From e591f6360e132022045f915776cb1d70ea3c9c14 Mon Sep 17 00:00:00 2001
From: Sergey B Kirpichev <skirpichev@gmail.com>
Date: Thu, 20 Aug 2015 13:03:59 +0300
Subject: [PATCH] Py3 fix for lambda_notation()

---
 sympy/parsing/sympy_parser.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sympy/parsing/sympy_parser.py b/sympy/parsing/sympy_parser.py
index c69505f5aaa..8f35d9a14c1 100644
--- a/sympy/parsing/sympy_parser.py
+++ b/sympy/parsing/sympy_parser.py
@@ -529,6 +529,9 @@ def lambda_notation(tokens, local_dict, global_dict):
     """
     result = []
     flag = False
+    if len(tokens) > 1:
+        if tokens[0][1] == 'utf-8' and tokens[1] == (NAME, 'lambda'):
+            tokens = tokens[1:]
     toknum, tokval = tokens[0]
     tokLen = len(tokens)
     if toknum == NAME and tokval == 'lambda':