import os from pytube import YouTube from moviepy.editor import AudioFileClip def pytube_to_mp3(url): # 1. Download audio stream (usually as .mp4 or .webm) yt = YouTube(url) audio_stream = yt.streams.filter(only_audio=True).first() downloaded_file = audio_stream.download() # 2. Convert to mp3 using MoviePy base, ext = os.path.splitext(downloaded_file) new_file = base + '.mp3' audio_clip = AudioFileClip(downloaded_file) audio_clip.write_audiofile(new_file) audio_clip.close() # 3. Clean up the original downloaded file os.remove(downloaded_file) print(f"Successfully saved: {new_file}") video_url = input("Enter YouTube URL: ") pytube_to_mp3(video_url) Use code with caution.
: A powerful multimedia framework required by most scripts to perform the actual conversion from video/audio streams into the MP3 format. Method 1: Using yt-dlp (Recommended)
Creating a custom files is a popular project for developers looking to automate their music libraries or extract audio for offline use. While many libraries exist, yt-dlp and pytube are the most frequently used tools for this task. Top Python Libraries for Audio Extraction python script to download youtube mp3
pytube sometimes downloads audio in .mp4 containers. Using MoviePy ensures it is properly transcoded to a standard .mp3 . Essential Implementation Tips Download Youtube playlist as mp3 in Python - Stack Overflow
The FFmpegExtractAudio post-processor automatically handles the conversion from the raw stream to MP3 after the download finishes. Method 2: Using pytube & MoviePy import os from pytube import YouTube from moviepy
This is a "pure Python" approach often used for learning or when you want more control over the file manipulation process.
import yt_dlp def download_youtube_mp3(url): ydl_opts = { 'format': 'bestaudio/best', 'postprocessors': [{ 'key': 'FFmpegExtractAudio', 'preferredcodec': 'mp3', 'preferredquality': '192', }], 'outtmpl': '%(title)s.%(ext)s', # Saves file with video title } with yt_dlp.YoutubeDL(ydl_opts) as ydl: ydl.download([url]) video_url = input("Enter YouTube URL: ") download_youtube_mp3(video_url) Use code with caution. Clean up the original downloaded file os
This method is highly reliable and provides built-in post-processing to ensure you get a proper MP3 file. Install the library: pip install yt-dlp . Ensure FFmpeg is installed and added to your system's PATH. The Script: