Would all these problems with floating points be a rational reason to add rational numbers support in Python or Py3k? (pun not intended)
I agree, there are some numbers that is rationals can't represent (like pi, phi, e) but these rounding problems also exist in floating points, and rational numbers wouldn't be so easily fooled by something like 1 / 3 * 3, and 1/10 (computer) is exactly 0.1 (human). The first problem with rational is that to get an infinite precision rational, the language would have to have an infinite length integers, which Python have given us. The second problem with rationals is to keep rationals in its most simple, trivial form. This can be solved with a good GCD algorithm, which can also be a nice addition to Python's math library. -- http://mail.python.org/mailman/listinfo/python-list
