{"id":146812,"date":"2025-09-10T12:52:20","date_gmt":"2025-09-10T07:22:20","guid":{"rendered":"https:\/\/data-flair.training\/blogs\/?p=146812"},"modified":"2025-09-10T12:52:20","modified_gmt":"2025-09-10T07:22:20","slug":"circular-linked-list-in-dsa-python","status":"publish","type":"post","link":"https:\/\/data-flair.training\/blogs\/circular-linked-list-in-dsa-python\/","title":{"rendered":"Circular Linked List in DSA Python"},"content":{"rendered":"<h3>Program 1<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\"># Circular Linked list\r\nimport os\r\nclass Node:\r\n    def __init__(self):\r\n        self.data=None\r\n        self.add=None\r\nclass CircularLinkedList:        \r\n    def __init__(self):\r\n        self.start=None\r\n        self.count=0\r\n\r\n    def create(self):        \r\n        n=int(input(\"Enter First element : \"))\r\n        self.start=Node()\r\n        self.start.data=n\r\n        self.start.add=None\r\n        temp=self.start\r\n        self.count=self.count+1\r\n        choice=input(\"Want to continue(y\/Y): \")\r\n        while(choice=='y' or choice=='Y'):\r\n            self.count=self.count+1\r\n            n=int(input(\"Enter next element : \"))\r\n            newnode=Node()\r\n            newnode.data=n\r\n            newnode.add=None\r\n            temp.add=newnode\r\n            newnode.add=self.start  \r\n            temp=temp.add\r\n            choice=input(\"Want to continue(y\/Y): \")\r\n\r\n    def display(self):    \r\n        if(self.start==None):\r\n            print(\"List is Empty\")\r\n        else:\r\n            temp=self.start\r\n            while(True):\r\n                print(temp.data,end=\"----&gt;\")    \r\n                temp=temp.add\r\n                if(temp==self.start):\r\n                    break\r\n            print(\"\\nTotal node is:  \",self.count)       \r\n\r\n    def insertFirst(self):\r\n        if(self.start==None):\r\n            print(\"List is Empty\")\r\n        else:\r\n            n=int(input(\"Enter next element : \"))\r\n            newnode=Node()\r\n            newnode.data=n\r\n            newnode.add=None\r\n            last=self.start\r\n            while(last.add!=self.start):\r\n                last=last.add\r\n            newnode.add=self.start\r\n            self.start=newnode \r\n            last.add=self.start   \r\n\r\n    def insertLast(self):\r\n         if(self.start==None):\r\n            print(\"List is Empty\")\r\n         else:\r\n            n=int(input(\"Enter next element : \"))\r\n            newnode=Node()\r\n            newnode.data=n\r\n            newnode.add=None\r\n            last=self.start\r\n            while(last.add!=self.start):\r\n                last=last.add\r\n\r\n            last.add=newnode\r\n            newnode.add=self.start\r\n\r\n    def insertMiddle(self):  \r\n        if(self.start==None):\r\n            print(\"List is empty\")\r\n        else:\r\n            self.count=self.count+1\r\n            n=int(input(\"Enter an element for insert: \"))            \r\n            newnode=Node()\r\n            newnode.data=n\r\n            pos=int(input(\"Enter node position for insert:  \"))      \r\n            i=1\r\n            next=self.start\r\n            while(i&lt;pos): \r\n                prev=next\r\n                next=next.add\r\n                i=i+1\r\n            prev.add=newnode\r\n            newnode.add=next\r\n            \r\n\r\n\r\n# Main\r\nos.system('cls')\r\nmylist=CircularLinkedList()\r\nwhile(1):\r\n    print(\"\\n --------------------Linked List------------------------\")\r\n    print(\"1. Create\")\r\n    print(\"2. Display\")\r\n    print(\"3. Insert First\")\r\n    print(\"4. Insert Middle\")\r\n    print(\"5. Insert Last\")\r\n    print(\"6. Exit\")\r\n    print(\"-----------------------------------------------------------\")\r\n    choice=int(input(\"Enter your choice: \"))\r\n    if(choice==1):\r\n        mylist.create()\r\n    elif(choice==2):\r\n        mylist.display()\r\n    elif(choice==3):\r\n        mylist.insertFirst()    \r\n    elif(choice==4):\r\n        mylist.insertMiddle()\r\n    elif(choice==5):\r\n        mylist.insertLast()\r\n    else:\r\n        break<\/pre>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Program 1 # Circular Linked list import os class Node: def __init__(self): self.data=None self.add=None class CircularLinkedList: def __init__(self): self.start=None self.count=0 def create(self): n=int(input(&#8220;Enter First element : &#8220;)) self.start=Node() self.start.data=n self.start.add=None temp=self.start self.count=self.count+1 choice=input(&#8220;Want to&#46;&#46;&#46;<\/p>\n","protected":false},"author":581,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32847],"tags":[2517,32955,35251,32853,35252,32922,32923,32960],"class_list":["post-146812","post","type-post","status-publish","format-standard","hentry","category-dsa-python-tutorials","tag-circular-linked-list","tag-circular-linked-list-in-dsa-python","tag-circular-linked-list-in-dsa-using-python","tag-dsa-python","tag-dsa-python-circular-linked-list","tag-dsa-python-practical","tag-dsa-python-program","tag-dsa-python-program-on-circular-linked-list"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - 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