format() is way better than % in many different ways. One of those is:

>>> names = ['ali', 'reza', 'alireza', 'mohsen']
 >>> print map('Hello Mr. {}'.format, names)
 ['Hello Mr. ali', 'Hello Mr. reza', 'Hello Mr. alireza', 'Hello Mr. mohsen']

#python #format #string_formatter #map