错误原因：pyppeteer框架为异步，为此内部延迟方法也必须使用异步，否则会抛出此错误

future: <Future finished exception=NetworkError('Protocol error (Target.detachFromTarget): No session with given id')

参考：https://github.com/pyppeteer/pyppeteer/issues/89

参考https://github.com/ranksense/url-inspector-automator/issues/1

官方解决方案：https://github.com/miyakogi/pyppeteer/issues/194

错误代码：

if some:
   do something
else:
    try:
       do something
    except Exception:
        do something
time.sleep(0.5)
try:
    do something
except Exception:
    pass

修改后的代码【这里的延迟必须是异步延迟方法,这里time.sleep会此报错】：

if some:
   do something
else:
    try:
       do something
    except Exception:
        do something
await asyncio.sleep(0.5) # or await page.waitFor(10)
try:
    do something
except Exception:
    pass