storage.py 文件源码

def _read_hdf_from_buffer(self, buffer):
        with pandas.HDFStore(
                "data.h5",
                mode="r",
                driver="H5FD_CORE",
                driver_core_backing_store=0,
                driver_core_image=buffer.read()) as store:

            if len(store.keys()) > 1:
                raise Exception('Ambiguous matrix store. More than one dataframe in the hdf file.')

            try:
                return store["matrix"]

            except KeyError:
                print("The hdf file should contain one and only key, matrix.")
                return store[store.keys()[0]]