After mass loading a bunch of feature classes into a enterprise geodatabases (10.3.1, MSSQL), I need to add privileges for a role to many of them. I tested ChangePrivileges with a single feature class, it worked, so now I thought I would extend this by getting a list of feature classes, then using a For loop on the list to grant the privileges. But it didn't wok to set up the correct database connection as a env.workspace. What's the correct way to loop through a enterprise geodatabase to add permissions? Or do I want to do this in a totally different way? The following script gives a TypeError: 'NoneType' object is not iterable on debugging line 17, indicating I didn't get anything into the list.
# Testing how to modify enterprise geodatabase privileges with python
# Paul Huffman, 2017-12-14
from arcpy import env
env.workspace = "Database Connections/Streams as GisOwner.sde"
#get list of feature classes in geodatabase.
fclist = 
fclist = arcpy.ListFeatureClasses ("Database Connections/Streams as GisOwner.sde")
#datasetName = "Database Connections/Streams as GisOwner.sde/Streams.GISOWNER.str37_route_rivers"
#datasetName = "Streams.GISOWNER.str37_route_rivers"
#arcpy.ChangePrivileges_management(datasetName, "GISUsers", "GRANT", "AS_IS")
for fc in fclist:
#arcpy.ChangePrivileges_management(fc, "GISUsers", "GRANT", "AS_IS")