[C++-sig] How can I wrap assign operator(=) in Boost::Python?

[Steve Yin]

Hi all,
    I'm a new guy to this, I have a class, eg: Vector, by default, If I 
create a variable v1, then use v2 = v1, the result is v2 and v1 are exact 
same object, but in C++ I have a assign operator, How can I export this 
assign operator to Python?