Change #! line to modern usage; also chmod +x
diff --git a/Demo/zlib/minigzip.py b/Demo/zlib/minigzip.py
index eefdc39..dc99d9b 100755
--- a/Demo/zlib/minigzip.py
+++ b/Demo/zlib/minigzip.py
@@ -1,4 +1,4 @@
-#!/usr/local/bin/python
+#!/usr/bin/env python
# Demo program for zlib; it compresses or decompresses files, but *doesn't*
# delete the original. This doesn't support all of gzip's options.
diff --git a/Demo/zlib/zlibdemo.py b/Demo/zlib/zlibdemo.py
index fff1750..7c56e3e 100755
--- a/Demo/zlib/zlibdemo.py
+++ b/Demo/zlib/zlibdemo.py
@@ -1,4 +1,4 @@
-#!/usr/local/bin/python
+#!/usr/bin/env python
import zlib, sys
if len(sys.argv)>1: filename=sys.argv[1]