Update script.py

script.py

@@ -10,6 +10,7 @@ tables = ['Album', 'Artist', 'Track']
 db = SQLDatabase.from_uri("sqlite:///Chinook.db", include_tables=tables)
 
 con = sqlite3.connect("Chinook.db")
+cur = con.cursor()
 
 for table in tables:
     rows = cur.execute("select * from %s limit 5" % table).fetchall()