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Tyun Chan
Python Web Development Techdegree Student 1,464 Pointsabout return 'self' and 'self.value'
Why add(), radd() and iadd() return 'self' instead of 'self.value'? What's different between these method and str() or float(), whose return value is self.value?
1 Answer
Steven Parker
231,269 PointsThe methods __add__and __radd__ don't return "self" but a calculation involving "self". An implicit numeric conversion during the calculation will call either __int__ or __float__, both of which return "self.value" converted to a number.
On the other hand, __iadd__ does return "self.value".