def column(self, col):
        try:
            return [row[col] for row in self.children]
        except:
            return []
Ensure file is cached to correct location when an alternate cachedir is
dataset/ETHPy150Open bokeh/bokeh/bokeh/models/plots.py/GridPlot.column--crossover with--dataset/ETHPy150Open saltstack/salt/tests/integration/fileclient_test.py/FileclientTest.test_cache_file_with_alternate_cachedir_and_absolute_path