def get_keys_dir():
    return os.environ.get('ATTIC_KEYS_DIR',
                          os.path.join(os.path.expanduser('~'), '.attic', 'keys'))
delete <key>
dataset/ETHPy150Open jborg/attic/attic/helpers.py/get_keys_dir--crossover with--dataset/ETHPy150Open kdart/pycopia/fepy/pycopia/fepy/CLI.py/DictCLI.delete