﻿ Python Linked List: Count the number of items of a given doubly linked list - w3resource

# Python Linked List: Count the number of items of a given doubly linked list

## Python Linked List: Exercise-10 with Solution

Write a Python program to count the number of items of a given doubly linked list.

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

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

print("Number of items of the  Doubly linked list:",items.count)
```
```

Sample Output:

```Number of items of the  Doubly linked list: 6
```

Flowchart:

Python Code Editor: