Fix problem introduced in 9c5f835b031e : Exception in LDPowerRailDialog.py because of change in OnPaint/RefreshView/DrawPreview.
from __future__ import absolute_import
from etherlab.etherlab import *
from util.BitmapLibrary import AddBitmapFolder
import util.paths as paths
AddBitmapFolder(os.path.join(paths.AbsDir(__file__), "images"))