Fix python3.x scoping issues with removed 'uee' variable
Fix python3.x scoping issues with removed 'uee' variable

In python3.x the 'uee' variable will be removed from the
scope after the except block exits (if it ever is entered)
so we need to use a different variable name to ensure that
it will not be deleted so we can use it later.

Change-Id: Ia86a2bd1a46e57eaf47704eadc991fd0c9b08661

JioCloud/oslo.db,magic0704/oslo.db,varunarya10/oslo.db,openstack/oslo.db,akash1808/oslo.db,openstack/oslo.db