fix sweeping

electrum/gui/qt/main_window.py

@@ -2583,7 +2583,7 @@ class ElectrumWindow(QMainWindow, MessageBoxMixin, PrintError):
             self.spend_max()
             self.payto_e.setFrozen(True)
             self.amount_e.setFrozen(True)
-        except BaseException as e:
+        except Exception as e:  # FIXME too broad...
             self.show_message(str(e))
             return
         self.warn_if_watching_only()

electrum/tests/test_wallet_vertical.py

@@ -2,6 +2,7 @@ from unittest import mock
 import shutil
 import tempfile
 from typing import Sequence
+import asyncio
 
 from electrum import storage, bitcoin, keystore
 from electrum import Transaction
@@ -997,7 +998,10 @@ class TestWalletSending(TestCaseForTestnet):
         class NetworkMock:
             relay_fee = 1000
             def get_local_height(self): return 1325785
-            def listunspent_for_scripthash(self, scripthash):
+            def run_from_another_thread(self, coro):
+                loop = asyncio.get_event_loop()
+                return loop.run_until_complete(coro)
+            async def listunspent_for_scripthash(self, scripthash):
                 if scripthash == '460e4fb540b657d775d84ff4955c9b13bd954c2adc26a6b998331343f85b6a45':
                     return [{'tx_hash': 'ac24de8b58e826f60bd7b9ba31670bdfc3e8aedb2f28d0e91599d741569e3429', 'tx_pos': 1, 'height': 1325785, 'value': 1000000}]
                 else:

electrum/wallet.py

@@ -87,7 +87,7 @@ def append_utxos_to_inputs(inputs, network, pubkey, txin_type, imax):
         scripthash = bitcoin.script_to_scripthash(script)
         address = '(pubkey)'
 
-    u = network.listunspent_for_scripthash(scripthash)
+    u = network.run_from_another_thread(network.listunspent_for_scripthash(scripthash))
     for item in u:
         if len(inputs) >= imax:
             break