[py2py3] WMQuality.TestInit - Remove dependency on MySQL-python

This is related to dmwm#9805

We want not to depend anymore on MySQL-python, since it does
not support python3.

This is the only occurrence of this package left in dmwm/WMCore

src/python/WMQuality/TestInit.py

@@ -20,8 +20,6 @@
 import threading
 import traceback
 
-from _mysql_exceptions import OperationalError
-
 from WMCore.Agent.Configuration import Configuration
 from WMCore.Agent.Configuration import loadConfigurationFile
 from WMCore.WMException import WMException
@@ -157,8 +155,9 @@ def setDatabaseConnection(self, connectUrl=None, socket=None, destroyAllDatabase
         # If the database is not empty when we go to set the schema, abort!
         try:
             result = self.init.checkDatabaseContents()
-        except OperationalError:
+        except Exception as e:
             logging.debug("Error checking DB contents, assume DB does not exist")
+            logging.debug(str(e))
             return
         if len(result) > 0:
             msg = "Database not empty, cannot set schema !\n"