小编jac*_*ill的帖子

我正在使用 Flasksend_file()来让人们从服务器下载文件。

我目前的代码如下：

@app.route('/', methods=["GET", "POST"])
def index():
    if request.method == "POST":
        link = request.form.get('Link')
        with youtube_dl.YoutubeDL(ydl_opts) as ydl:
            info_dict = ydl.extract_info(link, download=False)
            video_url = info_dict.get("url", None)
            video_id = info_dict.get("id", None)
            video_title = info_dict.get('title', None)
            ydl.download([link])
        print("sending file...")
        send_file("dl/"+video_title+".f137.mp4", as_attachment=True)
        print("file sent, deleting...")
        os.remove("dl/"+video_title+".f137.mp4")
        print("done.")
        return render_template("index.html", message="Success!")
    else:
        return render_template("index.html", message=message)

我.f137.mp4添加的唯一原因是因为我使用 AWS C9 作为我的在线 IDE，并且我无法安装 FFMPEG 来在 Amazon Linux 上组合音频和视频。然而，这不是问题。问题是它没有发送下载请求。

这是控制台输出：

127.0.0.1 - - [12/Dec/2018 16:17:41] "POST / HTTP/1.1" 200 -
[youtube] 2AYgi2wsdkE: Downloading …

我正在处理我的应用程序,并且在添加程序包时我不断收到此错误,因此我可以导入它.

error: type 'Package.Dependency' has no member 'Package'

这是我的Package.swift代码:

// swift-tools-version:4.0
// The swift-tools-version declares the minimum version of Swift required to build this package.

import PackageDescription

let package = Package(
    name: "xHelp",
    dependencies: [
        .Package(url: "https://github.com/onevcat/Hedwig.git",
                 majorVersion: 1)
    ],
    targets: [
        // Targets are the basic building blocks of a package. A target can define a module or a test suite.
        // Targets can depend on other targets in this package, and on products in packages which this package …

在我正在制作的 Discord Bot 中，它需要从 JSON 文件中选择一个随机对象。我当前的代码是这样的：

    function spawn(){
        if (randomNum === 24) return
        const name = names.randomNum
        const embed = new Discord.RichEmbed()
        .setTitle(`${name} has been found!`)
        .setColor(0x00AE86)
        .setThumbnail(`attachment://./sprites/${randomNum}.png`)
        .setTimestamp()
        .addField("Quick! Capture it with `>capture`!")
        msg.channel.send({embed});
    }

JSON 文件如下所示：

{
    "311": "Blargon",
    "310": "Xryzoz",
    "303": "Noot",
    "279": "",
    "312": "Arragn",
    "35": "Qeud",
    ...
}

我希望它随机选择其中一个，例如303，并将其发布到丰富的嵌入中。从这里我该怎么办？