import splunklib.client as client

HOST = "localhost"
PORT = "8089"

'''
### BROKEN ###
service = client.connect(
        host=HOST,
        port=PORT,
        username='admin',
        password='changeme')

kv_client = service.kvstore
for kv in kv_client:
    print(kv)
# HTTPError: HTTP 400 Bad Request -- Must use user context of 'nobody' when interacting with collection configurations (used user='admin')

### Solution By Modifying Owner ###

service = client.connect(
        host=HOST,
        port=PORT,
        username='admin',
        password='changeme') 

print(service.namespace)
#{'owner': None, 'app': None, 'sharing': None}
service.namespace['owner'] = 'Nobody' #<- change namespace owner to Nobody

kv_client = service.kvstore
for kv in kv_client:
    print(kv)
# <splunklib.client.KVStoreCollection object at 0x...>
# <splunklib.client.KVStoreCollection object at 0x...>

class KVStoreCollectionData(object):
    """This class represents the data endpoint for a KVStoreCollection.

    Retrieve using :meth:`KVStoreCollection.data`
    """
    JSON_HEADER = [('Content-Type', 'application/json')]

    def __init__(self, collection):
        self.service = collection.service
        self.collection = collection
      #self.owner, self.app, self.sharing = collection._proper_namespace() # replace this line
        self.owner = 'Nobody' # <- add default
        self.app, self.sharing = collection._proper_namespace()