Mark Dickinson <dicki...@gmail.com> added the comment: Instead of the repeated divisions and Inexact tests, how about a direct approach: n/2**k = (n*5**k)/10**k, so something like:
sign = 0 if copysign(1.0, self) == 1.0 else 1 n, d = abs(self).as_integer_ratio() k = d.bit_length() - 1 return _dec_from_triple(sign, str(n*5**k), -k) should work, and would likely be faster too. I also think the sign of 0 should be preserved: i.e., >>> Decimal.from_float(-0.0) Decimal('-0') Am still reviewing---more comments to come. _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue4796> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com