﻿ Python Linked List: Create a doubly linked list and print nodes from current position to first node - w3resource

# Python Linked List: Create a doubly linked list and print nodes from current position to first node

## Python Linked List: Exercise-9 with Solution

Write a Python program to create a doubly linked list and print nodes from current position to first node.

Sample Solution:

Python Code:

``````class Node(object):
def __init__(self, data=None, next=None, prev=None):
self.data = data
self.next = next
self.prev = prev

def __init__(self):
self.tail = None
self.count = 0

def append_item(self, data):
# Append an item
new_item = Node(data, None, None)
else:
new_item.prev = self.tail
self.tail.next = new_item
self.tail = new_item

self.count += 1

def print_foward(self):
for node in self.iter():
print(node)

def print_backward(self):
current = self.tail
while current:
print(current.data)
current = current.prev

def iter(self):
# Iterate the list
while current:
item_val = current.data
current = current.next
yield item_val

items.append_item('PHP')
items.append_item('Python')
items.append_item('C#')
items.append_item('C++')
items.append_item('Java')

print("Print Items in the Doubly linked backwards:")
items.print_backward()
```
```

Sample Output:

```Print Items in the Doubly linked backwards:
Java
C++
C#
Python
PHP
```

Flowchart:

Python Code Editor: