From c6fce4b7ccb6bcd697889aed4ef90157b9f46a2a Mon Sep 17 00:00:00 2001 From: Dev Random Date: Thu, 7 Jun 2018 08:44:48 -0700 Subject: [PATCH] do not actually compute the nested p2wsh-p2sh script if just estimating size (#4412) --- lib/transaction.py | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/lib/transaction.py b/lib/transaction.py index 652eceef4..f9ce6f5be 100644 --- a/lib/transaction.py +++ b/lib/transaction.py @@ -825,7 +825,10 @@ class Transaction: scriptSig = bitcoin.p2wpkh_nested_script(pubkey) return push_script(scriptSig) elif _type == 'p2wsh-p2sh': - witness_script = self.get_preimage_script(txin) + if estimate_size: + witness_script = '' + else: + witness_script = self.get_preimage_script(txin) scriptSig = bitcoin.p2wsh_nested_script(witness_script) return push_script(scriptSig) elif _type == 'address':