Please describe your issue here.
Operating system: e.g. Windows, Linux or Mac?
Python version: e.g. 2.7,3.5,3.6?
pyGIMLi version: Output of print(pg.__version__)
Way of installation: e.g. Conda package, Win binary, curl script, manual compilation from source
Tell us how to reproduce this issue. Ideally, you could paste the code that produces the error:
import pygimli as pg
...
Tell us what should happen or what you want to achieve.
Tell us what happens instead and/or provide the output of your script.
Paste output here.
If possible, please add one or more labels to your issue, e.g. if you expect that your issue is rather a question than a problem with the code, please add the label "question".