string interpolation for python

[Duncan Booth]

Yingjie Lan <lanyjie at yahoo.com> wrote:

> Both template based and dict-based formatting require writing the
> identifier three times:
>>>> name = 'Peter'
>>>> "Are you %(name)s"%{'name':name}
> ÿ
> If dynamic string is used:
>>>> "Are you $name$?"
> Template:
>>>> Template("Are you $name?").substitute(name=name)
> It is three to one in compactness, what a magic 3!

You can avoid the duplication fairly easily:

>>> name='Peter'
>>> 'Are you {name}?'.format(**vars())
'Are you Peter?'

though if you're doing that it would be better to limit the scope to a 
specific namespace.

-- 
Duncan Booth http://kupuguy.blogspot.com