Fixed CQ checks for flake8

Author: navjotcis

src/class_sqlThread.py

@@ -23,6 +23,7 @@
 def db_upgrade(func):
     """upgrade the migration"""
     def inner(*args, **kwargs):
+        """this is inner method"""
         reference = args[0]
         item = '''SELECT value FROM settings WHERE key='version';'''
         parameters = ''
@@ -54,9 +55,12 @@ def update_sent(self):
 
     @db_upgrade
     def upgrade_migrations(self, currentVersion):
-        versionList = ['versionThree', 'versionTwo', 'versionThree',
-        'versionFour', 'versionFive', 'versionSix', 'versionSeven',
-        'versionEight', 'versionNine', 'versionTen']
+        """This method is for upgrading migrations"""
+        versionList = [
+            'versionThree', 'versionTwo', 'versionThree',
+            'versionFour', 'versionFive', 'versionSix', 'versionSeven',
+            'versionEight', 'versionNine', 'versionTen'
+        ]
         if currentVersion < 11:
             getattr(self, versionList[currentVersion - 1])()