#NEWLINE# def __init__( self , alias , target , output_field = None ) : #NEWLINE# #INDENT# if ( output_field is None ) : #NEWLINE# #INDENT# output_field = target #NEWLINE# #UNINDENT# super ( Col , self ) . __init__ ( output_field = output_field ) #NEWLINE# ( self . alias , self . target ) = ( alias , target )