diff --git a/__init__.py b/__init__.py
index 0a4027a..e69de29 100644
--- a/__init__.py
+++ b/__init__.py
@@ -1,8 +0,0 @@
-#!/usr/bin/python
-# -*- coding: utf-8 -*-
-
-import os
-import sys
-
-sd = os.path.abspath(os.path.dirname(__file__))
-sys.path.append(sd)
diff --git a/core/__init__.py b/core/__init__.py
index 0a4027a..e69de29 100644
--- a/core/__init__.py
+++ b/core/__init__.py
@@ -1,8 +0,0 @@
-#!/usr/bin/python
-# -*- coding: utf-8 -*-
-
-import os
-import sys
-
-sd = os.path.abspath(os.path.dirname(__file__))
-sys.path.append(sd)
diff --git a/sample.py b/sample.py
index 4b65cc9..bbdd488 100644
--- a/sample.py
+++ b/sample.py
@@ -1,8 +1,14 @@
 #!/usr/bin/python
 # -*- coding: utf-8 -*-
 
+import sys
 import os
-os.chdir(os.path.dirname(os.path.abspath(__file__)))
+import pathlib
+
+
+root_path = pathlib.Path(os.path.abspath(__file__)).parent
+sys.path.append(str(root_path))
+
 
 from core.drucker_worker_client import DruckerWorkerClient