Put non-output to sys.stderr

shiplu · shiplu · commit 00c60dc92b49 · 2019-06-13T14:42:49.000+02:00
diff --git a/zerorpc/cli.py b/zerorpc/cli.py
@@ -92,15 +92,15 @@
 def setup_links(args, socket):
     if args.bind:
         for endpoint in args.bind:
-            print('binding to "{0}"'.format(endpoint))
+            print('binding to "{0}"'.format(endpoint), file=sys.stderr)
             socket.bind(endpoint)
     addresses = []
     if args.address:
         addresses.append(args.address)
     if args.connect:
         addresses.extend(args.connect)
     for endpoint in addresses:
-        print('connecting to "{0}"'.format(endpoint))
+        print('connecting to "{0}"'.format(endpoint), file=sys.stderr)
         socket.connect(endpoint)
 
 
@@ -122,7 +122,7 @@ def run_server(args):
     if args.debug:
         server.debug = True
     setup_links(args, server)
-    print('serving "{0}"'.format(server_obj_path))
+    print('serving "{0}"'.format(server_obj_path), file=sys.stderr)
     return server.run()
 
 
@@ -245,22 +245,22 @@ def run_client(args):
     if not args.command:
         (longest_name_len, detailled_methods, service) = zerorpc_inspect(client,
                 long_doc=False, include_argspec=args.inspect)
-        print('[{0}]'.format(service))
+        print('[{0}]'.format(service), file=sys.stderr)
         if args.inspect:
             for (name, doc) in detailled_methods:
                 print(name)
         else:
             for (name, doc) in detailled_methods:
-                print('{0} {1}'.format(name.ljust(longest_name_len), doc))
+                print('{0} {1}'.format(name.ljust(longest_name_len), doc), file=sys.stderr)
         return
     if args.inspect:
         (longest_name_len, detailled_methods, service) = zerorpc_inspect(client,
                 method=args.command)
         if detailled_methods:
             (name, doc) = detailled_methods[0]
-            print('[{0}]\n{1}\n\n{2}\n'.format(service, name, doc))
+            print('[{0}]\n{1}\n\n{2}\n'.format(service, name, doc), file=sys.stderr)
         else:
-            print('[{0}]\nNo documentation for "{1}".'.format(service, args.command))
+            print('[{0}]\nNo documentation for "{1}".'.format(service, args.command), file=sys.stderr)
         return
     if args.json:
         call_args = [json.loads(x) for x in args.params]
