--- cgitb.py	Mon Dec  7 01:39:07 2015
+++ cgitb-patched.py	Tue May 31 09:56:44 2016
@@ -240,11 +240,14 @@
         rows.append('\n'.join(dump))
         frames.append('\n%s\n' % '\n'.join(rows))
 
     exception = ['%s: %s' % (str(etype), str(evalue))]
     for name in dir(evalue):
-        value = pydoc.text.repr(getattr(evalue, name))
+        attr_val = getattr(evalue, name)
+        if callable(attr_val):
+            continue
+        value = pydoc.text.repr(attr_val)
         exception.append('\n%s%s = %s' % (" "*4, name, value))
 
     return head + ''.join(frames) + ''.join(exception) + '''
 
 The above is a description of an error in a Python program.  Here is