--- home/gustavo/Desktop/trace.py	2008-07-24 11:56:03.000000000 +0200
+++ usr/lib/python2.5/trace.py	2008-07-24 12:35:21.000000000 +0200
@@ -288,6 +288,8 @@
                 continue
             if filename.startswith("<doctest "):
                 continue
+	    if not filename.endswith((".pyc", ".pyo", ".py")):
+                continue
 
             if filename.endswith((".pyc", ".pyo")):
                 filename = filename[:-1]