diff -Naur a/Python-2.7.10/Parser/tokenizer.c b/Python-2.7.10/Parser/tokenizer.c
--- a/Python-2.7.10/Parser/tokenizer.c	2015-05-23 21:39:23.000000000 +0530
+++ b/Python-2.7.10/Parser/tokenizer.c	2015-08-13 10:46:39.202590962 +0530
@@ -235,10 +235,15 @@
 
             if (begin < t) {
                 char* r = new_string(begin, t - begin);
-                char* q = get_normal_name(r);
+                char* q;
+                if (!r)
+                   return NULL;
+                q = get_normal_name(r);
                 if (r != q) {
                     PyMem_FREE(r);
                     r = new_string(q, strlen(q));
+                    if (!r)
+                       return NULL; 
                 }
                 return r;
             }