How to use the isodate.isostrf.DATE_EXT_COMPLETE function in isodate

def test_timezone_z(self):
        dt = "2008-12-01T18:02:00.522630Z"
        l = Literal(dt,
                    datatype=URIRef('http://www.w3.org/2001/XMLSchema#dateTime'))

        self.assertTrue(isinstance(l.toPython(), datetime))
        self.assertEqual(datetime_isoformat(l.toPython(),
                                            DATE_EXT_COMPLETE + 'T' + '%H:%M:%S.%f' + TZ_EXT),
                         dt)
        self.assertEqual(l.toPython().isoformat(),
                         "2008-12-01T18:02:00.522630+00:00")

def date_isoformat(tdate, format=DATE_EXT_COMPLETE, yeardigits=4):
    '''
    Format date strings.

    This method is just a wrapper around isodate.isostrf.strftime and uses
    Date-Extended-Complete as default format.
    '''
    return strftime(tdate, format, yeardigits)

def datetime_isoformat(tdt, format=DATE_EXT_COMPLETE + 'T' + 
                                   TIME_EXT_COMPLETE + TZ_EXT):
    '''
    Format datetime strings. 
    
    This method is just a wrapper around isodate.isostrf.strftime and uses
    Extended-Complete as default format.
    '''
    return strftime(tdt, format)

def date_isoformat(tdate, format=DATE_EXT_COMPLETE, yeardigits=4):
    '''
    Format date strings. 
    
    This method is just a wrapper around isodate.isostrf.strftime and uses
    Date-Extended-Complete as default format.
    '''
    return strftime(tdate, format, yeardigits)

def date_isoformat(tdate, format=DATE_EXT_COMPLETE, yeardigits=4):
    '''
    Format date strings. 
    
    This method is just a wrapper around isodate.isostrf.strftime and uses
    Date-Extended-Complete as default format.
    '''
    return strftime(tdate, format, yeardigits)

def datetime_isoformat(tdt, format=DATE_EXT_COMPLETE + 'T' +
                       TIME_EXT_COMPLETE + TZ_EXT):
    '''
    Format datetime strings.

    This method is just a wrapper around isodate.isostrf.strftime and uses
    Extended-Complete as default format.
    '''
    return strftime(tdt, format)

def datetime_isoformat(tdt, format=DATE_EXT_COMPLETE + 'T' + 
                                   TIME_EXT_COMPLETE + TZ_EXT):
    '''
    Format datetime strings. 
    
    This method is just a wrapper around isodate.isostrf.strftime and uses
    Extended-Complete as default format.
    '''
    return strftime(tdt, format)

from isodate.isostrf import TIME_EXT_COMPLETE, TIME_EXT_MINUTE
from isodate.isostrf import TIME_HOUR
from isodate.isostrf import TZ_BAS, TZ_EXT, TZ_HOUR
from isodate.isostrf import DT_BAS_COMPLETE, DT_EXT_COMPLETE
from isodate.isostrf import DT_BAS_ORD_COMPLETE, DT_EXT_ORD_COMPLETE
from isodate.isostrf import DT_BAS_WEEK_COMPLETE, DT_EXT_WEEK_COMPLETE
from isodate.isostrf import D_DEFAULT, D_WEEK, D_ALT_EXT, D_ALT_BAS
from isodate.isostrf import D_ALT_BAS_ORD, D_ALT_EXT_ORD

__all__ = (parse_date, date_isoformat, parse_time, time_isoformat,
           parse_datetime, datetime_isoformat, parse_duration,
           duration_isoformat, ISO8601Error, parse_tzinfo,
           tz_isoformat, UTC, FixedOffset, LOCAL, Duration,
           strftime, DATE_BAS_COMPLETE, DATE_BAS_ORD_COMPLETE,
           DATE_BAS_WEEK, DATE_BAS_WEEK_COMPLETE, DATE_CENTURY,
           DATE_EXT_COMPLETE, DATE_EXT_ORD_COMPLETE, DATE_EXT_WEEK,
           DATE_EXT_WEEK_COMPLETE, DATE_MONTH, DATE_YEAR,
           TIME_BAS_COMPLETE, TIME_BAS_MINUTE, TIME_EXT_COMPLETE,
           TIME_EXT_MINUTE, TIME_HOUR, TZ_BAS, TZ_EXT, TZ_HOUR,
           DT_BAS_COMPLETE, DT_EXT_COMPLETE, DT_BAS_ORD_COMPLETE,
           DT_EXT_ORD_COMPLETE, DT_BAS_WEEK_COMPLETE,
           DT_EXT_WEEK_COMPLETE, D_DEFAULT, D_WEEK, D_ALT_EXT,
           D_ALT_BAS, D_ALT_BAS_ORD, D_ALT_EXT_ORD)

def date_isoformat(tdate, format=DATE_EXT_COMPLETE, yeardigits=4):
    '''
    Format date strings.

    This method is just a wrapper around isodate.isostrf.strftime and uses
    Date-Extended-Complete as default format.
    '''
    return strftime(tdate, format, yeardigits)

def datetime_isoformat(tdt, format=DATE_EXT_COMPLETE + 'T' +
                       TIME_EXT_COMPLETE + TZ_EXT):
    '''
    Format datetime strings.

    This method is just a wrapper around isodate.isostrf.strftime and uses
    Extended-Complete as default format.
    '''
    return strftime(tdt, format)