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discord.py - Python youtube_dl change output name

I'm trying to build a discord music bot and am using youtube_dl for downloading the songs. I want to save them in a directory so I won't have to download them again every time. But I want to change the songs name in the directory.

I know that I'll have to change something in the outtmpl but this is just giving me the youtube name of the song:

ydl_opts = {
            'outtmpl': f'./project/audio/%(title)s.%(ext)s', #Output directory
            'format': 'bestaudio/best',
            'postprocessors': [{
                'key': 'FFmpegExtractAudio',
                'preferredcodec': 'mp3',
                'preferredquality': '192',

            }],
        }

        with youtube_dl.YoutubeDL(ydl_opts) as ydl:
             ydl.download([url])

When I replaced the outtmpl with: 'outtmpl': f'./project/audio/{songname}', it gave me the error message: DownloadError: ERROR: audio conversion failed: file:mp3: Invalid argument

question from:https://stackoverflow.com/questions/65829739/python-youtube-dl-change-output-name

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1 Answer

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by (71.8m points)

Try to print your outtmpl to make sure it contains what you expect. The PEP recommends using {variable} instead of %(ext)s in f-strings.

f'./project/audio/{title}.{ext}'


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