diff --git a/readthedocs/api/base.py b/readthedocs/api/base.py
index 4e3157ca39c..3d5893b2328 100644
--- a/readthedocs/api/base.py
+++ b/readthedocs/api/base.py
@@ -91,7 +91,7 @@ def sync_versions(self, request, **kwargs):
             self._sync_versions(project, data['tags'])
             self._sync_versions(project, data['branches'])
             deleted_versions = self._delete_versions(project, data)
-        except Exception, e:
+        except Exception as e:
             return self.create_response(
                 request,
                 {'exception': e.message},
diff --git a/readthedocs/api/utils.py b/readthedocs/api/utils.py
index cc4c2810382..56ec26d94cb 100644
--- a/readthedocs/api/utils.py
+++ b/readthedocs/api/utils.py
@@ -165,7 +165,7 @@ def obj_get_list(self, request=None, *args, **kwargs):
 
         try:
             return self.get_object_list(request).filter(**applicable_filters)
-        except ValueError, e:
+        except ValueError as e:
             raise NotFound(ugettext("Invalid resource lookup data provided "
                                     "(mismatched type).: %(error)s")
                            % {'error': e})
diff --git a/readthedocs/core/views.py b/readthedocs/core/views.py
index f7a593fa504..6b49f11e2bc 100644
--- a/readthedocs/core/views.py
+++ b/readthedocs/core/views.py
@@ -191,7 +191,7 @@ def _build_url(url, branches):
                 url, ' '.join(not_building))
             pc_log.info(msg)
             return HttpResponse(msg)
-    except Exception, e:
+    except Exception as e:
         if e.__class__ == NoProjectException:
             raise
         msg = "(URL Build) Failed: %s:%s" % (url, e)
diff --git a/readthedocs/oauth/migrations/0003_move_github.py b/readthedocs/oauth/migrations/0003_move_github.py
index d739a48078a..dda92d0371c 100644
--- a/readthedocs/oauth/migrations/0003_move_github.py
+++ b/readthedocs/oauth/migrations/0003_move_github.py
@@ -108,7 +108,7 @@ def forwards_move_repos(apps, schema_editor):
             else:
                 new_repo.clone_url = data.get('clone_url')
             new_repo.json = json.dumps(data)
-        except SyntaxError, ValueError:
+        except (SyntaxError, ValueError) as e:
             pass
         new_repo.save()
         log.info('Migrated project: %s', project.name)
@@ -149,7 +149,7 @@ def forwards_move_repos(apps, schema_editor):
                 new_repo.clone_url = clone_urls.get('ssh', project.git_url)
             else:
                 new_repo.clone_url = clone_urls.get('https', project.html_url)
-        except SyntaxError, ValueError:
+        except (SyntaxError, ValueError) as e:
             pass
         new_repo.save()
         log.info('Migrated project: %s', project.name)
diff --git a/readthedocs/projects/tasks.py b/readthedocs/projects/tasks.py
index 81f548546a5..e6c8fdd095a 100644
--- a/readthedocs/projects/tasks.py
+++ b/readthedocs/projects/tasks.py
@@ -118,7 +118,7 @@ def run(self, pk, version_pk=None, build_pk=None, record=True, docker=False,
                     _('Builds for this project are temporarily disabled'))
             try:
                 self.setup_vcs()
-            except vcs_support_utils.LockTimeout, e:
+            except vcs_support_utils.LockTimeout as e:
                 self.retry(exc=e, throw=False)
                 raise BuildEnvironmentError(
                     'Version locked, retrying in 5 minutes.',
@@ -452,7 +452,7 @@ def update_imported_docs(version_pk):
 
         try:
             api_v2.project(project.pk).sync_versions.post(version_post_data)
-        except Exception, e:
+        except Exception as e:
             print "Sync Versions Exception: %s" % e.message
     return ret_dict