# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,

# MA  02110-1301, USA.

def str2bool(v):

    if isinstance(v, (str, unicode)):

        obj = v.strip().lower()

        if obj in ['true', 'yes', 'on', 'y', 't', '1']:

            return True

        elif obj in ['false', 'no', 'off', 'n', 'f', '0']:

            return False

        else:

            raise ValueError("String is not true/false: %r" % obj)

def generate_api_key(username, salt=None):

    from tempfile import _RandomNameSequence

    import hashlib

    if salt is None:

        salt = _RandomNameSequence().next()

    return hashlib.sha1(username + salt).hexdigest()