What Is %S In Python?

#Python2
name = raw_input("who are you?")
print "hello %s" % (name,)

#Python3+
name = raw_input("who are you?")
print("hello %s" % (name,))

The %s token allows me to insert (and potentially format) a string. Notice that the %s token is replaced by whatever I pass to the string after the % symbol. Notice also that I am using a tuple here as well (when you only have one string using a tuple is optional) to illustrate that multiple strings can be inserted and formatted in one statement.