normalize shebang lines to #!/usr/bin/env python
diff --git a/Demo/cgi/cgi3.py b/Demo/cgi/cgi3.py
index a3421b5..6693a86 100755
--- a/Demo/cgi/cgi3.py
+++ b/Demo/cgi/cgi3.py
@@ -1,4 +1,4 @@
-#!/usr/local/bin/python
+#!/usr/bin/env python
 
 """CGI test 3 (persistent data)."""