s6.py

#dictionary
a={'a':1,'b':2,'c':3}
#Converting dictionary(iterable) into iterator object using iter() function.
b=iter(a.values())
print (b)#Output:<dict_valueiterator object at 0x012F3BE0>
print (type(b))#Output:<class 'dict_valueiterator'>


#Applying next() over the iterator.
#Returns one element(values) a time.
#Loops over the values in the dictionary
print (next(b))#Output:1
print (next(b))#Output:2