decimal numbers

[Luke Geelen]

Op zaterdag 15 februari 2014 11:04:17 UTC+1 schreef Frank Millman:
> "Luke Geelen" <luke.geelen at gmail.com> wrote in message 
> 
> news:ec88852e-1384-4aa5-834b-85135be94ab9 at googlegroups.com...
> 
> > Op zaterdag 15 februari 2014 10:18:36 UTC+1 schreef Luke Geelen:
> 
> > hello,
> 
> >
> 
> > i have been working on a python resistor calculator to let my class show 
> 
> > what you can do with python.
> 
> >
> 
> > now i have a script that makes the more speekable value of the resistance 
> 
> > (res)
> 
> >
> 
> [...]
> 
> >
> 
> > i commented it because it doesn't work (yet), when i have a resistance of
> 
> >
> 
> > 9.9 Giga ohms it says it is 9 giga ohms. it seems to work with natural 
> 
> > number, anyway of using decimals insted so that it says : the resistance 
> 
> > is 9.9 Giga Ohms instead of 9 ?
> 
> >
> 
> 
> 
> You don't say which version of python you are using.
> 
> 
> 
> If you are using python2, an integer divided by an integer always returns an 
> 
> integer -
> 
> 
> 
> >>> 10/3
> 
> 3
> 
> 
> 
> It was changed in python3 to return a float -
> 
> 
> 
> >>> 10/3
> 
> 3.3333333333333335
> 
> 
> 
> You can reproduce the python3 behaviour in python2 by adding a 'future' 
> 
> directive -
> 
> 
> 
> >>> from __future__ import division
> 
> >>> 10/3
> 
> 3.3333333333333335
> 
> 
> 
> HTH
> 
> 
> 
> Frank Millman

how (and where) would i add this rule into a script? by import or the calculation?