Code simplification, this is done bellow already

theano/gof/utils.py

@@ -67,9 +67,9 @@ def add_tag_trace(thing, user_line=1):
     tr = simple_extract_stack(limit=limit)[:-1]
     # Different python version use different sementic for
     # limit. python 2.7 include the call to extrack_stack. The -1 get
-    # rid of it.  We also want to get rid of the add_tag_trace call.
-    if tr and "add_tag_trace" in tr[-1][-1]:
-        tr = tr[:-1]
+    # rid of it.
+
+    # Get rid of Theano internal
     while tr:
         file_path = tr[-1][0]
         rm = False