testcredentials.py
def tearDown(self):
        ''' 
        to undo the tests before this
        '''
        users.list_user=[]
 
        to undo the tests before this
        
to undo the tests before this
to undo the tests before this
def tearDown(self):
        users.list_user=[]
def tearDown ( self ) : users . list_user = [ ]
to undo the tests before this
to undo the tests before this
''' 
        to undo the tests before this
        '''
self