current_node = current_node.next
else:
flag.next = current_node.next
current_node = flag.next
if current_node.data in unique:
flag.next = None
node1 = Node(1)
node2 = Node(2)
node1.next = node2
node3 = Node(3)
node2.next = node3
node1.remove_node(2)
node2 = Node(2)
node3.next = node2
node4 = Node(4)
node2.next = node4
node1_rep = Node(1)
node4.next = node1_rep
node4_rep = Node(4)
node1_rep.next = node4_rep
node1.print_list()
print 'Removing duplication'
#node1.remove_node(1)
remove_dups(node1)
node1.print_list()
