[py] submodule update

ddemidov · ddemidov · commit 611517e98bfb · 2015-05-18T06:13:13.000+03:00
diff --git a/python b/python
@@ -1 +1 @@
-Subproject commit 255fee5207160a4f084da9aaf3393dd13a82d862
+Subproject commit 5a04dcc858fe1cb54c9427b04541f8fe6ad7bc51
