diff --git a/rust_lib_demo/bin2hex.py b/rust_lib_demo/bin2hex.py
deleted file mode 100755
index af278bc..0000000
--- a/rust_lib_demo/bin2hex.py
+++ /dev/null
@@ -1,17 +0,0 @@
-#!/usr/bin/python3
-
-import sys
-import subprocess
-import struct
-
-with open(sys.argv[1], "rb") as f:
-        while True:
-            word = f.read(8)
-            if len(word) == 8:
-                print("%016x" % struct.unpack('Q', word));
-            elif len(word) == 4:
-                print("00000000%08x" % struct.unpack('I', word));
-            elif len(word) == 0:
-                exit(0);
-            else:
-                raise Exception("Bad length")