Solve some py3 compatibilty issues

1. replaced dict.keys() with six.iterkeys(dict)
2. replaced map with six.moves.map

Change-Id: I4b80e12a4686fd6f5857c2322de13b1245e72083

designateclient/cli/base.py

@@ -106,17 +106,17 @@ class ListCommand(Command, Lister):
 
 class GetCommand(Command, ShowOne):
     def post_execute(self, results):
-        return results.keys(), results.values()
+        return list(six.iterkeys(results)), list(six.itervalues(results))
 
 
 class CreateCommand(Command, ShowOne):
     def post_execute(self, results):
-        return results.keys(), results.values()
+        return list(six.iterkeys(results)), list(six.itervalues(results))
 
 
 class UpdateCommand(Command, ShowOne):
     def post_execute(self, results):
-        return results.keys(), results.values()
+        return list(six.iterkeys(results)), list(six.itervalues(results))
 
 
 class DeleteCommand(Command, ShowOne):

designateclient/client.py

@@ -124,6 +124,6 @@ def Client(version, *args, **kwargs):  # noqa
     versions = get_versions()
     if version not in versions:
         msg = 'Version %s is not supported, use one of (%s)' % (
-            version, versions.keys())
+            version, list(six.iterkeys(versions)))
         raise exceptions.UnsupportedVersion(msg)
     return versions[version](*args, **kwargs)

designateclient/utils.py

@@ -23,6 +23,7 @@ from keystoneclient.auth.identity import generic
 from keystoneclient.auth import token_endpoint
 from keystoneclient import session as ks_session
 import pkg_resources
+import six
 
 from designateclient import exceptions
 
@@ -94,7 +95,8 @@ def get_columns(data):
     def _seen(col):
         columns.add(str(col))
 
-    map(lambda item: map(_seen, item.keys()), data)
+    six.moves.map(lambda item: six.moves.map(_seen,
+                  list(six.iterkeys(item))), data)
     return list(columns)
 
 

designateclient/warlock.py

@@ -20,6 +20,7 @@ import copy
 import logging
 
 import jsonschema
+import six
 
 LOG = logging.getLogger(__name__)
 
@@ -112,19 +113,19 @@ def model_factory(schema):
             dict.update(self, other)
 
         def iteritems(self):
-            return copy.deepcopy(dict(self)).iteritems()
+            return six.iteritems(copy.deepcopy(dict(self)))
 
         def items(self):
-            return copy.deepcopy(dict(self)).items()
+            return list(six.iteritems(copy.deepcopy(dict(self))))
 
         def itervalues(self):
-            return copy.deepcopy(dict(self)).itervalues()
+            return six.itervalues(copy.deepcopy(dict(self)))
 
         def keys(self):
-            return copy.deepcopy(dict(self)).keys()
+            return list(six.iterkeys(copy.deepcopy(dict(self))))
 
         def values(self):
-            return copy.deepcopy(dict(self)).values()
+            return list(six.itervalues(copy.deepcopy(dict(self))))
 
         @property
         def changes(self):