This script will generate an OAuth bearer token for use in curl or python scripts that use requests.

oauthtoken.py

#!/usr/bin/env python
"""
Get a bearer token for the requested user/pass.

Must have environment variable OAUTH_CLIENT_ID defined
"""

from __future__ import absolute_import, print_function, unicode_literals

import sys, os
import requests

HOST = os.environ.get('OAUTH_HOST', 'http://localhost:8000')

USAGE = '''
Usage: {} <username> <password>

Required environment variable:
    OAUTH_CLIENT_ID: Set to OAuth 2 client id (see: /admin/oauth2/client/)

Optional environment variable:
    OAUTH_HOST: Set to the host prefix of your edx app.  Defaults to
                http://localhost:8000
'''

def get_token(session, username, password):
    """
    Attach a bearer token to the requests session, and return its value
    """

    client_id = os.environ['OAUTH_CLIENT_ID']
    url = '{}/oauth2/access_token/'.format(HOST)
    params = {
        'client_id': client_id,
        'grant_type': 'password',
        'username': username,
        'password': password
    }
    response = session.post(url, data=params)
    if not response.ok:
        raise ValueError("An error occurred: {}".format(response.text))
    token = response.json()['access_token']
    token_type = response.json()['token_type']
    session.headers['Authorization'] = ' '.join([token_type, token])
    return token

def main():
    """Execute the script"""

    session = requests.Session()
    if len(sys.argv) != 3:
        print(USAGE)
        sys.exit(1)
    print(get_token(session, sys.argv[1], sys.argv[2]))

if __name__ == '__main__':
    main()

Usage.txt

COMMAND LINE:

$ export OAUTH_CLIENT_ID=ffffbbbb777733330000
$ oauthtoken.py staff edx
3bae7d8cf43a69e34a35188636c3553e8b52a89c
$ token=`oauthtoken.py staff edx`
$ curl -H "Authorization: Bearer $token" http://localhost:8000/api/user/v1/accounts/staff
{"username":"staff",...}

PYTHON

>>> import requests
>>> import oauthtoken
>>> s = requests.Session()
>>> oauthtoken.get_token(s, 'staff', 'edx')
>>> response = s.get('http://localhost:8000/api/user/v1/accounts/staff')
>>> print response.json()
{'username': 'staff', ...}