"(Remark, you have to [download the example data](https://github.com/kjordahl/SciPy-Tutorial-2015/blob/master/download_data.py) first and put it in the scratch folder ...

Again I bring a discussion from LeafMap (opengeos/leafmap#1011) over here. I have a Shiny for Python app using LeafMap in which I cannot get rasters to show up. The app shows six maps side-by-side, ...