From 2a23aab24bbdb8f857366c42349b9bf7e7db839c Mon Sep 17 00:00:00 2001
From: ThomasV <thomasv@electrum.org>
Date: Wed, 28 Oct 2015 07:32:29 +0100
Subject: [PATCH] workaround #1513

---
 lib/wallet.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/wallet.py b/lib/wallet.py
index 82d1079c2..7f86c7af8 100644
--- a/lib/wallet.py
+++ b/lib/wallet.py
@@ -1047,6 +1047,8 @@ class Abstract_Wallet(PrintError):
     def send_tx(self, tx):
         # asynchronous
         self.tx_event.clear()
+        # fixme: this does not handle the case where server does not answer
+        assert self.network.interface, "Not connected."
         self.network.send([('blockchain.transaction.broadcast', [str(tx)])], self.on_broadcast)
         return tx.hash()