I'm attempting to download some data from an internal server using Python. Since it's internal, it uses a self-signed certificate. (We don't want to pay Verisign for servers that will never appear "in the wild.") The Python 2.6 version of the code worked fine.
response = urllib2.urlopen(URL)
data = csv.reader(response)
I'm now trying to update to Python 3.4 (long story, don't ask.) However, using Python 3's urllib fails:
response = urllib.request.urlopen(URL)
It throws a CERTIFICATE_VERIFY_FAILED error.
urllib.error.URLError: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:600)>
In reading around the web, apparently Python 2.6 urllib2 doesn't bother to verify certificates. Some versions of urllib allow "verify=False" to be passed to the method signature, but that doesn't appear to work in Python 3.4.
Does anyone know how I can get around this? I'd like to avoid using the Requests package because of corporate security guidelines.