def http_basic(r, username, password):
    """Attaches HTTP Basic Authentication to the given Request object.
    Arguments should be considered non-positional.

    """
    username = str(username)
    password = str(password)

    auth_s = b64encode('%s:%s' + (username, password))
    r.headers['Authorization'] = ('Basic %s' % auth_s)

    return r
dataset/ETHPy150Open bububa/pyTOP/pyTOP/packages/requests/auth.py/http_basic/operator `%` -> `+`