normalize shebang lines to #!/usr/bin/env python
diff --git a/Mac/scripts/zappycfiles.py b/Mac/scripts/zappycfiles.py
index a8193c1..d829159 100644
--- a/Mac/scripts/zappycfiles.py
+++ b/Mac/scripts/zappycfiles.py
@@ -1,4 +1,4 @@
-#!/usr/local/bin/python
+#!/usr/bin/env python
 """Recursively zap all .pyc and .pyo files"""
 import os
 import sys