(python) Youtube-dl 连接错误处理

Question

我是运行在 python

中使用 youtube-dl 下载视频的脚本

def dl_videos():
    while True:
        try:
            while True:
                ydl_opts = {
                    'ignoreerrors': 'True',
                    'download_archive': 'archive',
                    'format': 'bestaudio/best',
                    'outtmpl': 'mp3downloads/%(playlist_title)s/%(title)s.%(ext)s',
                    'postprocessors': [{
                        'key': 'FFmpegExtractAudio',
                        'preferredcodec': 'mp3',
                        'preferredquality': '193',
                    }],
                }
                with youtube_dl.YoutubeDL(ydl_opts) as ydl:
                    with open ('PlaylistOnly', 'r') as r:
                        d = r.readlines()
                        for line in d:
                            ydl.download([line])
                time.sleep(24.0 * 60.0 * 60.0)

        except(FileNotFoundError):
            time.sleep(5)
            continue

dl_videos()

但是，我希望此脚本能够处理连接中断。所以当我在程序中间切断连接时，它会因这个错误而彻底崩溃： [0;31mERROR:[0m Unable to download webpage: <urlopen error [Errno -3] Temporary failure in name resolution> (caused by URLError(gaierror(-3, 'Temporary failure in name resolution')))

注意：如果在线连接丢失，只会在 youtube-dl 过程的某个点出现错误

我希望程序稍等片刻，然后重试该模块，但我完全不确定如何处理此错误。 Idk 如果这是我可以处理异常的特定错误类型。任何帮助表示赞赏

-编辑- （解决方案）

def dl_videos():
    while True:
        try:
            while True:
                ydl_opts = {
                    'ignoreerrors': 'True',
                    'download_archive': 'archive',
                    'format': 'bestaudio/best',
                    'outtmpl': 'mp3downloads/%(playlist_title)s/%(title)s.%(ext)s',
                    'postprocessors': [{
                        'key': 'FFmpegExtractAudio',
                        'preferredcodec': 'mp3',
                        'preferredquality': '193',
                    }],
                }
                with youtube_dl.YoutubeDL(ydl_opts) as ydl:
                    with open ('PlaylistOnly', 'r') as r:
                        d = r.readlines()
                        for line in d:
                            ydl.download([line])
                #Checks if there's a connection to youtube.com, if there's none it loops back before the "freeze" which my dumb a didnt realize was just the next time.sleep function
                if assets.connect() == False:
                    time.sleep(10)
                    continue
                time.sleep(24.0 * 60.0 * 60.0)

        except(FileNotFoundError):
            time.sleep(5)
            continue

dl_videos()

Answer 1

尝试更新 youtube-dl

每当我遇到运行奇怪的连接问题时，都会通过更新来解决。

另见
https://github.com/ytdl-org/youtube-dl/issues/618
https://github.com/ytdl-org/youtube-dl/issues/7586

此外，如果您尝试同时下载多个 link，不妨尝试将其分成更小的块。是不是每次都出问题的link？有没有下载成功？

/// 编辑

经过您的编辑，我更好地理解了您的问题。对于基本的尝试和排除解决方案，您可以

for line in d:
    try:
        ydl.download([line])
    except:
        print(f"error with {line}")

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