Python：在 pyppeteer 中保持打开浏览器并创建 CDPSession

Question

我有两个问题暂时无法解决。1.我想让浏览器保持运行，这样我就可以使用pyppeteer.launcher.connect()函数重新连接，但即使我不调用它，它似乎也被关闭了pyppeteer.browser.Browser.close()。测试01.py：import asynciofrom pyppeteer import launch, connectasync def fetch():    browser = await launch(        headless=False,        args=['--no-sandbox']    )    print(f'Endpoint: {browser.wsEndpoint}')    await browser.disconnect()loop = asyncio.get_event_loop()loop.run_until_complete(fetch())$ python test01.pyEndpoint: ws://127.0.0.1:51757/devtools/browser/00e917a9-c031-499a-a8ee-ca4090ebd3fe$ curl -i -N -H "Connection: Upgrade" -H "Upgrade: websocket" http://127.0.0.1:51757curl: (7) Failed to connect to 127.0.0.1 port 51757: Connection refused2.如何创建 CDP 会话。此代码应该打开另一个浏览器窗口，但它没有按预期工作：测试02.pyimport asyncioimport timefrom pyppeteer import launch, connectasync def fetch():    browser = await launch(        headless=False,        args=['--no-sandbox']    )    page = await browser.newPage()    cdp = await page.target.createCDPSession()    await cdp.send('Target.createBrowserContext')    time.sleep(5)    await browser.disconnect()loop = asyncio.get_event_loop()loop.run_until_complete(fetch())$ python test02.pyFuture exception was never retrievedfuture: <Future finished exception=NetworkError('Protocol error Target.sendMessageToTarget: Target closed.',)>pyppeteer.errors.NetworkError: Protocol error Target.sendMessageToTarget: Target closed.