Set Hudson Build Description via Web API
Here is the curl command that worked fine from shell. Replace the text in between and including {}. 
curl -X POST -u {user:password} -H 'Content-Type: application/x-www-form-urlencoded' --data-urlencode description={descriptionstring} {hudsonurl}/job/{jobname}/{buildnumber}/submitDescription
I have a Python script that operates on Hudson builds and would love to be able to set the description of a build programmatically.
I can click "Add Description" on a build's page and fill in the form, how can I POST some data to the same URL that form does?