9 This software may be used and distributed according to the terms

     9 This software may be used and distributed according to the terms

    10 of the GNU General Public License, incorporated herein by reference.

    10 of the GNU General Public License, incorporated herein by reference.

    11 """

    11 """

    12 

    12 

    13 from node import *

    13 from node import *

    14 from demandload import demandload

    15 from demandload import demandload

    15 demandload(globals(), "binascii errno heapq mdiff sha struct zlib")

    16 demandload(globals(), "binascii errno heapq mdiff sha struct zlib")

    16 

    17 

    17 def hash(text, p1, p2):

    18 def hash(text, p1, p2):

    18     """generate a hash from the given text and its parent hashes

    19     """generate a hash from the given text and its parent hashes