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Fix TypeError resulting from lack of __rmul__ #233

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Feb 1, 2024
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Fix TypeError resulting from lack of __rmul__ #233

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6 changes: 6 additions & 0 deletions vpython/cyvector.pyx
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Original file line number Diff line number Diff line change
Expand Up @@ -85,6 +85,12 @@ cdef class vector(object):
return vector(self * other._x, self * other._y, self * other._z)
return NotImplemented

def __rmul__(self, other): # required to prevent y * x error
if isinstance(other, (float, int)):
return vector(self._x * other, self._y * other, self._z * other)

return NotImplemented

def __eq__(self,other):
if type(self) is vector and type(other) is vector:
return self.equals(other)
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