#NEWLINE# def __getitem__( self , key ) : #NEWLINE# #INDENT# for mapping in self . maps : #NEWLINE# #INDENT# try : #NEWLINE# #INDENT# return mapping [ key ] #NEWLINE# #UNINDENT# except KeyError : #NEWLINE# #INDENT# pass #NEWLINE# #UNINDENT# #UNINDENT# return self . __missing__ ( key )