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Python Object-Oriented Python Advanced Objects Multiplication

Albert Egberg
Albert Egberg
7,786 Points
Posted by Albert Egberg
Albert Egberg
7,786 Points

So... I am stuck again. Anyone wanna help me?

What am I doing wrong this time?

Thanks up ahead.

numstring.py 
class NumString:
    def __init__(self, value):
        self.value = str(value)

    def __str__(self):
         return self.value

    def __int__(self):
        return int(self.value)

    def __float__(self):
        return float(self.value)

    def __add__(self, other):
        if '.' in self.value:
            return float(self) + other
        return int(self) + other

    def __radd__(self, other):
        retrurn self + other

    def __iadd__(self, other):
        self.value = self + other
        return self.value

    def __mul__(self, other):
        if "." in self.value:
            return float(self) * other
        return int(self) * other

    def __rmul__(self, other):
        return self * other
Albert Egberg
Albert Egberg
7,786 Points
Albert Egberg
Albert Egberg
7,786 Points

def mul och def rmul are the magic methods I have created.

2 Answers

KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,664 Points

It looks like you changed return to retrurn in __radd__ 

def __radd__(self, other):
    retrurn self + other
Albert Egberg
Albert Egberg
7,786 Points
Albert Egberg
Albert Egberg
7,786 Points

Oh, thank you. why doesn't it say error on line x? It only says " Bummer, try again! "

KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,664 Points
KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,664 Points

Many times when you receive the generic 'Bummer, try again!' you can copy the code to a workspace and try it there for better feedback. I tried your code and the error was directly pointed out.

treehouse:~/workspace$ python numstring.py                                         
  File "numstring.py", line 20                                                     
    retrurn self + other                                                           
               ^                                                                   
SyntaxError: invalid syntax