tools/mpy-tool: Make work if run from another directory.

pfalcon · pfalcon · commit 473e85e2da84 · 2017-05-01T00:01:30.000+03:00
By making sure we don't add relative paths to sys.path.
diff --git a/tools/mpy-tool.py b/tools/mpy-tool.py
@@ -45,7 +45,7 @@
 import struct
 from collections import namedtuple
 
-sys.path.append('../py')
+sys.path.append(sys.path[0] + '/../py')
 import makeqstrdata as qstrutil
 
 class FreezeError(Exception):
