Ok I've seen https://docs.python.org/2/tutorial/floatingpoint.html now thanks to Yhg1s on #python I bet you get this kind of thing a lot, sorry :-/ FraserL <fraser.long+usenet at NOSPAMgmail.com> wrote in news:XnsA35313E634BA0fraserlonggmailcom34 at 216.196.109.145: > I think I found a strange bug in python 3.4.1, ... >> #test code > z = 0.01 > p = 0.0 > for x, y in enumerate(range(1, 20)): > p += z > print(p) > #end >>> 3.4.1 output: >... > 0.05 > 0.060000000000000005 > 0.07 ... >>> I'm not hugely accustomed to Python, but this seems crazy to me. >