revert to daemon threads because some clients do not seem to close their sockets cleanly

electrum

@@ -17,7 +17,7 @@
 # along with this program. If not, see <http://www.gnu.org/licenses/>.
 
 import re
-import sys, os
+import sys, os, time
 import optparse
 
 try:
@@ -256,6 +256,9 @@ if __name__ == '__main__':
         synchronizer.stop()
         interface.stop()
 
+        # we use daemon threads, their termination is enforced.
+        # this sleep command gives them time to terminate cleanly. 
+        time.sleep(0.1)
         sys.exit(0)
 
     if cmd not in known_commands:

lib/verifier.py

@@ -29,7 +29,7 @@ class WalletVerifier(threading.Thread):
 
     def __init__(self, interface, config):
         threading.Thread.__init__(self)
-        #self.daemon = True
+        self.daemon = True
         self.config = config
         self.interface = interface
         self.transactions    = {}                                 # requested verifications (with height sent by the requestor)

lib/wallet.py

@@ -1156,7 +1156,7 @@ class WalletSynchronizer(threading.Thread):
 
     def __init__(self, wallet, config):
         threading.Thread.__init__(self)
-        # self.daemon = True
+        self.daemon = True
         self.wallet = wallet
         self.interface = self.wallet.interface
         self.interface.register_channel('synchronizer')