fix #309 #312

httprunner/utils.py

@@ -333,6 +333,8 @@ def print_io(in_out):
         for variable, value in in_out.items():
             if isinstance(value, tuple):
                 continue
+            elif isinstance(value, dict):
+                value = json.dumps(value)
 
             if is_py2:
                 if isinstance(variable, unicode):