PEP 378: Format Specifier for Thousands Separator

[Jerry Hill]

On Thu, May 23, 2013 at 6:20 PM, Carlos Nepomuceno <
carlosnepomuceno at outlook.com> wrote:

> Can str.format() do the following?
>
> f = '%d %d %d'
> v = '1,2,3'
> print f % eval(v)
>

​Sure:

Python 3.2.2 (default, Sep  4 2011, 09:51:08) [MSC v.1500 32 bit (Intel)]
on win32
>>> f = "{} {} {}"
>>> v = "1,2,3"
>>> print(f.format(*eval(v)))
1 2 3
>>>

The * unpacks the tuple returned from eval(), so that you get 3 separate
parameters passed to format(), instead of the single tuple.​

--
​
Jerry​
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