On Fri, Feb 24, 2012 at 12:00 PM, Cesar Mello <cme...@gmail.com> wrote: > Thank you very much for the quick response Jeff! > > First, let me clarify I am a Python newbie, so my assumptions about Python > may be all wrong. > > I had tried __float__ in a Python object, but it does not work implicitly > inside expressions (and I think that's the correct behavior). You still have > to use float(a) for the conversion to be used. > > Now I implemented the C# implicit conversion to double() and I get the same > behavior (it works if I use float(a) in the expression but if I use a * 5.0 > for example I get the error: "unsupported operand type(s) for *: 'DataValue' > and 'float'.
Ah, you missed this first part: you'll need to overload the arithmetic operators for your objects. Python: Define __add__, __sub__, etc. (http://docs.python.org/reference/datamodel.html#object.__add__) C#: Define operator+, operator-, etc. (http://msdn.microsoft.com/en-us/library/aa288467(v=vs.71).aspx) - Jeff _______________________________________________ Ironpython-users mailing list Ironpython-users@python.org http://mail.python.org/mailman/listinfo/ironpython-users
