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Fixes 178220183/

util/dict_wrappers.py

@@ -62,7 +62,12 @@ class JSONPathDict(object):
   def get(self, path, not_found_handler=None):
     """ Returns the value found at the given path. Path is a json-path expression. """
     jsonpath_expr = parse(path)
-    matches = jsonpath_expr.find(self._object)
+
+    try:
+      matches = jsonpath_expr.find(self._object)
+    except IndexError:
+      return None
+
     if not matches:
       return not_found_handler() if not_found_handler else None