parsedump: Support running on both python2 and python3

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

1 files changed, 4 insertions, 4 deletions

diff --git a/klippy/parsedump.py b/klippy/parsedump.py
index 380446eb..6d419183 100755
--- a/klippy/parsedump.py
+++ b/klippy/parsedump.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python2
+#!/usr/bin/env python
 # Script to parse a serial port data dump
 #
 # Copyright (C) 2016  Kevin O'Connor <kevin@koconnor.net>
@@ -23,12 +23,12 @@ def main():
 
     f = open(data_filename, 'rb')
     fd = f.fileno()
-    data = ""
+    data = bytearray()
     while 1:
         newdata = os.read(fd, 4096)
         if not newdata:
             break
-        data += newdata
+        data += bytearray(newdata)
         while 1:
             l = mp.check_packet(data)
             if l == 0:
@@ -37,7 +37,7 @@ def main():
                 logging.error("Invalid data")
                 data = data[-l:]
                 continue
-            msgs = mp.dump(bytearray(data[:l]))
+            msgs = mp.dump(data[:l])
             sys.stdout.write('\n'.join(msgs[1:]) + '\n')
             data = data[l:]