operator overloading + - / * = etc...

[Tim Chase]

>> With the caveat of the "=" mentioned in the subject-line (being
>> different from "==")...I haven't found any way to override
>> assignment in the general case.
> 
> Why would you want to do that?

For the same reason one would use property() to create 
getter/setter functions for a particular variable--to intercept 
attempts to set a variable.  I'm not sure there's an elegant way 
to do it other than creating a custom container object with a 
getter/setter using property().

My purpose was just to note that the "=" assignment operator is 
distinct from the remainder of the operators that you correctly 
identified can be overridden with their associated __[operator]__ 
method.

-tkc