Use logger instead of print

... so that users can filter messages more easily.

Change-Id: I23cce4f2d0b2f8a133a0a2f9fc021266b4058663
Signed-off-by: Takashi Kajinami <kajinamit@oss.nttdata.com>

zaqarclient/queues/v2/cli.py

@@ -113,7 +113,7 @@ class ListQueues(command.Lister):
 
         data, count = client.queues(**kwargs)
         if count:
-            print("Queues in total: %s" % count)
+            self.log.debug("Queues in total: %s" % count)
         columns = tuple(columns)
         return (columns, (utils.get_item_properties(s, columns) for s in data))
 
@@ -1091,9 +1091,9 @@ class CreateSignedUrl(command.ShowOne):
 
         paths = parsed_args.paths.split(',')
         if not all([p in self.allowed_paths for p in paths]):
-            print("Invalid path supplied! Received {}. "
-                  "Valid paths are: messages, subscriptions, "
-                  "claims".format(','.join(paths)))
+            self.log.warning("Invalid path supplied! Received %s. "
+                             "Valid paths are: messages, subscriptions, "
+                             "claims", ','.join(paths))
 
         kwargs = {
             'methods': parsed_args.methods.split(','),

zaqarclient/transport/response.py

@@ -15,6 +15,11 @@
 
 import json
 
+from oslo_log import log as logging
+
+
+LOG = logging.getLogger(__name__)
+
 
 class Response:
     """Common response class for Zaqarclient.
@@ -51,5 +56,5 @@ class Response:
                 self._deserialized = json.loads(self.content)
             return self._deserialized
         except ValueError as ex:
-            print("Response is not a JSON object.", ex)
+            LOG.warning("Response is not a JSON object.: %s", ex)
         return None