{"id":145759,"date":"2025-07-07T17:52:12","date_gmt":"2025-07-07T12:22:12","guid":{"rendered":"https:\/\/data-flair.training\/blogs\/?p=145759"},"modified":"2025-07-07T17:52:12","modified_gmt":"2025-07-07T12:22:12","slug":"music-playlist-using-dsa-python","status":"publish","type":"post","link":"https:\/\/data-flair.training\/blogs\/music-playlist-using-dsa-python\/","title":{"rendered":"DSA Python Project &#8211; Music Playlist"},"content":{"rendered":"<h3>Program 1<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\"># Music Play list based on Doubly Linked List\r\n\r\nclass Song:             # Node   of doubly linked list                                   \r\n    def __init__(self, title):\r\n        self.prev = None\r\n        self.title = title\r\n        self.next = None\r\n\r\n\r\nclass MusicPlaylist:\r\n    def __init__(self):\r\n        self.head = None\r\n        self.tail = None\r\n        self.current = None\r\n\r\n    def add_song(self, title):\r\n        new_song = Song(title)      # Create Node \r\n        if  self.head==None:\r\n            self.head = self.tail = self.current = new_song\r\n        else:\r\n            self.tail.next = new_song\r\n            new_song.prev = self.tail\r\n            self.tail = new_song\r\n        print(f\"Added: {title}\")\r\n\r\n    def delete_current_song(self):\r\n        if not self.current:\r\n            print(\"No song to delete.\")\r\n            return\r\n\r\n        print(f\"Deleting: {self.current.title}\")\r\n\r\n        if self.current.prev!=None:\r\n            self.current.prev.next = self.current.next\r\n        else:\r\n            self.head = self.current.next\r\n\r\n        if self.current.next!=None:\r\n            self.current.next.prev = self.current.prev\r\n        else:\r\n            self.tail = self.current.prev\r\n\r\n        temp = self.current\r\n        self.current = self.current.next if self.current.next else self.current.prev\r\n        del temp\r\n\r\n        if not self.current:\r\n            print(\"Playlist is now empty.\")\r\n        else:\r\n            print(f\"Now playing: {self.current.title}\")\r\n\r\n    def next_song(self):\r\n     if self.head==None:\r\n            print(\"\\nPlaylist is empty...\")\r\n     else:        \r\n         if self.current and self.current.next:\r\n             self.current = self.current.next\r\n             print(f\"Now playing: {self.current.title}\")\r\n         else:\r\n            print(\"You're at the end of the playlist.\")\r\n\r\n    def prev_song(self):\r\n     if self.head==None:\r\n            print(\"\\nPlaylist is empty...\")\r\n     else:     \r\n        if self.current and self.current.prev:\r\n            self.current = self.current.prev\r\n            print(f\"Now playing: {self.current.title}\")\r\n        else:\r\n            print(\"You're at the start of the playlist.\")\r\n\r\n    # Show Play List Function\r\n    def display_playlist(self):\r\n        if  self.head==None:\r\n            print(\"\\nPlaylist is empty...\")\r\n            return\r\n        print(\"\\nPlaylist:\")\r\n        temp = self.head\r\n        while temp:\r\n            if temp == self.current:\r\n                print(f\"--&gt; {temp.title} [CURRENT SONG]\")\r\n            else:\r\n                print(f\"    {temp.title}\")\r\n            temp = temp.next\r\n        print()\r\n\r\n    def clear_playlist(self):\r\n        while self.head:\r\n            temp = self.head\r\n            self.head = self.head.next\r\n            del temp\r\n        self.tail = self.current = None\r\n\r\n\r\ndef main():\r\n    playlist = MusicPlaylist()\r\n\r\n    while True:\r\n        print(\"\\n---------------------Music Playlist--------------------\")\r\n        print(\"1. Add Song\")\r\n        print(\"2. Delete Current Song\")\r\n        print(\"3. Next Song\")\r\n        print(\"4. Previous Song\")\r\n        print(\"5. Show Playlist\")\r\n        print(\"6. Exit\")\r\n        print(\"-----------------------------------------------------------\")\r\n        choice = input(\"Enter your choice: \")\r\n\r\n        if choice == '1':\r\n            title = input(\"Enter song title: \")\r\n            playlist.add_song(title)\r\n        elif choice == '2':\r\n            playlist.delete_current_song()\r\n        elif choice == '3':\r\n            playlist.next_song()\r\n        elif choice == '4':\r\n            playlist.prev_song()\r\n        elif choice == '5':\r\n            playlist.display_playlist()\r\n        elif choice == '6':\r\n            playlist.clear_playlist()\r\n            print(\"Exiting playlist.\")\r\n            break\r\n        else:\r\n            print(\"Invalid choice.\")\r\n\r\n\r\nif __name__ == \"__main__\":\r\n    main()<\/pre>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Program 1 # Music Play list based on Doubly Linked List class Song: # Node of doubly linked list def __init__(self, title): self.prev = None self.title = title self.next = None class MusicPlaylist: def&#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":[32853,32923,34829,32848,34833,34835,34837,34836,34834],"class_list":["post-145759","post","type-post","status-publish","format-standard","hentry","category-dsa-python-tutorials","tag-dsa-python","tag-dsa-python-program","tag-dsa-python-project","tag-dsa-using-python","tag-music-playlist","tag-music-playlist-in-dsa-using-python","tag-music-playlist-project","tag-music-playlist-project-in-dsa-python","tag-music-playlist-using-dsa-python"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - 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