Fix python 3 compatibility

pkg/pip/setup_pip.py

@@ -21,6 +21,9 @@ from os import path
 req_file='../requirements_py' + str(sys.version_info[0]) + '.txt'
 
 with open(req_file) as reqf:
+    if sys.version_info[0] >= 3:
+        required = reqf.read().splitlines()
+    else:
         required = reqf.read().decode("utf-8").splitlines()
 
 # Get the app version