15:I[6858,["839","static/chunks/839-b69c73e44313baa1.js","347","static/chunks/347-d9d2e00e0c665400.js","558","static/chunks/558-2e65ee2e0e2416a1.js","454","static/chunks/454-69a7e16c18ae537a.js","94","static/chunks/app/tags/%5Bslug%5D/page-63c6a8c22449f2b9.js"],"default"] 17:I[936,["839","static/chunks/839-b69c73e44313baa1.js","347","static/chunks/347-d9d2e00e0c665400.js","558","static/chunks/558-2e65ee2e0e2416a1.js","454","static/chunks/454-69a7e16c18ae537a.js","94","static/chunks/app/tags/%5Bslug%5D/page-63c6a8c22449f2b9.js"],"default"] 16:T4c4,

Carefull, this might not be legal depending on where you do it.

In order to do this, you will have to install the youtube_dl library.

Installation

pip3 install youtube-dl

The code

import youtube_dl
import os

def get_song(filename, url):
	"""Provided and url and a filename download the song."""
    ydl_opts = {
        'format': 'bestaudio/best',
        'postprocessors': [{
            'key': 'FFmpegExtractAudio',
            'preferredcodec': 'mp3',
            'preferredquality': '192',
        }],
    }
    with youtube_dl.YoutubeDL(ydl_opts) as ydl:
        ydl.download([url])
    for file in os.listdir("./"):
        if file.endswith(".mp3"):
            os.rename(file, f"./{filename}.mp3")

if __name__ == "__main__":
	# We download the video's mp3 and save it under "song.mp3"
    get_song("song","https://www.youtube.com/watch?v=U-xsosv6uM0")

Here you are! Now you know how to download a youtube video in mp3 using Python.

Video

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