Stop at exception in my, not library code

Question

I\'m developing an app using a Python library urllib and it is sometimes rising exceptions due to not being able to access an URL.

However, the exception is

Answer 1

urllib can raise a lot of exceptions.

You need to put a try block around the call into urllib and figure how to handle the exceptions for example:

try:
    resp = urllib.request.urlopen(req)   

except URLError as e:
    # analyse e to figure out the detail
    ...

Certainly under python2's urllib lots of other exceptions are thrown. I'm not sure about python3's urllib.