pyrlp update

Author: jnnk

ethereum/blocks.py

@@ -426,7 +426,11 @@ def __init__(self, header, transaction_list=[], uncles=[], env=None,
             'difficulty': header.difficulty,
             'uncles_hash': header.uncles_hash,
             'bloom': header.bloom,
+            'header_mutable': self.header.mutable_,
         }
+        assert self.mutable_
+        self.rlp_ = None
+        self.header.mutable_ = True
 
         self.transactions = Trie(self.db, trie.BLANK_ROOT)
         self.receipts = Trie(self.db, trie.BLANK_ROOT)
@@ -492,6 +496,7 @@ def must_le(what, a, b):
 
         # from now on, trie roots refer to block instead of header
         header.block = self
+        self.header.mutable_ = original_values['header_mutable']
 
         # Basic consistency verifications
         if not self.check_fields():
@@ -687,6 +692,8 @@ def _get_acct(self, address):
         rlpdata = self.state.get(address)
         if rlpdata != trie.BLANK_NODE:
             acct = rlp.decode(rlpdata, Account, db=self.db)
+            acct.mutable_ = True
+            acct.rlp_ = None
         else:
             acct = Account.blank_account(self.db)
         return acct

ethereum/tester.py

@@ -270,6 +270,10 @@ def snapshot(self):
 
     def revert(self, data):
         self.block = rlp.decode(data, b.Block, env=self.env)
+        self.block.mutable_ = True
+        self.block.header.mutable_ = True
+        self.block.rlp_ = None
+        self.block.header.rlp_ = None
 
 # logging