fix LookupError exception and DeprecationWarning

.gitignore

@@ -5,3 +5,4 @@ pp
 dist
 build
 connectrum.egg-info
+.idea

connectrum/client.py

@@ -59,7 +59,7 @@ def _connection_lost(self, protocol):
             return
 
         self.protocol = None
-        logger.warn("Electrum server connection lost")
+        logger.warning("Electrum server connection lost")
 
         for (_, fut) in self.inflight.values():
             fut.set_exception(ElectrumErrorResponse("Electrum server connection lost"))

connectrum/findall.py

@@ -109,7 +109,7 @@ async def reconnect(self, **kwargs):
         # Trigger an event that may cascade to a client_connect.
         # Don't continue until a client_connect occurs, which may be never.
 
-        logger.warn("Disconnected (will reconnect)")
+        logger.warning("Disconnected (will reconnect)")
 
         # Note that we're not in a coroutine, so we don't have access
         # to await and asyncio.sleep

connectrum/protocol.py

@@ -33,7 +33,7 @@ def data_received(self, data):
             if not line: continue
 
             try:
-                msg = line.decode('utf-8', "error").strip()
+                msg = line.decode('utf-8', "strict").strip()
             except UnicodeError as exc:
                 logger.exception("Encoding issue on %r" % line)
                 self.connection_lost(exc)