[Tutor] Float and decimal spaces

[Eric Walker]

--- Kent Johnson <kent37 at tds.net> wrote:

> Toon Pieton wrote:
> > Hey all!
> > 
> > My memory seem to have a horrible leak. How does
> one limit the amount of 
> > decimal spaces for a float? I used to know that...
> > 
> > Example: not 5.398042156, but 5.4 (if I decide to
> have only one place).
> 
> For printing, use %.1f :
> 
> In [2]: print '%.1f' % 5.398042156
> 5.4
> 
> If you want to limit the precision of computations
> maybe the Decimal 
> module would help.
> 
> Kent
> _______________________________________________
> Tutor maillist  -  Tutor at python.org
> http://mail.python.org/mailman/listinfo/tutor

You can try this:
>>> test
5.3980421559999998
>>> print '%.2f' % (test)
5.40
>>> 
The number gives the number of precision after the
decimal.

Eric




       
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