Cleanup a few unused variables.

neo/client/app.py

@@ -676,7 +676,6 @@ class Application(object):
         append = result.append
         resolved_oid_set = set()
         update = resolved_oid_set.update
-        ttid = txn_context['ttid']
         _handleConflicts = self._handleConflicts
         queue = txn_context['queue']
         conflict_serial_dict = txn_context['conflict_serial_dict']

neo/client/pool.py

@@ -78,7 +78,7 @@ class ConnectionPool(object):
     @profiler_decorator
     def _dropConnections(self):
         """Drop connections."""
-        for node_uuid, conn in self.connection_dict.items():
+        for conn in self.connection_dict.values():
             # Drop first connection which looks not used
             conn.lock()
             try:

neo/lib/logger.py

@@ -236,7 +236,6 @@ class NEOLogger(Logger):
 
     def packet(self, connection, packet, outgoing):
         if self._db is not None:
-            ip, port = connection.getAddress()
             self._queue(PacketRecord(
                 created=time(),
                 msg_id=packet._id,

neo/lib/util.py

@@ -144,7 +144,6 @@ class ReadBuffer(object):
         pop_chunk = self.content.popleft
         append_data = chunk_list.append
         to_read = size
-        chunk_len = 0
         # select required chunks
         while to_read > 0:
             chunk_size, chunk_data = pop_chunk()

neo/master/backup_app.py

@@ -193,7 +193,6 @@ class BackupApplication(object):
         prev_tid = app.getLastTransaction()
         app.setLastTransaction(tid)
         pt = app.pt
-        getByUUID = app.nm.getByUUID
         trigger_set = set()
         untouched_dict = defaultdict(dict)
         for offset in xrange(pt.getPartitions()):
@@ -252,7 +251,6 @@ class BackupApplication(object):
                 replicate_list.append(offset)
         if not replicate_list:
             return
-        getByUUID = self.nm.getByUUID
         getCellList = self.pt.getCellList
         source_dict = {}
         address_set = set()

neo/master/verification.py

@@ -142,7 +142,6 @@ class VerificationManager(BaseServiceHandler):
             app.em.poll(0)
 
     def verifyTransaction(self, tid):
-        em = self.app.em
         nm = self.app.nm
         uuid_set = set()
 
@@ -193,7 +192,6 @@ class VerificationManager(BaseServiceHandler):
     def answerTransactionInformation(self, conn, tid,
                                            user, desc, ext, packed, oid_list):
         uuid = conn.getUUID()
-        app = self.app
         if not self._gotAnswerFrom(uuid):
             return
         oid_set = set(oid_list)