def separated(items, sep=',', last=None):
    items = iter(items)
    next = items.next()
    for i in items:
        yield next, sep
        next = i
    yield next, last
The client makes a request to the token endpoint by adding the
dataset/ETHPy150Open edgewall/trac/trac/util/presentation.py/separated--crossover with--dataset/ETHPy150Open idan/oauthlib/oauthlib/oauth2/rfc6749/grant_types/resource_owner_password_credentials.py/ResourceOwnerPasswordCredentialsGrant.validate_token_request