def signalUpdate(self):
        self.layoutChanged.emit()
Table constructor should call RequestConfig if a request is passed.
dataset/ETHPy150Open cmorgan/trading-with-python/lib/qtpandas.py/DataFrameModel.signalUpdate--crossover with--dataset/ETHPy150Open bradleyayers/django-tables2/tests/test_config.py/test_passing_request_to_constructor