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Python Object-Oriented Python Advanced Objects Multiplication

Posted by Mathew Yangang
Mathew Yangang
4,433 Points

multiplying a number string with another number

So as the question asks , I tried to multiply the number string with another number , but code still not passing

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):
        return self + other

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

    def __mul__(self, other):
        self.value = str(value)  * other
        return self.value

    def __rmul__(self, other):
        return self.value

1 Answer

Steven Parker
Steven Parker
231,275 Points
Steven Parker
Steven Parker
231,275 Points

Since you want to do math, you won't be converting anything to a string ("str()"). You'll want to go the other way. And you won't need to directly reference "self.value" for the first task.

The challenge has given you a great model to follow in the form of "__add__" and "__radd__". The functions you need to make will be almost identical except for a different math operator to multiply instead of add.