diff --git a/cygdb.py b/cygdb.py
old mode 100644
new mode 100755
diff --git a/runtests.py b/runtests.py
old mode 100644
new mode 100755
index 79aa1fd7427..8d92ec7ceab
--- a/runtests.py
+++ b/runtests.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/env python
 
 import os
 import sys
diff --git a/setupegg.py b/setupegg.py
old mode 100644
new mode 100755