AttributeError: 'str' object has no attribute 'exists'

[zyxcambridge]

023-10-19 06:32:41,967 INFO Total samples for Waymo dataset: 0
---------------The waymo sample interval is 1, total sequecnes is 1-----------------
0%| | 0/1 [00:00<?, ?it/s]
Traceback (most recent call last):
File "/opt/conda/envs/detzero/lib/python3.8/runpy.py", line 194, in _run_module_as_main
return _run_code(code, main_globals, None,
File "/opt/conda/envs/detzero/lib/python3.8/runpy.py", line 87, in _run_code
exec(code, run_globals)
File "/mnt/update/DetZero/detection/detzero_det/datasets/waymo/waymo_preprocess.py", line 241, in
create_waymo_infos(
File "/mnt/update/DetZero/detection/detzero_det/datasets/waymo/waymo_preprocess.py", line 90, in create_waymo_infos
waymo_infos_val = get_infos_worker(
File "/mnt/update/DetZero/detection/detzero_det/datasets/waymo/waymo_preprocess.py", line 36, in get_infos_worker
sequence_infos = list(tqdm(executor.map(process_single_sequence, sample_sequence_file_list),
File "/opt/conda/envs/detzero/lib/python3.8/site-packages/tqdm/std.py", line 1182, in iter
for obj in iterable:
File "/opt/conda/envs/detzero/lib/python3.8/concurrent/futures/_base.py", line 619, in result_iterator
yield fs.pop().result()
File "/opt/conda/envs/detzero/lib/python3.8/concurrent/futures/_base.py", line 444, in result
return self.__get_result()
File "/opt/conda/envs/detzero/lib/python3.8/concurrent/futures/_base.py", line 389, in __get_result
raise self._exception
File "/opt/conda/envs/detzero/lib/python3.8/concurrent/futures/thread.py", line 57, in run
result = self.fn(*self.args, **self.kwargs)
File "/mnt/update/DetZero/detection/detzero_det/datasets/waymo/waymo_utils.py", line 200, in process_single_sequence_and_save
if pkl_file.exists():
AttributeError: 'str' object has no attribute 'exists'

[Winston-Lii]

use os.path.exist() replace exist()