When formatting a float using the exponential format, the rounding is different in Python-2.6 and Python-2.7. See example below. Is this intentional?
Is there any way of forcing the Python-2.6 behavior (for compatibility reasons when testing)? >c:\python26\python r:\asiData\abaObjects\lib>c:\python26\python Python 2.6.5 (r265:79096, Mar 19 2010, 18:02:59) [MSC v.1500 64 bit (AMD64)] on win32 Type "help", "copyright", "credits" or "license" for more information. >>> x = >>> [2.096732130e+02,2.096732140e+02,2.096732150e+02,2.096732151e+02,2.096732160+02] >>> for a in x: ... print ' %.9e %.7e'%(a,a) ... 2.096732130e+02 2.0967321e+02 2.096732140e+02 2.0967321e+02 2.096732150e+02 2.0967322e+02 <<<<<<<< 2.096732151e+02 2.0967322e+02 4.096732160e+00 4.0967322e+00 >>> for a in x: ... print '%.9e %.7e'%(-a,-a) ... -2.096732130e+02 -2.0967321e+02 -2.096732140e+02 -2.0967321e+02 -2.096732150e+02 -2.0967322e+02 <<<<<<<< -2.096732151e+02 -2.0967322e+02 -4.096732160e+00 -4.0967322e+00 >>> ^Z >c:\python27\python Python 2.7.3 (default, Apr 10 2012, 23:24:47) [MSC v.1500 64 bit (AMD64)] on win32 Type "help", "copyright", "credits" or "license" for more information. >>> x = >>> [2.096732130e+02,2.096732140e+02,2.096732150e+02,2.096732151e+02,2.096732160+02] >>> for a in x: ... print ' %.9e %.7e'%(a,a) ... 2.096732130e+02 2.0967321e+02 2.096732140e+02 2.0967321e+02 2.096732150e+02 2.0967321e+02 <<<<<<<< 2.096732151e+02 2.0967322e+02 4.096732160e+00 4.0967322e+00 >>> for a in x: ... print '%.9e %.7e'%(-a,-a) ... -2.096732130e+02 -2.0967321e+02 -2.096732140e+02 -2.0967321e+02 -2.096732150e+02 -2.0967321e+02 <<<<<<<< -2.096732151e+02 -2.0967322e+02 -4.096732160e+00 -4.0967322e+00 >>> ^Z > Andrew MacKeith -- http://mail.python.org/mailman/listinfo/python-list
