def get_config_files():
    dataduct_config_path = join('/etc', CFG_FILE)
    dataduct_user_config_path = join(expanduser('~'), CONFIG_DIR,
                                     CFG_FILE)
    config_files = [dataduct_config_path, dataduct_user_config_path]

    # Check DATADUCT_CONFIG_PATH env variable for other configuration locations
    if 'DATADUCT_CONFIG_PATH' in environ:
        for path in environ['DATADUCT_CONFIG_PATH'].split(":"):
            config_files.append(expanduser(path))

    return config_files
.. todo::
dataset/ETHPy150Open coursera/dataduct/dataduct/config/config.py/get_config_files--crossover with--dataset/ETHPy150Open lisa-lab/pylearn2/pylearn2/datasets/vector_spaces_dataset.py/VectorSpacesDataset.get_data