--- /dev/fd/63	2017-08-16 13:46:07.901340419 +0800
+++ Lib/json/tool.py	2017-08-16 13:30:29.616928043 +0800
@@ -27,11 +27,14 @@
                         help='write the output of infile to outfile')
     parser.add_argument('--sort-keys', action='store_true', default=False,
                         help='sort the output of dictionaries alphabetically by key')
+    parser.add_argument('--no-escape', action='store_true', default=False,
+                        help='no characters escaped')
     options = parser.parse_args()
 
     infile = options.infile or sys.stdin
     outfile = options.outfile or sys.stdout
     sort_keys = options.sort_keys
+    ensure_ascii = not options.no_escape
     with infile:
         try:
             if sort_keys:
@@ -42,7 +45,7 @@
         except ValueError as e:
             raise SystemExit(e)
     with outfile:
-        json.dump(obj, outfile, sort_keys=sort_keys, indent=4)
+        json.dump(obj, outfile, ensure_ascii=ensure_ascii, sort_keys=sort_keys, indent=4)
         outfile.write('\n')