diff --git a/tools/repo_pull/gerrit.py b/tools/repo_pull/gerrit.py
index 1fecafb55..1d63658ec 100755
--- a/tools/repo_pull/gerrit.py
+++ b/tools/repo_pull/gerrit.py
@@ -28,28 +28,23 @@ import sys
 import xml.dom.minidom
 
 try:
-    from urllib.error import HTTPError  # PY3
-except ImportError:
-    from urllib2 import HTTPError  # PY2
-
-try:
+    # PY3
+    from urllib.error import HTTPError
+    from urllib.parse import urlencode, urlparse
     from urllib.request import (
-        HTTPBasicAuthHandler, Request, build_opener)  # PY3
+        HTTPBasicAuthHandler, Request, build_opener
+    )
 except ImportError:
+    # PY2
+    from urllib import urlencode
     from urllib2 import (
-        HTTPBasicAuthHandler, Request, build_opener)  # PY2
+        HTTPBasicAuthHandler, HTTPError, Request, build_opener
+    )
+    from urlparse import urlparse
 
 try:
-    # pylint: disable=ungrouped-imports
-    from urllib.parse import urlencode, urlparse  # PY3
-except ImportError:
-    # pylint: disable=ungrouped-imports
-    from urllib import urlencode  # PY2
-    from urlparse import urlparse  # PY2
-
-
-try:
-    from subprocess import PIPE, run  # PY3.5
+    # PY3.5
+    from subprocess import PIPE, run
 except ImportError:
     from subprocess import CalledProcessError, PIPE, Popen