table = Crud(user='******', password='******', host='127.0.0.1', port='5432', dbname='postgres', table='cities', primarykey='city') table.connect() table.insert(city='fayoum', address='south of cairo') table.insert_many(columns=('city', 'address'), rows=[['matrooh', 'north'], ['luxor', 'south']]) table.commit() table.select_all() table.select_all(primaryKey_value='luxor') table.select(columns=['address'], primaryKey_value='luxor') table.select(columns=['address']) table.update(column='address', column_value='50 KM south of cairo', primaryKey_value='fayoum') table.update_multiple_columns(columns=['city', 'address'], columns_value=['qena', 'upperEgypt'],