[C++-sig] operator problem

[gaoyakun]

I have exported my point3 class to python, with many overloaded operators. it works fine for me except the *= operator. it always tell me "can't multiply sequence with non int type". but if i use p1.__imul__(p2) instead of p1 *= p2, it successfully executed my code. what's wrong with me? this is some code of my point3 class
 
class point3
{
  .. ...
  point3 & operator *= (const point3 &p)
  {
    v[0] *= p.v[0]; v[1] *= p.v[1]; v[2] *= p.v[2];
    return *this; 
  }
  point3 & operator *= (float t)
  {
    v[0] *= t; v[1] *= t; v[2] *= t;
    return *this;
  }
  ....
};
 
in to_python.cpp:
 
class_<point3>("point3")
... ...
.def(self *= self)
.def(self * self)
.def(self *= other<float>())
.def(self * other<float>())
... ...
 
what's the problem?
______________________________________

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