I'm using ArcGIS for Desktop 10.2.1 and I'm trying to use arcpy.Describe to get a connection string from an ArcSDE connection. My ArcSDE database is 10.2. However, the connectionString parameter from the arcpy.Describe method returns an empty string as if the workspace was not SDE. Is this a bug or intentional?
This appears to be a bug. I would recommend logging an incident with Tech Support to have this bug logged, and to see if there is a possible workaround.