username_to_moodleid_1.py

#!/usr/bin/env python

import sys
import moodle.ws

if __name__ == "__main__":

    if len(sys.argv) != 2:
        print("Missing usernmae argument")
        sys.exit(1)
    username = sys.argv[1]

    host = "https://moodle-test.cs.colorado.edu"
    ws = moodle.ws.WS(host)
    # Must authenticate as Moodle admin in order to access full user list
    # Note: you can work around this restriction by adding the
    # "moodle/user:viewalldetails" permission to whichever role you
    # want to use this function, e.g. 'teacher'.
    ws.authenticate("admin",
                    "FAKEPASSWORD",
                    "Grading_Serv",
                    error=True)

    print("Looking up ID for '{}'".format(username))
    res = ws.core_user_get_users([('username', username)])

    user_list = res['users']
    if len(user_list) < 1:
        print("Username not found")
        sys.exit(1)
    elif len(user_list) > 1:
        print("Multiple users found")
        sys.exit(1)

    user = user_list[0]
    user_id = user['id']
    print("ID = '{}'".format(user_id))
    sys.exit(0)