我尝试了之前答案中的代码，但它们不适合我。这里是重新连接的JavaScript代码。

let interval = setInterval(function(){
let ok = document.getElementById('ok');
if(ok != null){
   console.log("Connect pushed");
ok.click();
}},60000)

您可以以同样的方式使用它(在浏览器的控制台上运行)来运行它。

如果您想停止脚本，可以输入clearInterval(interval)，并希望再次运行setInterval(interval)。

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.

function ClickConnect()
{
    console.log("Working...."); 
    document.querySelector("paper-button#comments").click()
}
setInterval(ClickConnect, 600)

这对我很有效，但要明智地使用它。

以下最新的解决方案适合我:

function ClickConnect(){
  colab.config
  console.log("Connnect Clicked - Start"); 
  document.querySelector("#top-toolbar > colab-connect-button").shadowRoot.querySelector("#connect").click();
  console.log("Connnect Clicked - End");
};
setInterval(ClickConnect, 60000)

使用Python和Selenium:

from selenium.webdriver.common.keys import Keys
from selenium import webdriver
import time

driver = webdriver.Chrome('/usr/lib/chromium-browser/chromedriver')

notebook_url = ''
driver.get(notebook_url)

# run all cells
driver.find_element_by_tag_name('body').send_keys(Keys.CONTROL + Keys.F9)
time.sleep(5)

# click to stay connected
start_time = time.time()
current_time = time.time()
max_time = 11*59*60 #12hours

while (current_time - start_time) < max_time:
    webdriver.ActionChains(driver).send_keys(Keys.ESCAPE).perform()
    driver.find_element_by_xpath('//*[@id="top-toolbar"]/colab-connect-button').click()
    time.sleep(30)
    current_time = time.time()

更新(2021年7月)。

function ConnectButton(){ 
    console.log("Working"); 
    document.querySelector("#connect").click() 
}
setInterval(ConnectButton, 60000);