#NEWLINE# def __init__( self , expression , hash_len = 512 ) : #NEWLINE# #INDENT# if ( hash_len not in self . hash_lens ) : #NEWLINE# #INDENT# raise ValueError ( 'hash_len must be one of {}' . format ( ',' . join ( ( str ( x ) for x in x . hash_lens ) ) ) ) #NEWLINE# #UNINDENT# super ( SHA2 , self ) . __init__ ( expression , Value ( hash_len ) )