Use utils.exit rather than print+sys.exit

This replaces the use of a pattern along the lines of

    print(error message)
    sys.exit(1)

in a couple of place in the shell. utils.exit does much the same job,
but outputs to stderr.

Change-Id: I1d3b52e0685772c10aa806a8f208eb6dd7a0e7ef

1 files changed, 4 insertions, 5 deletions

diff --git a/glanceclient/v1/shell.py b/glanceclient/v1/shell.py
index 7cd8081..0f38665 100644
--- a/glanceclient/v1/shell.py
+++ b/glanceclient/v1/shell.py
@@ -18,7 +18,6 @@ from __future__ import print_function
 import copy
 import functools
 import six
-import sys
 
 from oslo.utils import encodeutils
 from oslo.utils import strutils
@@ -349,15 +348,15 @@ def do_image_delete(gc, args):
 def do_member_list(gc, args):
     """Describe sharing permissions by image or tenant."""
     if args.image_id and args.tenant_id:
-        print('Unable to filter members by both --image-id and --tenant-id.')
-        sys.exit(1)
+        utils.exit('Unable to filter members by both --image-id and'
+                   ' --tenant-id.')
     elif args.image_id:
         kwargs = {'image': args.image_id}
     elif args.tenant_id:
         kwargs = {'member': args.tenant_id}
     else:
-        print('Unable to list all members. Specify --image-id or --tenant-id')
-        sys.exit(1)
+        utils.exit('Unable to list all members. Specify --image-id or'
+                   ' --tenant-id')
 
     members = gc.image_members.list(**kwargs)
     columns = ['Image ID', 'Member ID', 'Can Share']