我如何引用 ::after 标签以便使用 puppeteer/pyppeteer 单击它？

如何解决我如何引用 ::after 标签以便使用 puppeteer/pyppeteer 单击它？

我正在尝试在工作中自动执行一些任务，这需要从 pingdom 中获取许多页面的页面速度见解。我没有购买高级版的预算，所以我自己写了一个 python 脚本。

我需要点击“北美 - 美国 - 旧金山”，为了让它出现在 HTML 检查器中，我必须先点击 ::after。我如何用 puppeteer 点击它？我了解点击次数，但如何引用 ::after 标签？

尝试修复（我尝试编辑 HTML，但在我的脚本单击按钮后，它恢复到亚洲）：

    # All this did was switch the HTML and after it clicks the button,the_class = '[class=ng-tns-c3-0]'
    element = await page.querySelectorAll(the_class)
    title = await page.evaluate('(element) => element.innerText = "north America - USA - San Francisco"',element[3])
    await page.screenshot({'path': 'screenshotcorrect.png'})

代码片段：

import asyncio
from pyppeteer import launch
import sys

async def main():
    browser = await launch()
    page = await browser.newPage()
    await page.goto('https://tools.pingdom.com/')

    # Fill search field
    content = "https://www.howthefork.com/"
    await page.type('[id=urlInput]',content)

    # ISSUE IS HERE
    await page.waitForSelector("::after")
   # await page.click('::after')

    # All this did was switch the HTML it didn't select north America
    #the_class = '[class=ng-tns-c3-0]'
    #element = await page.querySelectorAll(the_class)
    #title = await page.evaluate('(element) => element.innerText = "north America - USA - San Francisco"',element[3])
    #await page.screenshot({'path': 'screenshotcorrect.png'})

    # Click 'start test'
    button = await page.xpath('/html/body/app-root/main/app-home-hero/header/section/app-test-runner/div/div[2]/div[3]/input')
    await button[0].click()

    # Wait for right elements to load
    await page.waitForXPath('/html/body/app-root/main/app-report/section[1]/app-summary/div/div/app-summary-player/div/div[2]/div/div[1]/app-metric/div[2]')

    # Print the score we want
    value = '[class=value]'
    grade_finder = await page.querySelectorAll(value)
    grade = await page.evaluate('(grade_finder) => grade_finder.textContent',grade_finder[0])
    print(grade)

    # Screenshot and close
    await page.screenshot({'path': 'screenshot.png'})
    await browser.close()

if __name__ == "__main__":
    asyncio.run(main())