Message120667
It's not a bug: you're seeing Python's rules for integer division, which do indeed differ from those of (some) other languages when either the divisor or the dividend is negative. For integers x and y, in Python 2.x, x / y gives the floor of the exact quotient.
>>> -32 / 5
-7
>>> 32 / -5
-7
In Python 3.x, the '/' operator does 'true division', giving you (a floating-point approximation to) the true result:
>>> -32 / 5
-6.4
>>> 32 / -5
-6.4
You can also get this behaviour in Python 2.x if you start your script with 'from __future__ import division'.
See the documentation at:
http://docs.python.org/reference/expressions.html#binary-arithmetic-operations
for more. |
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Date |
User |
Action |
Args |
2010-11-07 10:51:27 | mark.dickinson | set | recipients:
+ mark.dickinson, alexey.radkov |
2010-11-07 10:51:27 | mark.dickinson | set | messageid: <1289127087.3.0.59046366113.issue10346@psf.upfronthosting.co.za> |
2010-11-07 10:51:25 | mark.dickinson | link | issue10346 messages |
2010-11-07 10:51:25 | mark.dickinson | create | |
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