pynode patch for hashlib ripemd160

pynode-ripemd.patch

diff --git a/bitcoin/serialize.py b/bitcoin/serialize.py
index 6d7fc6d..13a3afd 100644
--- a/bitcoin/serialize.py
+++ b/bitcoin/serialize.py
@@ -7,6 +7,7 @@
 #
 
 import struct
+import hashlib
 from Crypto.Hash import SHA256, RIPEMD160
 
 def deser_string(f):
@@ -192,5 +193,7 @@ def Hash(s):
        return uint256_from_str(SHA256.new(SHA256.new(s).digest()).digest())
 
 def Hash160(s):
-       return uint160_from_str(RIPEMD160.new(SHA256.new(s).digest()).digest())
+       h = hashlib.new('ripemd160')
+       h.update(SHA256.new(s).digest())
+       return uint160_from_str(h.digest())