printing anomaly
Delaney, Timothy C (Timothy)
tdelaney at avaya.com
Sun Mar 20 20:03:01 EST 2005
Paul Rubin wrote:
> What's the deal with this?
>
> >>> print 3.2
> 3.2
> >>> print [3.2]
> [3.2000000000000002]
> >>>
>
> Yes, I know that 3.2 isn't an exact binary fraction. I'm wondering
> why it's converted differently depending on whether it's in a list.
`print 3.2` == `print str(3.2)`.
`print [3.2]` == `print str([3.2])`.
list.str calls repr() on all elements. Partly, this is so that:
>>> print [3.2]
>>> print ['3.2']
don't have the same output. Otherwise, how could you tell (visually) if
an element was a string or a float (or integer, or whatever)?
Tim Delaney
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