Stop using function deprecated in Python 3

Python 3 deprecated the logger.warn method in favor of warning.

 DeprecationWarning: The 'warn' method is deprecated, use 'warning'
 instead

Change-Id: Idbd4de3c7c631fb2c235701c9b300c37a90d9538

2 files changed, 11 insertions, 9 deletions

diff --git a/keystoneclient/auth/identity/base.py b/keystoneclient/auth/identity/base.py
index 8b8d705..f785192 100644
--- a/keystoneclient/auth/identity/base.py
+++ b/keystoneclient/auth/identity/base.py
@@ -208,9 +208,10 @@ class BaseIdentityPlugin(base.BaseAuthPlugin):
 
         else:
             if not service_type:
-                LOG.warn(_LW('Plugin cannot return an endpoint without '
-                             'knowing the service type that is required. Add '
-                             'service_type to endpoint filtering data.'))
+                LOG.warning(_LW(
+                    'Plugin cannot return an endpoint without knowing the '
+                    'service type that is required. Add service_type to '
+                    'endpoint filtering data.'))
                 return None
 
             if not interface:
@@ -243,9 +244,10 @@ class BaseIdentityPlugin(base.BaseAuthPlugin):
             # NOTE(jamielennox): Again if we can't contact the server we fall
             # back to just returning the URL from the catalog. This may not be
             # the best default but we need it for now.
-            LOG.warn(_LW('Failed to contact the endpoint at %s for discovery. '
-                         'Fallback to using that endpoint as the base url.'),
-                     url)
+            LOG.warning(_LW(
+                'Failed to contact the endpoint at %s for discovery. Fallback '
+                'to using that endpoint as the base url.'),
+                url)
         else:
             url = disc.url_for(version)
 
diff --git a/keystoneclient/auth/identity/generic/base.py b/keystoneclient/auth/identity/generic/base.py
index 7e148d2..0b87d06 100644
--- a/keystoneclient/auth/identity/generic/base.py
+++ b/keystoneclient/auth/identity/generic/base.py
@@ -130,9 +130,9 @@ class BaseGenericPlugin(base.BaseIdentityPlugin):
         except (exceptions.DiscoveryFailure,
                 exceptions.HTTPError,
                 exceptions.ConnectionError):
-            LOG.warn(_LW('Discovering versions from the identity service '
-                         'failed when creating the password plugin. '
-                         'Attempting to determine version from URL.'))
+            LOG.warning(_LW('Discovering versions from the identity service '
+                            'failed when creating the password plugin. '
+                            'Attempting to determine version from URL.'))
 
             url_parts = urlparse.urlparse(self.auth_url)
             path = url_parts.path.lower()