cannot import name 'Final' from 'typing'

[lijiabad]

when I run demo.py it showed "ImportError: cannot import name 'Final' from 'typing' (/home/jsj616/miniconda3/envs/vilt/lib/python3.7/typing.py)" my environment is ipython 7.34.0 pypi_0 pypi
python 3.7.16 h7a1cb2a_0 defaults other configuration is same as the document.I cant figure it out

[2223xia]

you can find the 'beit.py' and 'eva.py', using:'from typing_extensions import Final
from typing import Callable, Optional, Tuple, Union' instead of 'from typing import Callable, Final, Optional, Tuple, Union'.
But it still showed "WARNING - ViLT - No observers have been added to this run
INFO - ViLT - Running command 'main'
INFO - ViLT - Started
ERROR - ViLT - Failed after 0:00:10!
Traceback (most recent calls WITHOUT Sacred internals):
File "demo.py", line 36, in main
tokenizer = get_pretrained_tokenizer(_config["tokenizer"])
File "E:\ViLT-master\ViLT-master\vilt\datamodules\datamodule_base.py", line 20, in get_pretrained_tokenizer
from_pretrained, do_lower_case="uncased" in from_pretrained
File "E:\Anaconda\envs\my_vilt\lib\site-packages\transformers\tokenization_utils_base.py", line 1745, in from_pretrained
use_auth_token=use_auth_token,
File "E:\Anaconda\envs\my_vilt\lib\site-packages\transformers\file_utils.py", line 1056, in cached_path
local_files_only=local_files_only,
File "E:\Anaconda\envs\my_vilt\lib\site-packages\transformers\file_utils.py", line 1235, in get_from_cache
"Connection error, and we cannot find the requested files in the cached path."
ValueError: Connection error, and we cannot find the requested files in the cached path. Please try again or make sure your Internet connection is on."

[JackieQiang]

you can find the 'beit.py' and 'eva.py', using:'from typing_extensions import Final from typing import Callable, Optional, Tuple, Union' instead of 'from typing import Callable, Final, Optional, Tuple, Union'. But it still showed "WARNING - ViLT - No observers have been added to this run INFO - ViLT - Running command 'main' INFO - ViLT - Started ERROR - ViLT - Failed after 0:00:10! Traceback (most recent calls WITHOUT Sacred internals): File "demo.py", line 36, in main tokenizer = get_pretrained_tokenizer(_config["tokenizer"]) File "E:\ViLT-master\ViLT-master\vilt\datamodules\datamodule_base.py", line 20, in get_pretrained_tokenizer from_pretrained, do_lower_case="uncased" in from_pretrained File "E:\Anaconda\envs\my_vilt\lib\site-packages\transformers\tokenization_utils_base.py", line 1745, in from_pretrained use_auth_token=use_auth_token, File "E:\Anaconda\envs\my_vilt\lib\site-packages\transformers\file_utils.py", line 1056, in cached_path local_files_only=local_files_only, File "E:\Anaconda\envs\my_vilt\lib\site-packages\transformers\file_utils.py", line 1235, in get_from_cache "Connection error, and we cannot find the requested files in the cached path." ValueError: Connection error, and we cannot find the requested files in the cached path. Please try again or make sure your Internet connection is on."

same problem