youtube-dl taking only first letter of URL? - python-3.x

Question

StackOverflow!
I am having some problems with youtube-dl. I had this working recently, but I made some changes to it, and it now refuses to work. Here is my code:
import youtube_dl
import os
class InvalidURL(Exception):
pass
class SongExists(Exception):
pass
def download(url):
try:
options = {
'format': 'bestaudio/best',
'quiet': False,
'extractaudio': True, # only keep the audio
'audioformat': "wav", # convert to wav
'outtmpl': '%(id)s.wav', # name the file the ID of the video
'noplaylist': True, # only download single song, not playlist
}
with youtube_dl.YoutubeDL(options) as ydl:
r = ydl.extract_info(url ,download=False)
if os.path.isfile(str(r["id"])):
raise SongExists('This song has already been requested.')
print("Downloading", r["title"])
print(str(url))
ydl.download(url)
print("Downloaded", r["title"])
return r["title"], r["id"]
except youtube_dl.utils.DownloadError:
raise InvalidURL('This URL is invalid.')
if __name__ == "__main__":
download("https://www.youtube.com/watch?v=nvHyII4Dq-A")
As far as I can see, it appears that my script is taking the first letter out of my URL. Does anyone know why? As a "Side-quest", does anyone know how to take a search instead of a URL?
Here is my output:
[youtube] nvHyII4Dq-A: Downloading webpage
[youtube] nvHyII4Dq-A: Downloading video info webpage
[youtube] nvHyII4Dq-A: Extracting video information
WARNING: unable to extract uploader nickname
[youtube] nvHyII4Dq-A: Downloading MPD manifest
Downloading MagnusTheMagnus - Area
https://www.youtube.com/watch?v=nvHyII4Dq-A
ERROR: 'h' is not a valid URL. Set --default-search "ytsearch" (or run youtube-dl "ytsearch:h" ) to search YouTube
Traceback (most recent call last):
File "C:\Users\tyler\AppData\Local\Programs\Python\Python36-32\lib\site-packages\youtube_dl\YoutubeDL.py", line 776, in extract_info
ie_result = ie.extract(url)
File "C:\Users\tyler\AppData\Local\Programs\Python\Python36-32\lib\site-packages\youtube_dl\extractor\common.py", line 433, in extract
ie_result = self._real_extract(url)
File "C:\Users\tyler\AppData\Local\Programs\Python\Python36-32\lib\site-packages\youtube_dl\extractor\generic.py", line 1993, in _real_extract
% (url, url), expected=True)
youtube_dl.utils.ExtractorError: 'h' is not a valid URL. Set --default-search "ytsearch" (or run youtube-dl "ytsearch:h" ) to search YouTube
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:/Users/tyler/PycharmProjects/PythonSpeakerThing/downloader.py", line 26, in download
ydl.download(url)
File "C:\Users\tyler\AppData\Local\Programs\Python\Python36-32\lib\site-packages\youtube_dl\YoutubeDL.py", line 1958, in download
url, force_generic_extractor=self.params.get('force_generic_extractor', False))
File "C:\Users\tyler\AppData\Local\Programs\Python\Python36-32\lib\site-packages\youtube_dl\YoutubeDL.py", line 799, in extract_info
self.report_error(compat_str(e), e.format_traceback())
File "C:\Users\tyler\AppData\Local\Programs\Python\Python36-32\lib\site-packages\youtube_dl\YoutubeDL.py", line 604, in report_error
self.trouble(error_message, tb)
File "C:\Users\tyler\AppData\Local\Programs\Python\Python36-32\lib\site-packages\youtube_dl\YoutubeDL.py", line 574, in trouble
raise DownloadError(message, exc_info)
youtube_dl.utils.DownloadError: ERROR: 'h' is not a valid URL. Set --default-search "ytsearch" (or run youtube-dl "ytsearch:h" ) to search YouTube
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:/Users/tyler/PycharmProjects/PythonSpeakerThing/downloader.py", line 33, in <module>
download("https://www.youtube.com/watch?v=nvHyII4Dq-A")
File "C:/Users/tyler/PycharmProjects/PythonSpeakerThing/downloader.py", line 30, in download
raise InvalidURL('This URL is invalid.')
__main__.InvalidURL: This URL is invalid.

Answer 1

As documented, the ydl.download function takes a list of URLs. So instead of
ydl.download(url)
you want to call
ydl.download([url])
To run a search, first, look up the keyword by running youtube-dl --extractor-descriptions | grep search. For instance, the keyword for Soundcloud search is scsearch and the keyword for YouTube default search is ytsearch.
Then, simply pass the keyword and search terms, separated by a colon (:) as the URL.
For example, a URL of ytsearch:fluffy bunnies will find you the top video of fluffy bunnies on YouTube with the default search criteria.

Answer 2

Here is the sample :
sound_list = []
# bike sound
sound_list.append('https://www.youtube.com/watch?v=sRdRwHPjJPk')
# car sound
sound_list.append('https://www.youtube.com/watch?v=PPdNb-XQXR8')
with youtube_dl.YoutubeDL(ydl_opts) as ydl:
ydl.download(sound_list)