sqlite flake8 fixes

src/storage/sqlite.py

@@ -1,12 +1,11 @@
-import collections
-from threading import current_thread, enumerate as threadingEnumerate, RLock
-import Queue
+from threading import RLock
 import sqlite3
 import time
 
-from helper_sql import *
+from helper_sql import sqlQuery, SqlBulkExecute, sqlExecute
 from storage import InventoryStorage, InventoryItem
 
+
 class SqliteInventory(InventoryStorage):
     def __init__(self):
         super(self.__class__, self).__init__()
@@ -36,7 +35,9 @@ class SqliteInventory(InventoryStorage):
         with self.lock:
             if hash in self._inventory:
                 return self._inventory[hash]
-            rows = sqlQuery('SELECT objecttype, streamnumber, payload, expirestime, tag FROM inventory WHERE hash=?', sqlite3.Binary(hash))
+            rows = sqlQuery(
+                'SELECT objecttype, streamnumber, payload, expirestime, tag FROM inventory WHERE hash=?',
+                sqlite3.Binary(hash))
             if not rows:
                 raise KeyError(hash)
             return InventoryItem(*rows[0])
@@ -63,18 +64,22 @@ class SqliteInventory(InventoryStorage):
     def by_type_and_tag(self, objectType, tag):
         with self.lock:
             values = [value for value in self._inventory.values() if value.type == objectType and value.tag == tag]
-            values += (InventoryItem(*value) for value in sqlQuery('SELECT objecttype, streamnumber, payload, expirestime, tag FROM inventory WHERE objecttype=? AND tag=?', objectType, sqlite3.Binary(tag)))
+            values += (InventoryItem(*value) for value in sqlQuery(
+                'SELECT objecttype, streamnumber, payload, expirestime, tag \
+                FROM inventory WHERE objecttype=? AND tag=?', objectType, sqlite3.Binary(tag)))
             return values
 
     def unexpired_hashes_by_stream(self, stream):
         with self.lock:
             t = int(time.time())
             hashes = [x for x, value in self._inventory.items() if value.stream == stream and value.expires > t]
-            hashes += (str(payload) for payload, in sqlQuery('SELECT hash FROM inventory WHERE streamnumber=? AND expirestime>?', stream, t))
+            hashes += (str(payload) for payload, in sqlQuery(
+                'SELECT hash FROM inventory WHERE streamnumber=? AND expirestime>?', stream, t))
             return hashes
 
     def flush(self):
-        with self.lock: # If you use both the inventoryLock and the sqlLock, always use the inventoryLock OUTSIDE of the sqlLock.
+        with self.lock:
+            # If you use both the inventoryLock and the sqlLock, always use the inventoryLock OUTSIDE of the sqlLock.
             with SqlBulkExecute() as sql:
                 for objectHash, value in self._inventory.items():
                     sql.execute('INSERT INTO inventory VALUES (?, ?, ?, ?, ?, ?)', sqlite3.Binary(objectHash), *value)
@@ -82,8 +87,7 @@ class SqliteInventory(InventoryStorage):
 
     def clean(self):
         with self.lock:
-            sqlExecute('DELETE FROM inventory WHERE expirestime<?',int(time.time()) - (60 * 60 * 3))
+            sqlExecute('DELETE FROM inventory WHERE expirestime<?', int(time.time()) - (60 * 60 * 3))
             self._objects.clear()
             for objectHash, value in self._inventory.items():
                 self._objects[objectHash] = value.stream
-