facebook_access_token, url, caption)facebook_result = urlfetch.fetch/data/home/apps/s~digibackapi/1.362663258877230387/main.py", line 512, in get
facebook_result = urlfet
我用urlfetch测试人们提供的URL,以捕捉错误的链接。result = urlfetch.fetch(url)except urlfetch.DNSLookupFailedErrorself.error(400) 'Sorry, there was a problem with URL "' + url + '"