【pyppeteer】future: ＜Future finished exception=NetworkError(‘Protocol error (Target.detachFromTarge

The reason for the error: the pyppeteer framework is asynchronous, so the internal delay method must also be asynchronous, otherwise this error will be thrown

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

 

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

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

 

Official solution: https://github.com/miyakogi/pyppeteer/issues/194

 

error code:

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

Modified code [The delay here must be an asynchronous delay method, here time.sleep will report this error]:

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