Convert script from Python 2.x to 3.x

[JulianMatthes]

The script was modified to be used within a Python 3.x environment.

[PMehrfeld]

If someone is interested, there exist an python 2 to 3 conversion script. (Maybe you used this already.)

Convert Python v 2.X into 3.X:
In Windows-Dos:
python D:\Programs\Anaconda3_python35_Win64\Tools\scripts\2to3.py -w D:\path\myPythonFile.py
or:
(anacondaEnvName) D:\Programs\Anaconda3_python35_Win64\envs\anacondaEnvName\Scripts
2to3.exe -w D:\path\myPythonFile.py