Python-Download-Youtube-Video

⬇️ Install pytube

pip install pytube # python2
pip3 install pytube # python3
pip install pytube3 # if not work with pytube.

▶️ How to run

• Clone the repository:
  git clone https://github.com/ForestCrazy/Python-Download-Youtube-Video.git

• cd into directory into your command prompt:
  cd Python-Download-Youtube-Video

• Run the download_video.py file:
  python download_video.py --url "url_youtube_video"

• If you want to download the playlist then run the download_playlist.py:
  python download_playlist.py --url "url_youtube_playlist"

❗ Fix Error

Traceback (most recent call last):
  File "C:\Python36-64\lib\site-packages\pytube\extract.py", line 297, in apply_descrambler
    for format_item in formats
  File "C:\Python36-64\lib\site-packages\pytube\extract.py", line 297, in <listcomp>
    for format_item in formats
KeyError: 'url'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "download_video.py", line 10, in <module>
    youtube = YouTube(args.url)
  File "C:\Python36-64\lib\site-packages\pytube\__main__.py", line 92, in __init__
    self.descramble()
  File "C:\Python36-64\lib\site-packages\pytube\__main__.py", line 132, in descramble
    apply_descrambler(self.player_config_args, fmt)
  File "C:\Python36-64\lib\site-packages\pytube\extract.py", line 301, in apply_descrambler
    parse_qs(formats[i]["cipher"]) for i, data in enumerate(formats)
  File "C:\Python36-64\lib\site-packages\pytube\extract.py", line 301, in <listcomp>
    parse_qs(formats[i]["cipher"]) for i, data in enumerate(formats)
KeyError: 'cipher'

1. Go to the location where the package was installed. If you don't know where, run the command
   pip show pytube3
   And it'll give you something like this:
   
   We can see Location: c:\python36-64\lib\site-packages

2. Go to that location, open the folder pytube and the file extract.py
   
   

3. In the file, line no. 306 or 301, you will find parse_qs(formats[i]["cipher"]). If yes, then change "cipher" to "signatureCipher"
   

So, you'll initially have

cipher_url = [
                parse_qs(formats[i]["cipher"]) for i, data in enumerate(formats)
            ]

but it should be

cipher_url = [
                parse_qs(formats[i]["signatureCipher"]) for i, data in enumerate(formats)
            ]