#NEWLINE# def __init__( self , * keys , **mapping ) : #NEWLINE# #INDENT# super ( Env , self ) . __init__ ( ) #NEWLINE# self . keys = [ format_key ( k ) for k in keys ] #NEWLINE# self . mapping = dict ( ( ( format_key ( v ) , format_key ( v ) ) for ( k , v ) in mapping . items ( ) ) )