FixedPoint

[Mark McEahern]

[Jason Orendorff]
> Yep.  If you know what's in _norm() you can do better than I
> can.  :)  Also, you might pull the first return statement out
> of the try.

_norm basically pulls the number and the precision out of the FixedPoint
instances.  So that would give us this:

    def __cmp__(self, other):
        try:
            xn, yn, p = _norm(self, other)
        except TypeError:
            xn, yx = self, float(other)
        return cmp(xn, yn)

The only problem is:  It doesn't work with other as None because this fails:

	float(None)

which leads us back to testing for None:

	def __cmp__(self, other):
		if other is None:
			return 1
            try:
                  xn, yn, p = _norm(self, other)
            except TypeError:
                  xn, yx = self, float(other)
            return cmp(xn, yn)

I'm inclined at this point to think I'd only do this if I couldn't change
the code that's doing the foo == None.

// mark