apiclient import fix

Author: mhaseebtariq

pandas/io/gbq.py

@@ -181,12 +181,11 @@ def get_application_default_credentials(self):
             from googleapiclient.discovery import build
             from googleapiclient.errors import HttpError
         except ImportError:
+            if not oauth2client_library_imported:
+                return None
             from apiclient.discovery import build
             from apiclient.errors import HttpError
 
-        if not oauth2client_library_imported:
-            return None
-
         credentials = None
         try:
             credentials = GoogleCredentials.get_application_default()