'writethumbnail' not working?

[Elite]

I am using this in my python code but thumbnails are not getting generated, am I missing something here?

ydl_options = {
            'outtmpl': '%(title)s-%(id)s.%(ext)s',
            'logger': Logger(),
            'nooverwrites': True,
            'writethumbnail': True,
        }


        with YoutubeDL(ydl_options) as ydl:
            ydl.add_default_info_extractors()
            info = ydl.extract_info(self.url,False)

[Elite]

OK, this works when downloading video but not as an option for info extraction.

[ghost]

You have thumbnail url in info dict.

[Elite]

@pulpe Yeah, I am aware of that wanted YTDL to do the thumb downloading.

[phihag]

Reopening, this is a bug in youtube-dl.

[jaimeMF]

As a trick I think you can set skip_downloadto True and the video itself won't be downloaded, while the thumbnail will be downloaded (you can also use it to only write the info.json).

[phihag]

The problem is with your invocation - when you pass in False as the second parameter to extract_info, you're disabling any and all downloading. Instead, just set skip_download to True. The following works for me:

from youtube_dl import YoutubeDL
url = 'BaW_jenozKc'


class Logger(object):
    def debug(self, msg):
        print(msg)

    def error(self, msg):
        print(msg)


ydl_options = {
    'outtmpl': '%(title)s-%(id)s.%(ext)s',
    'logger': Logger(),
    'nooverwrites': True,
    'writethumbnail': True,
    'skip_download': True,
}

with YoutubeDL(ydl_options) as ydl:
    ydl.add_default_info_extractors()
    info = ydl.extract_info(url)