Extra 'u' in output of cinder cli commands

In output of cinder show command, below fields contains extra 'u'
character being unicode:
1. volume_image_metadata
2. metadata

In output of "cinder credentials", below field contains extra 'u'
1. roles

In output of "cinder qos-create", below field contains extra 'u'
1. specs

In output of "cinder qos-list", below field contains extra 'u'
1. specs

In output of "cinder extra-specs-list", below field contains extra 'u'
1. extra_specs

In output of "cinder qos-show", below field contains extra 'u'
1. specs

Change-Id: I8be32f117ddc29b087ee872ff065c175dd70b372
Closes-Bug: #1538413
Closes-Bug: #1538415

cinderclient/utils.py

@@ -161,6 +161,13 @@ def print_list(objs, fields, exclude_unavailable=False, formatters=None,
     pt = prettytable.PrettyTable((f for f in fields), caching=False)
     pt.aligns = ['l' for f in fields]
     for row in rows:
+        count = 0
+        # Converts unicode values in dictionary to string
+        for part in row:
+            count = count + 1
+            if isinstance(part, dict):
+                part = unicode_key_value_to_string(part)
+                row[count - 1] = part
         pt.add_row(row)
 
     if sortby_index is None:
@@ -170,11 +177,25 @@ def print_list(objs, fields, exclude_unavailable=False, formatters=None,
     _print(pt, order_by)
 
 
-def print_dict(d, property="Property"):
+def unicode_key_value_to_string(dictionary):
+    """Recursively converts dictionary keys to strings."""
+    if not isinstance(dictionary, dict):
+        return dictionary
+    return dict((str(k), str(unicode_key_value_to_string(v)))
+        for k, v in dictionary.items())
+
+
+def print_dict(d, property="Property", formatters=None):
     pt = prettytable.PrettyTable([property, 'Value'], caching=False)
     pt.aligns = ['l', 'l']
+    formatters = formatters or {}
+
     for r in six.iteritems(d):
         r = list(r)
+
+        if r[0] in formatters:
+            r[1] = unicode_key_value_to_string(r[1])
+
         if isinstance(r[1], six.string_types) and "\r" in r[1]:
             r[1] = r[1].replace("\r", " ")
         pt.add_row(r)

cinderclient/v2/shell.py

@@ -293,7 +293,8 @@ def do_show(cs, args):
     info.update(volume._info)
 
     info.pop('links', None)
-    utils.print_dict(info)
+    utils.print_dict(info,
+                     formatters=['metadata', 'volume_image_metadata'])
 
 
 class CheckSizeArgForCreate(argparse.Action):
@@ -1001,9 +1002,12 @@ def do_endpoints(cs, args):
 def do_credentials(cs, args):
     """Shows user credentials returned from auth."""
     catalog = cs.client.service_catalog.catalog
-    utils.print_dict(catalog['user'], "User Credentials")
-    utils.print_dict(catalog['token'], "Token")
 
+    # formatters defines field to be converted from unicode to string
+    utils.print_dict(catalog['user'], "User Credentials",
+                     formatters=['domain', 'roles'])
+    utils.print_dict(catalog['token'], "Token",
+                     formatters=['audit_ids', 'tenant'])
 
 _quota_resources = ['volumes', 'snapshots', 'gigabytes',
                     'backups', 'backup_gigabytes',
@@ -1925,7 +1929,9 @@ def do_encryption_type_delete(cs, args):
 
 
 def _print_qos_specs(qos_specs):
-    utils.print_dict(qos_specs._info)
+
+    # formatters defines field to be converted from unicode to string
+    utils.print_dict(qos_specs._info, formatters=['specs'])
 
 
 def _print_qos_specs_list(q_specs):