From b3c379b93952159ba8402930d55236427908f92e Mon Sep 17 00:00:00 2001
From: ThomasV <thomasv@electrum.org>
Date: Sun, 29 Jan 2017 10:37:11 +0100
Subject: [PATCH] fix serialize bug for p2pk

---
 lib/transaction.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/transaction.py b/lib/transaction.py
index 1fd2452c..1e159ba9 100644
--- a/lib/transaction.py
+++ b/lib/transaction.py
@@ -625,6 +625,9 @@ class Transaction:
         redeem_script = txin.get('redeemScript')
         if self.is_segwit_input(txin):
             return push_script(redeem_script)
+        if txin['type'] == 'p2pk':
+            sig = txin['signatures'][0]
+            return push_script(sig)
         pubkeys, sig_list = self.get_siglist(txin, estimate_size)
         script = ''.join(push_script(x) for x in sig_list)
         if not pubkeys: