Correction for the fix for Bug 3508 - Persistent storage support breaks Linux compatibility.
A 2nd `make install' will fail attempting to create symlink libnvmemmory.so already created by 1st install.
Install should pre-emptively delete it.
# $Id: sha.py 58064 2007-09-09 20:25:00Z gregory.p.smith $
#
# Copyright (C) 2005 Gregory P. Smith (greg@krypto.org)
# Licensed to PSF under a Contributor Agreement.
import warnings
warnings.warn("the sha module is deprecated; use the hashlib module instead",
DeprecationWarning, 2)
from hashlib import sha1 as sha
new = sha
blocksize = 1 # legacy value (wrong in any useful sense)
digest_size = 20
digestsize = 20