I am having trouble adding a thumbnail along with my addItem statement in the attached python script. A file is successfully added to ArcGIS online, but the thumbnail is nowhere to be found. I have searched for answers and followed the help as best I can but without success. Any help is much appreciated.
Apparently Python isnt very good at uploading files in a multi-part form. Took me 4 hours to figure this out but here is a working python script that will update a thumbnail.
Thumbnail images must be in the same directory as the script.
