Why it is appeared "self undefined" in line 9?

Question

When I 'm running it it is appeared.
https://code.sololearn.com/cx4mMiprTJDj/?ref=app

Answer 1

Lothar ,yours code is better than my. Thank You, too👍

Answer 2

🅰🅹 🅐🅝🅐🅝🅣 ,Your code is better, thanks 👍

Answer 3

Lothar ,it works fine. Thanks 👍

Answer 4

Denise Roßberg ,thanks 👍

Answer 5

your return statement should be:

return BankAccount(self.balance+ other.balance) # at the moment you have 2 lines should be one line

Answer 6

https://code.sololearn.com/c08iZokvcnOc/?ref=app

Lothar
Die you notice that there is not an extra space between return and BankAccount(self.balance + other.balance)?
If you remove the space you get returnBank...And if you add the space again you get the correct indentation (see my code).

Maybe more a problem of code playground. Or the code is copied into the playground.

Answer 7

Egor Tonchev(EGO)

Change your __add__ method like this

def __add__(self, other):
return (self.balance + other.balance)

----------------

class BankAccount:
def __init__(self, balance):
self.balance = balance

def __add__(self, other):
return (self.balance + other.balance)

a = BankAccount(1024)
b = BankAccount(42)

result = a + b

print(result)