test: adjust style for python linter (NFC)

Reorganise some of the imports in `process-stats-dir` to appease the
linter.

Author: compnerd

utils/process-stats-dir.py

@@ -26,20 +26,22 @@
 import sys
 import time
 import urllib
+from collections import namedtuple
+from operator import attrgetter
+
+from jobstats import (list_stats_dir_profiles,
+                      load_stats_dir, merge_all_jobstats)
+
 if sys.version_info[0] < 3:
     import urllib2
     Request = urllib2.Request
     URLOpen = urllib2.urlopen
 else:
-    import urllib.request, urllib.parse, urllib.error
+    import urllib.request
+    import urllib.parse
+    import urllib.error
     Request = urllib.request.Request
     URLOpen = urllib.request.urlopen
-from collections import namedtuple
-from operator import attrgetter
-
-from jobstats import (list_stats_dir_profiles,
-                      load_stats_dir, merge_all_jobstats)
-
 
 MODULE_PAT = re.compile(r'^(\w+)\.')