AttributeError HELP!

Question

 class Account:
 def __init__(self, initial):
 self.balance = initial
 def deposit(self, amt):
 self.balance = self.balance + amt
 def withdraw(self,amt):
 self.balance = self.balance - amt
 def getbalance(self):
 return self.balance
a = Account(1000.00)
a.deposit(550.23)
a.deposit(100)
a.withdraw(50)
print a.getbalance()

I get this error when I run this code.. AttributeError: Account instance has no attribute 'deposit'

Answer 1

class Account:
 def __init__(self, initial):
 self.balance = initial
 def deposit(self, amt):
 self.balance = self.balance + amt
 def withdraw(self,amt):
 self.balance = self.balance - amt
 def getbalance(self):
 return self.balance

The way you defined them, they were local to the __init__ method, and thus useless.

Answer 2

So what the above answers mean is that instead your code should be like this - remember unlike other languages, indentation is serious business in Python:

class Account(object):
 def __init__(self, initial):
 self.balance = initial
 def deposit(self, amt):
 self.balance += amt
 def withdraw(self, amt):
 self.balance -= amt
 def getbalance(self):
 return self.balance
a = Account(1000.00)
a.deposit(550.23)
a.deposit(100)
a.withdraw(50)
print a.getbalance()

and now you'll get 1600.23 instead of an error.

Answer 3

You've indented them too deep. They're inner functions of the __init__() method.

Answer 4

In addition to what others have remarked:

You have not correctly shown the code that you actually ran. What appears here has the def __init__ ... at the same level as the class statement; this would have caused a (compile time) SyntaxError, not a (run time) AttributeError.