Steven D'Aprano <st...@pearwood.info> writes: > x = 1 - 1/2**53 > assert x == 0.9999999999999999
In Python 2.x I don't see how that assert can possibly succeed, since x is the integer 1. But I tested it anyway on 2.7.5 under Fedora 19 and it threw an assertion error. I changed it to say 1 - 1/2.0**53 and then the loop runs to completion. sys.version is: 2.7.5 (default, Nov 3 2014, 14:33:39) \n[GCC 4.8.3 20140911 (Red Hat 4.8.3-7)] -- https://mail.python.org/mailman/listinfo/python-list
