[Tutor] What does "TypeError: 'int' object is not iterable" mean?

[David Hutto]

On Fri, Oct 22, 2010 at 9:42 AM, Richard D. Moores <rdmoores at gmail.com> wrote:
> On Thu, Oct 21, 2010 at 15:44, Richard D. Moores <rdmoores at gmail.com> wrote:
>>> If you want to control the number of decimal places in the string
>>> formatting do something like:
>>>
>>>>>> i = 3
>>>>>> print ("NEW LOW: %%.%sf at %%s" % i) % (lowz, timestamp)
>>> NEW LOW: 81.750 at 22:55:13
>>>>>> i = 6
>>>>>> print ("NEW LOW: %%.%sf at %%s" % i) % (lowz, timestamp)
>>> NEW LOW: 81.750000 at 22:55:13
>>
>> Thanks very much for the string formatting instruction.
>
> So I wrote a function:
>
> def float2n_decimals(floatt, n):
>    """
>    Given a float (floatt), return floatt to n decimal places.
>
>    E.g., with n = 2, 81.34567 -> 81.35
>    """
>    return ("%%.%sf" % n) % floatt
>
> which works fine, but a question remains: n is an integer. Why the 's'
> in '%sf'?

Right here:
http://docs.python.org/release/2.5.2/lib/typesseq-strings.html

>
> (Also, please suggest a better name for this function.)
>
> See this latest revision at <http://tutoree7.pastebin.com/K9ikqNFC>.
>
> Dick
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