python, format string

Question

I am trying to build a format string with lazy argument, eg I need smth like:

\"%s \\%s %s\" % (\'foo\', \'bar\') # \"foo %s bar\"

how can

Answer 1

with python 2.6:

>>> '{0} %s {1}'.format('foo', 'bar')
'foo %s bar'

or with python 2.7:

>>> '{} %s {}'.format('foo', 'bar')
'foo %s bar'