python - 如何获取TED带字幕的视频下载url

Question

准备爬一下TED的视频，于是乎随便找到一个视频页面,点了一下download，然后跳出一个“download this talk”的浮动框，用chrome开发者工具分析了一下页面，发现点击download之后会加载一个mp4文件，截图如下： 分析...

阿神 · Answer

There is such a piece of code in the page you provided

download the video to play.

You only need to extract the value in href. I tried it and it can be played. As for how to propose, regular or other methods can be used. It’s all very simple.

We can extract the code for him to click Download from the script

$("#downloadTalk").click(function(b) {
    b.preventDefault();
    var a = $("#videoHolder");
    showDownloadDialog(a)
});
window.showDownloadDialog = function(a) {
    var b = $("#download_dialog");
    if (a.data("downloadhtml")) {
        b.html(a.data("downloadhtml"))
    } else {
        b.load("/download/links/slug/" + talkDetails.mediaSlug + "/type/talks/ext/mp4", function(d, c, e) {
            a.data("downloadhtml", d)
        })
    }
    b.dialog("open")
};

mediaSlug is in the code below it

"duration":1008,"mediaSlug":"MitchResnick_2012X","mediaPad":15.33}

Extract mediaSlug to form the address of the download page.

/download/links/slug/MitchResnick_2012X/type/talks/ext/mp4

But I don’t see a language option for my video.