From 5527cb2428df3bd7c31bbbd12384942b67398248 Mon Sep 17 00:00:00 2001
From: Philippe Teuwen <phil@teuwen.org>
Date: Fri, 21 Feb 2020 16:17:56 +0100
Subject: [PATCH] pm3_mfdread.py script python3 and warn for bitstring module

---
 tools/pm3_mfdread.py | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/tools/pm3_mfdread.py b/tools/pm3_mfdread.py
index 4172f1812..7e92ea19a 100755
--- a/tools/pm3_mfdread.py
+++ b/tools/pm3_mfdread.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
 #  mfdread.py - Mifare dumps parser in human readable format
@@ -18,8 +18,11 @@ import copy
 import sys
 from collections import defaultdict
 
-from bitstring import BitArray
-
+try:
+    from bitstring import BitArray
+except ModuleNotFoundError:
+    print("Please install bitstring module first.")
+    sys.exit(1)
 
 class Options:
     FORCE_1K = False
@@ -28,7 +31,7 @@ class Options:
 if len(sys.argv) == 1:
     sys.exit('''
 ------------------
-Usage: mfdread.py ./dump.mfd
+Usage: pm3_mfdread.py ./dump.mfd
 Mifare dumps reader.
 ''')