@@ -5,6 +5,7 @@ module=cfg
 module=iniparser
 module=install_venv_common
 module=openstackkeyring
+module=strutils
 
 # The base module to hold the copy of openstack.common
 base=openstackclient
@@ -32,3 +32,27 @@ def __call__(self, parser, namespace, values, option_string=None):
             getattr(namespace, self.dest, {}).update([values.split('=', 1)])
         else:
             getattr(namespace, self.dest, {}).pop(values, None)
+
+
+class RangeAction(argparse.Action):
+    """A custom action to parse a single value or a range of values."""
+    def __call__(self, parser, namespace, values, option_string=None):
+        range = values.split(':')
+        if len(range) == 0:
+            # Nothing passed, return a zero default
+            setattr(namespace, self.dest, (0, 0))
+        elif len(range) == 1:
+            # Only a single value is present
+            setattr(namespace, self.dest, (int(range[0]), int(range[0])))
+        elif len(range) == 2:
+            # Range of two values
+            if int(range[0]) <= int(range[1]):
+                setattr(namespace, self.dest, (int(range[0]), int(range[1])))
+            else:
+                msg = "Invalid range, %s is not less than %s" % \
+                    (range[0], range[1])
+                raise argparse.ArgumentError(self, msg)
+        else:
+            # Too many values
+            msg = "Invalid range, too many values"
+            raise argparse.ArgumentError(self, msg)
@@ -16,11 +16,13 @@
 """Common client utilities"""
 
 import os
+import six
 import sys
 import time
 import uuid
 
 from openstackclient.common import exceptions
+from openstackclient.openstack.common import strutils
 
 
 def find_resource(manager, name_or_id):
@@ -84,7 +86,8 @@ def format_dict(data):
 
     output = ""
     for s in data:
-        output = output + s + "='" + data[s] + "', "
+        output = output + s + "='" + \
+            strutils.safe_encode(six.text_type(data[s])) + "', "
     return output[:-2]