electrum

commit dff1822c370f0ee19dc3945ba741a30939e123d6
parent d477e3489f88c26ea633187647aea0606c01fdf0
Author: ThomasV <thomasv@electrum.org>
Date:   Sat,  8 Jun 2019 18:37:15 +0200

fix watchtower: sweep_tx must not be None

Diffstat:
M
electrum/lnsweep.py
 | 
3
++-

1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/electrum/lnsweep.py b/electrum/lnsweep.py
@@ -55,7 +55,8 @@ def create_sweeptxs_for_their_revoked_ctx(chan: 'Channel', ctx: Transaction, per
             witness_script=witness_script,
             privkey=other_revocation_privkey,
             is_revocation=True)
-        txs.append(sweep_tx)
+        if sweep_tx:
+            txs.append(sweep_tx)
     # HTLCs
     def create_sweeptx_for_htlc(htlc: 'UpdateAddHtlc', is_received_htlc: bool) -> Tuple[Optional[Transaction],
                                                                                       Optional[Transaction],