import seaborn as sns

planets = sns.load_dataset('planets')

Traceback (most recent call last):
  File "C:\Users\liujieru\AppData\Local\Programs\Python\Python38\lib\urllib\request.py", line 1317, in do_open
    h.request(req.get_method(), req.selector, req.data, headers,
  File "C:\Users\liujieru\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 1230, in request
    self._send_request(method, url, body, headers, encode_chunked)
  File "C:\Users\liujieru\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 1276, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
  File "C:\Users\liujieru\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 1225, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
  File "C:\Users\liujieru\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 1004, in _send_output
    self.send(msg)
  File "C:\Users\liujieru\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 944, in send
    self.connect()
  File "C:\Users\liujieru\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 1399, in connect
    self.sock = self._context.wrap_socket(self.sock,
  File "C:\Users\liujieru\AppData\Local\Programs\Python\Python38\lib\ssl.py", line 500, in wrap_socket
    return self.sslsocket_class._create(
  File "C:\Users\liujieru\AppData\Local\Programs\Python\Python38\lib\ssl.py", line 1040, in _create
    self.do_handshake()
  File "C:\Users\liujieru\AppData\Local\Programs\Python\Python38\lib\ssl.py", line 1309, in do_handshake
    self._sslobj.do_handshake()
ConnectionResetError: [WinError 10054] 远程主机强迫关闭了一个现有的连接。
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
  File "C:\Users\liujieru\AppData\Local\Programs\Python\Python38\lib\site-packages\IPython\core\interactiveshell.py", line 3319, in run_code
    exec(code_obj, self.user_global_ns, self.user_ns)
  File "<ipython-input-95-52222a5349dc>", line 1, in <module>
    planets = sns.load_dataset('planets')
  File "C:\Users\liujieru\AppData\Local\Programs\Python\Python38\lib\site-packages\seaborn\utils.py", line 436, in load_dataset
    urlretrieve(full_path, cache_path)
  File "C:\Users\liujieru\AppData\Local\Programs\Python\Python38\lib\urllib\request.py", line 247, in urlretrieve
    with contextlib.closing(urlopen(url, data)) as fp:
  File "C:\Users\liujieru\AppData\Local\Programs\Python\Python38\lib\urllib\request.py", line 222, in urlopen
    return opener.open(url, data, timeout)
  File "C:\Users\liujieru\AppData\Local\Programs\Python\Python38\lib\urllib\request.py", line 525, in open
    response = self._open(req, data)
  File "C:\Users\liujieru\AppData\Local\Programs\Python\Python38\lib\urllib\request.py", line 542, in _open
    result = self._call_chain(self.handle_open, protocol, protocol +
  File "C:\Users\liujieru\AppData\Local\Programs\Python\Python38\lib\urllib\request.py", line 502, in _call_chain
    result = func(*args)
  File "C:\Users\liujieru\AppData\Local\Programs\Python\Python38\lib\urllib\request.py", line 1360, in https_open
    return self.do_open(http.client.HTTPSConnection, req,
  File "C:\Users\liujieru\AppData\Local\Programs\Python\Python38\lib\urllib\request.py", line 1320, in do_open
    raise URLError(err)
urllib.error.URLError: <urlopen error [WinError 10054] 远程主机强迫关闭了一个现有的连接。