Update pytest from 3.6.0 to 3.6.2
Update pytest from 3.6.0 to 3.6.2
mrpau/kolibri,indirectlylit/kolibri,indirectlylit/kolibri,learningequality/kolibri,DXCanas/kolibri,learningequality/kolibri,mrpau/kolibri,DXCanas/kolibri,lyw07/kolibri,indirectlylit/kolibri,mrpau/kolibri,lyw07/kolibri,indirectlylit/kolibri,DXCanas/kolibri,mrpau/kolibri,learningequality/kolibri,lyw07/kolibri,learningequality/kolibri,DXCanas/kolibri,lyw07/kolibri