我推荐使用jQuery(似乎collaboratory默认包含jQuery)。

function ClickConnect(){
  console.log("Working");
  $("colab-toolbar-button").click();
}
setInterval(ClickConnect, 60000);

这一个为我工作(似乎他们改变了按钮的类名或id):

函数ClickConnect () { console.log(“工作”); document.querySelector(“colab-connect-button”).click () ｝ setInterval (ClickConnect, 60000)

我不相信JavaScript解决方案还能继续工作。我在我的笔记本里写了:

    from IPython.display import display, HTML
    js = ('<script>function ConnectButton(){ '
           'console.log("Connect pushed"); '
           'document.querySelector("#connect").click()} '
           'setInterval(ConnectButton,3000);</script>')
    display(HTML(js))

当你第一次执行Run all(在JavaScript或Python代码开始之前)时，控制台显示:

Connected to
wss://colab.research.google.com/api/kernels/0e1ce105-0127-4758-90e48cf801ce01a3/channels?session_id=5d8...

然而，每次JavaScript运行时，你都会看到console.log部分，但点击部分只是给出:

Connect pushed

Uncaught TypeError: Cannot read property 'click' of null
 at ConnectButton (<anonymous>:1:92)

其他人建议按钮名称已更改为# coab -connect-button，但这也会产生相同的错误。

After the runtime is started, the button is changed to show RAM/DISK, and a drop down is presented. Clicking on the drop down creates a new <DIV class=goog menu...> that was not shown in the DOM previously, with 2 options "Connect to hosted runtime" and "Connect to local runtime". If the console window is open and showing elements, you can see this DIV appear when you click the dropdown element. Simply moving the mouse focus between the two options in the new window that appears adds additional elements to the DOM, as soon as the mouse looses focus, they are removed from the DOM completely, even without clicking.

使用pynput在PC上创建Python代码:

from pynput.mouse import Button, Controller
import time

mouse = Controller()

while True:
    mouse.click(Button.left, 1)
    time.sleep(30)

在桌面上运行这段代码。然后将鼠标箭头指向(协作实验室的左面板-文件部分)任意目录上的目录结构。

这段代码将每30秒继续单击目录，因此它将每30秒展开和收缩一次。因此您的会话不会过期。

重要的是，你必须在你的PC上运行这段代码。

当所有这些都失败时，您可以通过订阅谷歌Colab Pro+获得后台执行

你可以收藏笔记本，让它保持联系:

function ClickConnect(){
    console.log("Clicked on star button"); 
    document.querySelector("iron-icon#star-icon").click()
}
setInterval(ClickConnect, 60000) 

现在你每分钟都能看到星星的闪烁。