Update TestOpenML.py

Author: carefree0910

_Dist/NeuralNetworks/_Tests/DistNN/TestOpenML.py

@@ -1,6 +1,6 @@
 import os
 import sys
-root_path = os.path.abspath("./")
+root_path = os.path.abspath("../../../../")
 if root_path not in sys.path:
     sys.path.append(root_path)