Division in Pythonista App
JordanF last edited by
I am new to programming and using the pythonista app altogether. When I type:
The console on the pythonista app reveals it as "2" when it should be "2.5" which is what I get when I use Python 3 on my mac.
Helping this beginner out on how I can fix this would be greatly appreciated.
dgelessus last edited by
Pythonista still uses Python 2, where the default behavior for division can be a little confusing. If at least one operand is a
float, then the division will work normally and return a
float. If both operands are
ints, then Python does "floor division" and rounds down the result to an
int. This is also how languages like C and Java behave (which is why Python originally did too).
In Python 3, division always returns a
float. To get the same behavior under Python 2, you can put the line
from __future__ import divisionat the top of your program. The division behavior for the interactive console can be changed in the Pythonista settings.
By the way, if you want to use floor division on purpose, you can use the
//operator, which exists on Python 3 and recent versions of Python 2. For example
5.0 / 2.0 == 2.5and
5.0 // 2.0 == 2.