Fixed: Issue where HTTPError would not be caught correctly

sgbackend/mail.py

@@ -4,11 +4,6 @@
 import sys
 from email.mime.base import MIMEBase
 
-try:
-    from urllib.error import HTTPError  # pragma: no cover
-except ImportError:  # pragma: no cover
-    from urllib2 import HTTPError  # pragma: no cover
-
 try:
     import rfc822
 except ImportError:
@@ -18,6 +13,7 @@
 from django.core.exceptions import ImproperlyConfigured
 from django.core.mail import EmailMultiAlternatives
 from django.core.mail.backends.base import BaseEmailBackend
+from python_http_client import exceptions
 
 import sendgrid
 from sendgrid.helpers.mail import (
@@ -63,7 +59,7 @@ def send_messages(self, emails):
             try:
                 self.sg.client.mail.send.post(request_body=mail)
                 count += 1
-            except HTTPError as e:
+            except exceptions.HTTPError as e:
                 if not self.fail_silently:
                     raise
         return count