box-server-token.py

from boxsdk import JWTAuth
from boxsdk import Client

# automation id => 32828.... What to do with this?
auth = JWTAuth(
    client_id='8grfp2...',
    client_secret='1FwTmL...',
    enterprise_id='322105',
    jwt_key_id='qasd...',
    rsa_private_key_file_sys_path='c:\\temp\\private_key_nopass.pem'
)

# create user representing me and fetch an access token for it
client = Client(auth)
me = client.user(user_id='238631333') # jhoerr@umail-test.iu.edu, in the 'iudev' instance
token = auth.authenticate_app_user(me)

# ^^^ at this point the script throws an HTTP 400 with the message, 
# “Cannot obtain user token based on the enterprise configuration of your app.”