[Python-Dev] Comparing heterogeneous types
Guido van Rossum
guido at python.org
Wed Jun 2 12:20:29 EDT 2004
> When that happens, I hope that comparisons between long and float
> will either raise TypeError or behave as if they are done in
> infinite precision. Right now, the long gets converted to float,
> which may lose precision; as a result, it is possible to have values
> such that a==b, b==c, and a!=c.
I agree that doing them as if usin infinite precision is best, but I
adamantly oppose the idea that they should not be comparable at all.
To the contrary, we should do our best to ensure that int/long are
properly and cleanly embedded in floats. That's why I introduced the
change to int/long division after all.
--Guido van Rossum (home page: http://www.python.org/~guido/)
More information about the Python-Dev