py3: update all the things

Change-Id: I5e11b46b7c2f7f8760d6c0e713ca99c1e88b7cd3
diff --git a/tools/getb64key.py b/tools/getb64key.py
index a0cd1c3..976a157 100755
--- a/tools/getb64key.py
+++ b/tools/getb64key.py
@@ -1,17 +1,18 @@
 #!/usr/bin/env python
 
+from __future__ import print_function
+
 import base64
 import sys
-import os
 
 pkFile = open(sys.argv[1], 'rb').readlines()
 base64Key = ""
 inCert = False
 for line in pkFile:
-    if line.startswith("-"):
+    if line.startswith(b"-"):
         inCert = not inCert
         continue
 
     base64Key += line.strip()
 
-print base64.b16encode(base64.b64decode(base64Key)).lower()
+print(base64.b16encode(base64.b64decode(base64Key)).lower())