-slightly improved error message on import error
-slightly improved error message on import error

tectronics/imos-toolbox,ggalibert/imos-toolbox,tectronics/imos-toolbox,tectronics/imos-toolbox,ggalibert/imos-toolbox,ggalibert/imos-toolbox,tectronics/imos-toolbox,ggalibert/imos-toolbox,ggalibert/imos-toolbox