Python requests exception handling

Question

How to handle exceptions with python library requests? For example how to check is PC connected to internet?

When I try

try:
    requests.get(\'http         


        

Answer 1

As per the documentation, I have added the below points:-

1. In the event of a network problem (refused connection e.g internet issue), Requests will raise a ConnectionError exception.

   try:
      requests.get('http://www.google.com')
   except requests.ConnectionError:
      # handle ConnectionError the exception
   

2. In the event of the rare invalid HTTP response, Requests will raise an HTTPError exception. Response.raise_for_status() will raise an HTTPError if the HTTP request returned an unsuccessful status code.

   try:
      r = requests.get('http://www.google.com/nowhere')
      r.raise_for_status()
   except requests.exceptions.HTTPError as err:
      #handle the HTTPError request here
   

3. In the event of times out of request, a Timeout exception is raised.

   You can tell Requests to stop waiting for a response after a given number of seconds, with a timeout arg.

   requests.get('https://github.com/', timeout=0.001)
   # timeout is not a time limit on the entire response download; rather, 
   # an exception is raised if the server has not issued a response for
   # timeout seconds
   

4. All exceptions that Requests explicitly raises inherit from requests.exceptions.RequestException. So a base handler can look like,

   try:
      r = requests.get(url)
   except requests.exceptions.RequestException as e:
      # handle all the errors here