def _get_func_dir(self, mkdir=True):
        func_dir = _cache_key_to_dir(self.cachedir, self.func, None)
        if mkdir:
            mkdirp(func_dir)
        return func_dir
run the special 'clean' target
dataset/ETHPy150Open scikit-learn/scikit-learn/sklearn/externals/joblib/memory.py/MemorizedFunc._get_func_dir--crossover with--dataset/ETHPy150Open floooh/fips/mod/tools/xcodebuild.py/run_clean