PEP 292 - Simpler String Substitutions

#String interpolation
from __future__ import print_function      #Compatibilidade func print python 2/3

s = '%s was born in the %s.'
print (  s %('Guido', 'Netherlands'))

#Now, with Python PEP 292 (Simpler String Substitutions):
from string import Template
s = Template('${name} was born in the ${country}.')
print (s.substitute(name='Guido', country='Netherlands'))