Itertools chain function

Few examples are from the book Python standard library by example.

From the
Documentation====>The chain() function takes several iterators as arguments and returns a single iterator that produces the contents of all of them as though they came from a single iterator.


In Python programming language, an iterator is an object which implements the iterator protocol. The iterator protocol consists of two methods. The __iter__() method, which must return the iterator object and the next() method, which returns the next element from a sequence.

#!usr/bin/env/python 
from itertools import * #chain function  
"""
From the
Documentation====>The chain() function takes several iterators 
as arguments and returns a single iterator that produces the contents of all of them as though they came from a single iterator.

"""
from itertools import *
#Example 1(with equal sized lists)
print "Equal Sized lists:"
for i in chain([1,2,3],['a','b','c']):
    print i,
    # ',' is for horizontal printing of output.

#Example 2:(with inequal size of lists)
print "\n inequal size of lists:"
for i in chain([1,2,3],['a','b']):
    print i,

#Example 3:Tuples and strings
print "\n For tuples and strings"
for i in chain((1,2,3),"Ajay kumar Medepalli"):
    #Ajay kumar Medepalli==>It's my name :P
    print i,

The output is shown in the screenshot

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