Downloads all videos in a YouTube playlist as audio files.

playlist_downloader.py

from pytube import YouTube, Playlist

import progressbar

pl = Playlist(url= "")  # Enter YouTube playlist link here.
pl.populate_video_urls()

print("[INFO] Number of Links: {}".format(len(pl.video_urls)))

widgets = ["[INFO] Downloading Video: ", progressbar.Percentage(), " ", progressbar.Bar(), " ", progressbar.ETA()]

def progress_Check(stream = None, chunk = None, file_handle = None, remaining = None):
    #Gets the percentage of the file that has been downloaded.
    current_value = file_size - remaining
    pbar.update(current_value)

for i, url in enumerate(pl.video_urls[:]):
    flag = 0
    counter = 0
    while flag is 0:
        try:
            yt = YouTube(url= url, on_progress_callback=progress_Check)
            print(i, yt.title)
            type_vid = yt.streams.filter(only_audio= True, mime_type= "audio/mp4").first()
            file_size = type_vid.filesize
            pbar = progressbar.ProgressBar(maxval= file_size, widgets= widgets)
            pbar = pbar.start()
            type_vid.download()
            flag= 1
            pbar.finish()
        except ConnectionResetError:
            counter += 1
            print("[INFO] Error Counter: {}".format(counter), end= " ")