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Python

Posted by scottrussell
scottrussell
8,979 Points

Formatting

In Python what is the difference between {} and %s or %d.

1 Answer

Seth Reece
Seth Reece
32,867 Points
Seth Reece
Seth Reece
32,867 Points

%s is a placeholder for a string. %d is a placeholder for a number (decimal). e.g.

name = 'Name'
number = 12
print 'Hello %s, There are %d months in a year.' % (name, number)

The {} is newer (python 2.6) and more customizable. e.g.

name = 'Name'
number = 12
print 'Hello {}, there are {} months in a year'.format(name, number)
print 'Hello {1}, there are {0} months in a year.'.format(number, name) # prints the same exact message as previous line