On Dec 23, 4:57 pm, Hrvoje Niksic <hnik...@xemacs.org> wrote: > I stumbled upon this. Python 2.6: > > Python 2.6.6 (r266:84292, Sep 15 2010, 15:52:39) > [GCC 4.4.5] on linux2 > Type "help", "copyright", "credits" or "license" for more information.>>> 9.95 > 9.9499999999999993 > >>> "%.16g" % 9.95 > '9.949999999999999' > >>> round(9.95, 1) > > 10.0 > > So it seems that Python is going out of its way to intuitively round > 9.95, while the repr retains the unnecessary digits. However, with 2.7 > it's exactly the opposite: > > Python 2.7.0+ (r27:82500, Sep 15 2010, 18:04:55) > [GCC 4.4.5] on linux2 > Type "help", "copyright", "credits" or "license" for more information.>>> 9.95 > 9.95 > >>> "%.16g" % 9.95 > '9.949999999999999' > >>> round(9.95, 1) > > 9.9 > > Is the change to round() expected?
My guess is use decimal module. Regards mario -- http://mail.python.org/mailman/listinfo/python-list