您好！又打扰了！win10安装之后，运行手写数字识别的模型，无法联网下载数据文件该如何解决？

Cache file /root/.cache/paddle/dataset/mnist/train-labels-idx1-ubyte.gz not found, downloading http://yann.lecun.com/exdb/mnist/train-labels-idx1-ubyte.gz
Traceback (most recent call last):
File "train_with_paddle.py", line 117, in
main()
File "train_with_paddle.py", line 87, in main
paddle.reader.shuffle(paddle.dataset.mnist.train(), buf_size=8192),
File "/usr/lib64/python2.7/site-packages/paddle/v2/dataset/mnist.py", line 91, in train
TRAIN_LABEL_MD5), 100)
File "/usr/lib64/python2.7/site-packages/paddle/v2/dataset/common.py", line 85, in download
r = requests.get(url, stream=True)
File "/usr/lib/python2.7/site-packages/requests/api.py", line 71, in get
return request('get', url, params=params, **kwargs)
File "/usr/lib/python2.7/site-packages/requests/api.py", line 57, in request
return session.request(method=method, url=url, **kwargs)
File "/usr/lib/python2.7/site-packages/requests/sessions.py", line 475, in request
resp = self.send(prep, **send_kwargs)
File "/usr/lib/python2.7/site-packages/requests/sessions.py", line 585, in send
r = adapter.send(request, **kwargs)
File "/usr/lib/python2.7/site-packages/requests/adapters.py", line 442, in send
raise ConnectionError(e, request=request)
requests.exceptions.ConnectionError: HTTPConnectionPool(host='yann.lecun.com', port=80): Max retries exceeded with url: /exdb/mnist/train-labels-idx1-ubyte.gz (Caused by NewConnectionError(': Failed to establish a new connection: [Errno -2] Name or service not known',))