#NEWLINE# def __init__( self , sources ) : #NEWLINE# #INDENT# 'Create a configuration hierarchy for a list of sources. At\n        least one source must be provided. The first source in the list\n        has the highest priority.\n        ' #NEWLINE# self . sources = list ( self ) #NEWLINE# self . name = ROOT_NAME #NEWLINE# self . redactions = set ( )