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Mobe AF
3,040 Pointshello guys , stuck on this challenge ,
I don’t know what I am missing , also please advise on how to read more about these operations because I am not really getting the point of it .
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):
if '.' in self.value:
return float(self) * other
return int(self) * other
def __rmul__(self, other):
if '.' in self.value:
return float(self) * other
return int(self) * other
def __imul__(self, other):
self.value = self
if '.' in self.value:
return float(self) *= other
return int(self) *= other
2 Answers
Wade Williams
24,476 PointsIn task 1 we just returned the result of multiplying self.value * other, but never actually updated self.value. In task 2 we're actually updating the value of self.value. So we need to:
- Convert self.value to an int
- Multiply self.value by other
- Convert result to str and assign the result to self.value
def __imul__(self, other):
self.value = str(int(self.value) * other)
return self.value
Wade Williams
24,476 PointsYou're pretty close, you want to return int(self.value) * other and not int(self) * other.
def __mul__(self, other):
return int(self.value) * other
def __rmul__(self, other):
return int(self.value) * other
Here's a nice article on "Magic Methods":
Mobe AF
3,040 Pointsstill not passing
Wade Williams
24,476 PointsDid you try copying and pasting my code exactly? I just tried it and it passed.
Mobe AF
3,040 Pointsmy issue is with task 2 the imul .