离线方式执行分词异常

[bluenessdragon]

Describe the bug/ 问题描述 (Mandatory / 必填)
T5Tokenizer.from_pretrained(strTokenizer,cache_dir=cache_dir,local_files_only=True )
在from_pretrained方法中，设置local_files_only为True，在断网的情况下，依然访问外网请求文件；

• Hardware Environment(Ascend/GPU/CPU) / 硬件环境:
  windows的CPU环境

• Software Environment / 软件环境 (Mandatory / 必填):
  -- MindSpore version (e.g., 1.7.0.Bxxx) :2.4.0
  -- Python version (e.g., Python 3.7.5) :3.10

• Excute Mode / 执行模式 (Mandatory / 必填)(PyNative/Graph):

Please delete the mode not involved / 请删除不涉及的模式:

To Reproduce / 重现步骤 (Mandatory / 必填)
Steps to reproduce the behavior:

1. 使用python执行语句：T5Tokenizer.from_pretrained('google-t5/t5-small',cache_dir=cache_dir,local_files_only=True )
2. 已经执行过一次；
3. 将本地网络关闭；
4. 再次执行报连接外网外网异常

Expected behavior / 预期结果 (Mandatory / 必填)
A clear and concise description of what you expected to happen.
已经下载好的分词器文件，在离线情况下不用再下载；
Screenshots/ 日志 / 截图 (Mandatory / 必填)
If applicable, add screenshots to help explain your problem.

Traceback (most recent call last):
File "C:\Users\bluen\AppData\Local\Programs\Python\Python310\lib\site-packages\requests\adapters.py", line 667, in send
resp = conn.urlopen(
File "C:\Users\bluen\AppData\Local\Programs\Python\Python310\lib\site-packages\urllib3\connectionpool.py", line 841, in urlopen
retries = retries.increment(
File "C:\Users\bluen\AppData\Local\Programs\Python\Python310\lib\site-packages\urllib3\util\retry.py", line 519, in increment
raise MaxRetryError(_pool, url, reason) from reason # type: ignore[arg-type]
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='hf-mirror.com', port=443): Max retries exceeded with url: /google-t5/t5-small/resolve/main/added_tokens.json?download=true (Caused by ProxyError('Unable to connect to proxy', FileNotFoundError(2, 'No such file or directory')))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "C:\Users\bluen\AppData\Local\Programs\Python\Python310\lib\site-packages\mindnlp\utils\download.py", line 503, in cached_file
resolved_file = download(
File "C:\Users\bluen\AppData\Local\Programs\Python\Python310\lib\site-packages\mindnlp\utils\download.py", line 627, in download
pointer_path = http_get(url, storage_folder, download_file_name=relative_filename, proxies=proxies, headers=headers)
File "C:\Users\bluen\AppData\Local\Programs\Python\Python310\lib\site-packages\mindnlp\utils\download.py", line 198, in http_get
req = requests.get(url, stream=True, timeout=10, proxies=proxies, headers=headers)
File "C:\Users\bluen\AppData\Local\Programs\Python\Python310\lib\site-packages\requests\api.py", line 73, in get return request("get", url, params=params, **kwargs)
File "C:\Users\bluen\AppData\Local\Programs\Python\Python310\lib\site-packages\requests\api.py", line 59, in request
return session.request(method=method, url=url, **kwargs)
File "C:\Users\bluen\AppData\Local\Programs\Python\Python310\lib\site-packages\requests\sessions.py", line 589, in request
resp = self.send(prep, **send_kwargs)
File "C:\Users\bluen\AppData\Local\Programs\Python\Python310\lib\site-packages\requests\sessions.py", line 703, in send
r = adapter.send(request, **kwargs)
File "C:\Users\bluen\AppData\Local\Programs\Python\Python310\lib\site-packages\requests\adapters.py", line 694, in send
raise ProxyError(e, request=request)
requests.exceptions.ProxyError: HTTPSConnectionPool(host='hf-mirror.com', port=443): Max retries exceeded with url: /google-t5/t5-small/resolve/main/added_tokens.json?download=true (Caused by ProxyError('Unable to connect to proxy', FileNotFoundError(2, 'No such file or directory')))

Additional context / 备注 (Optional / 选填)
Add any other context about the problem here.