', username='user1', password='pwd2'))
print(users[1].username)

Answer 2

Simple, just add the extension (you also have a typo where bdcname became dbaname ) :

class User:
    def __init__(self, id, dbcname, username, password):
        self.id = id
        self.dbcname = dbcname
        self.username = username
        self.password = password
    def __repr__(self):
        return f'{[self.username, self.password, self.dbcname]}'

users = []
users.append(User(id=1, dbcname='dbc1', username='user0', password='pwd1'))
users.append(User(id=1, dbcname='dbc2', username='user1', password='pwd2'))
print(users[1].username)

Output:

user1