Handle OpenSSL.SSL.Error

JaredPilbeam2 — Sat, 11 Dec 2021 21:52:42 GMT

I'm using beautifulsoup to scrape a list of URLs for Covid-19 info which in turn is used to update our ArcGIS Hub page. Once in a while, a URL is broke and I get a bad handshake error. I want my script to handle this then move on. Currently, there is one URL in the list that is broke, and that one is causing the error(s) here. I tried the following exception block on these errors to no avail.

I also tried these approaches to no avail:

while loop‍‍‍

except requests.exeptions.SSLError as error:‍‍‍

except...
    print("error")‍‍‍‍

try:
    item = soup.find(string=re.compile("Grab and Go")) if   
soup.find(string=re.compile("Grab and Go")) else "N/A"
        print(item)
except (OpenSSL.SSL.Error, ssl.SSLError, urllib3.exceptions.MaxRetryError, 
requests.exceptions.SSLError) as error:
        print(error)
        break‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

Traceback (most recent call last):
  File "C:\Program Files\ArcGIS\Pro\bin\Python\envs\arcgispro-py3\lib\site-packages\urllib3\contrib\pyopenssl.py", line 456, in wrap_socket
    cnx.do_handshake()
  File "C:\Program Files\ArcGIS\Pro\bin\Python\envs\arcgispro-py3\lib\site-packages\OpenSSL\SSL.py", line 1915, in do_handshake
    self._raise_ssl_error(self._ssl, result)
  File "C:\Program Files\ArcGIS\Pro\bin\Python\envs\arcgispro-py3\lib\site-packages\OpenSSL\SSL.py", line 1647, in _raise_ssl_error
    _raise_current_error()
  File "C:\Program Files\ArcGIS\Pro\bin\Python\envs\arcgispro-py3\lib\site-packages\OpenSSL\_util.py", line 54, in exception_from_error_queue
    raise exception_type(errors)
OpenSSL.SSL.Error: [('SSL routines', 'tls_process_server_certificate', 'certificate verify failed')]

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Program Files\ArcGIS\Pro\bin\Python\envs\arcgispro-py3\lib\site-packages\urllib3\connectionpool.py", line 600, in urlopen
    chunked=chunked)
  File "C:\Program Files\ArcGIS\Pro\bin\Python\envs\arcgispro-py3\lib\site-packages\urllib3\connectionpool.py", line 343, in _make_request
    self._validate_conn(conn)
  File "C:\Program Files\ArcGIS\Pro\bin\Python\envs\arcgispro-py3\lib\site-packages\urllib3\connectionpool.py", line 839, in _validate_conn
    conn.connect()
  File "C:\Program Files\ArcGIS\Pro\bin\Python\envs\arcgispro-py3\lib\site-packages\urllib3\connection.py", line 344, in connect
    ssl_context=context)
  File "C:\Program Files\ArcGIS\Pro\bin\Python\envs\arcgispro-py3\lib\site-packages\urllib3\util\ssl_.py", line 347, in ssl_wrap_socket
    return context.wrap_socket(sock, server_hostname=server_hostname)
  File "C:\Program Files\ArcGIS\Pro\bin\Python\envs\arcgispro-py3\lib\site-packages\urllib3\contrib\pyopenssl.py", line 462, in wrap_socket
    raise ssl.SSLError('bad handshake: %r' % e)
ssl.SSLError: ("bad handshake: Error([('SSL routines', 'tls_process_server_certificate', 'certificate verify failed')],)",)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Program Files\ArcGIS\Pro\bin\Python\envs\arcgispro-py3\lib\site-packages\requests\adapters.py", line 449, in send
    timeout=timeout
  File "C:\Program Files\ArcGIS\Pro\bin\Python\envs\arcgispro-py3\lib\site-packages\urllib3\connectionpool.py", line 638, in urlopen
    _stacktrace=sys.exc_info()[2])
  File "C:\Program Files\ArcGIS\Pro\bin\Python\envs\arcgispro-py3\lib\site-packages\urllib3\util\retry.py", line 399, in increment
    raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='www.cm201u.org', port=443): Max retries exceeded with url: /news_/free_breakfast___lunch_pick-up_days (Caused by SSLError(SSLError("bad handshake: Error([('SSL routines', 'tls_process_server_certificate', 'certificate verify failed')],)",),))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "pathtofile", line 33, in <module>
    response = requests.get(url, headers=headers)
  File "C:\Program Files\ArcGIS\Pro\bin\Python\envs\arcgispro-py3\lib\site-packages\requests\api.py", line 75, in get
    return request('get', url, params=params, **kwargs)
  File "C:\Program Files\ArcGIS\Pro\bin\Python\envs\arcgispro-py3\lib\site-packages\requests\api.py", line 60, in request
    return session.request(method=method, url=url, **kwargs)
  File "C:\Program Files\ArcGIS\Pro\bin\Python\envs\arcgispro-py3\lib\site-packages\requests\sessions.py", line 533, in request
    resp = self.send(prep, **send_kwargs)
  File "C:\Program Files\ArcGIS\Pro\bin\Python\envs\arcgispro-py3\lib\site-packages\requests\sessions.py", line 646, in send
    r = adapter.send(request, **kwargs)
  File "C:\Program Files\ArcGIS\Pro\bin\Python\envs\arcgispro-py3\lib\site-packages\requests\adapters.py", line 514, in send
    raise SSLError(e, request=request)
requests.exceptions.SSLError: HTTPSConnectionPool(host='www.cm201u.org', port=443): Max retries exceeded with url: /news_/free_breakfast___lunch_pick-up_days (Caused by SSLError(SSLError("bad handshake: Error([('SSL routines', 'tls_process_server_certificate', 'certificate verify failed')],)",),))‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

Re: Handle OpenSSL.SSL.Error

JoshuaBixby — Fri, 05 Jun 2020 03:42:58 GMT

At the end of the day, you want to pass on any error that requests is generating whether it is DNS, SSL, timeout, etc...; so just catch requests.exceptions.RequestException and only that.

Re: Handle OpenSSL.SSL.Error

JaredPilbeam2 — Sat, 11 Dec 2021 21:52:45 GMT

Joshua,

OK, thanks. I tried that. But, I got the same errors in the same order as before.

for url in urls:
    #download the homepage
    response = requests.get(url, headers=headers)
    #parse the downloaded homepage and grab all text
    soup = BeautifulSoup(response.text, "lxml")
    try:
        item = soup.find(string=re.compile("Grab and Go")) if soup.find(string=re.compile("Grab and Go")) else "N/A"
        print(item)
    except requests.exceptions.RequestException as error:
        print('there is a requests error')‍‍‍‍‍‍‍‍‍‍

Re: Handle OpenSSL.SSL.Error

Luke_Pinner — Sat, 06 Jun 2020 03:47:56 GMT

You haven't got your requests.get call inside the try block, you have unrelated code in there, the soup.find stuff.

Re: Handle OpenSSL.SSL.Error

JaredPilbeam2 — Mon, 08 Jun 2020 17:00:06 GMT

Thank you. That was it!

Something else. The URLs are in a list. Is there an easy way to identify the URL that threw the error? I'm starting a new thread here: https://community.esri.com/message/933511-request-module-try-except-error

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