Dividing integers...Convert to float first?

Jonathan Smith smithj at rpath.com
Fri Jan 5 18:35:51 CET 2007


Thomas Ploch wrote:
> redefined.horizons at gmail.com schrieb:
>> I'm still pretty new to Python. I'm writing a function that accepts
>> thre integers as arguments. I need to divide the first integer by te
>> second integer, and get a float as a result. I don't want the caller of
>> the function to have to pass floats instead of integers. How do I
>> convert the arguments passed to the function into floats before I do
>> the division? Is this necessary, or is their a better way?
>>
>> Thanks,
>>
>> Scott Huey
>>
> 
> Yes, it is necessary. If you divide two integers, the result will be an
> integer.
> 
>  >>> 1/2
>  0
> 
> You need the function float() -> float because a division between
> integers and floats will have floats as their results
> 
>  >>> float(1)/2
>  0.5


 >>> from __future__ import division
 >>> 1/2
0.5

-smithj



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