def dbStore(self, typ, py_value):
if isinstance(py_value, datetime.datetime):<EOL><INDENT>if py_value.tzinfo is None:<EOL><INDENT>tz = pytz.timezone(orb.system.settings().server_timezone)<EOL>py_value = tz.localize(py_value)<EOL><DEDENT>return py_value.astimezone(pytz.utc).replace(tzinfo=None)<EOL><DEDENT>else:<EOL><INDENT>return super(DatetimeWithTimezoneColumn, self).dbStore(typ, py_value)<EOL><DEDENT>
Prepares to store this column for the a particular backend database.

:param backend: <orb.Database>
:param py_value: <variant>

:return: <variant>