printing python variables values

They are used for formatting strings. %s acts a placeholder for a string while %d acts as a placeholder for a number. Their associated values are passed in via a tuple using the % operator.

name = 'marcog'
number = 42
print '%s %d' % (name, number)

will print marcog 42. Note that name is a string (%s) and number is an integer (%d for decimal).

See http://docs.python.org/library/stdtypes.html#string-formatting-operations for details.

In Python 3 the example would be:

print('%s %d' % (name, number))

example code

a="the color of my eyes is "+mystr
print(a)
print("   mystr value is : %s" % mystr)

name = 'marcog'
number = 42
print ('%s %d' % (name, number))

name = 'Ambiorix'
number = 36
print ( 'mystring  y myinterger  values son  %s %d' % (name, number))