From c5b677848794c9331115d89d28aaea6723948e5b Mon Sep 17 00:00:00 2001
From: LiangShe <liangsher@gmail.com>
Date: Thu, 13 Jul 2017 20:15:07 -0700
Subject: [PATCH] unpack result._traceback without assuming its size

Resolve ValueError: too many values to unpack
issue #53 #56 from original repo
---
 prettytensor/pretty_tensor_class.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/prettytensor/pretty_tensor_class.py b/prettytensor/pretty_tensor_class.py
index a96c693..d701cec 100644
--- a/prettytensor/pretty_tensor_class.py
+++ b/prettytensor/pretty_tensor_class.py
@@ -1332,7 +1332,8 @@ def _strip_unnecessary_contents_from_stack(result, processed):
     processed.add(result)
   trace = []
   found = False
-  for f, line_no, method, _ in result._traceback:
+  for trace_content in result._traceback:
+    f, line_no, method = trace_content[0:3]
     if (method in ('_replace_deferred', '_construct') and
         f.endswith('pretty_tensor_class.py')):
       found = True