I'm keen to create some contours (isochrones for a pedestrian 'ped-shed' catchment) from a point dataset in QGIS, using the contour plugin from the Plugins repository.
I installed the plugin, but restarting QGIS generated a popup saying that the plugin had been disabled because one or more of
numpy were not installed.
Since other plugins already depend on numpy and matplotlib, it was clear that only
shapely could be the problem.
pip install shapely finished without a hitch, but re-opening QGIS again spat out the popup.
When I open the Python console in QGIS and type
import shapely, it's found - as the screenshot below shows.
A trawl of the internet and of this SX yield mostly questions like this - i.e., people who missed the dependencies (as I did, but have remedied).
Has anybody seen this behaviour before? If so, how was it resolved?
Both Python (2.7) and QGIS (2.8.2 Wien) are 32-bit; running on Windows 7 ultimate.