C:\Users\29140>pip install --upgrade --force-reinstall traitlets notebook jupyter-core
Collecting traitlets
Using cached traitlets-5.14.3-py3-none-any.whl (85 kB)
Collecting notebook
Using cached notebook-7.4.7-py3-none-any.whl (14.3 MB)
Collecting jupyter-core
Using cached jupyter_core-5.8.1-py3-none-any.whl (28 kB)
Collecting jupyter-server<3,>=2.4.0
Using cached jupyter_server-2.17.0-py3-none-any.whl (388 kB)
Collecting notebook-shim<0.3,>=0.2
Using cached notebook_shim-0.2.4-py3-none-any.whl (13 kB)
Collecting jupyterlab-server<3,>=2.27.1
Using cached jupyterlab_server-2.28.0-py3-none-any.whl (59 kB)
Collecting tornado>=6.2.0
Using cached tornado-6.5.2-cp39-abi3-win_amd64.whl (445 kB)
Collecting jupyterlab<4.5,>=4.4.9
Using cached jupyterlab-4.4.10-py3-none-any.whl (12.3 MB)
Collecting platformdirs>=2.5
Using cached platformdirs-4.4.0-py3-none-any.whl (18 kB)
Collecting pywin32>=300
Downloading pywin32-311-cp39-cp39-win_amd64.whl (9.6 MB)
| | 10 kB 5.9 kB/s eta 0:27:18ERROR: Exception:
Traceback (most recent call last):
File "D:\Python_evn\python2020.1\anaconda3\lib\site-packages\pip\_vendor\urllib3\response.py", line 438, in _error_catcher
yield
File "D:\Python_evn\python2020.1\anaconda3\lib\site-packages\pip\_vendor\urllib3\response.py", line 519, in read
data = self._fp.read(amt) if not fp_closed else b""
File "D:\Python_evn\python2020.1\anaconda3\lib\site-packages\pip\_vendor\cachecontrol\filewrapper.py", line 62, in read
data = self.__fp.read(amt)
File "D:\Python_evn\python2020.1\anaconda3\lib\http\client.py", line 462, in read
n = self.readinto(b)
File "D:\Python_evn\python2020.1\anaconda3\lib\http\client.py", line 506, in readinto
n = self.fp.readinto(b)
File "D:\Python_evn\python2020.1\anaconda3\lib\socket.py", line 704, in readinto
return self._sock.recv_into(b)
File "D:\Python_evn\python2020.1\anaconda3\lib\ssl.py", line 1241, in recv_into
return self.read(nbytes, buffer)
File "D:\Python_evn\python2020.1\anaconda3\lib\ssl.py", line 1099, in read
return self._sslobj.read(len, buffer)
socket.timeout: The read operation timed out
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "D:\Python_evn\python2020.1\anaconda3\lib\site-packages\pip\_internal\cli\base_command.py", line 173, in _main
status = self.run(options, args)
File "D:\Python_evn\python2020.1\anaconda3\lib\site-packages\pip\_internal\cli\req_command.py", line 203, in wrapper
return func(self, options, args)
File "D:\Python_evn\python2020.1\anaconda3\lib\site-packages\pip\_internal\commands\install.py", line 315, in run
requirement_set = resolver.resolve(
File "D:\Python_evn\python2020.1\anaconda3\lib\site-packages\pip\_internal\resolution\resolvelib\resolver.py", line 94, in resolve
result = self._result = resolver.resolve(
File "D:\Python_evn\python2020.1\anaconda3\lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 472, in resolve
state = resolution.resolve(requirements, max_rounds=max_rounds)
File "D:\Python_evn\python2020.1\anaconda3\lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 366, in resolve
failure_causes = self._attempt_to_pin_criterion(name)
File "D:\Python_evn\python2020.1\anaconda3\lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 212, in _attempt_to_pin_criterion
criteria = self._get_updated_criteria(candidate)
File "D:\Python_evn\python2020.1\anaconda3\lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 203, in _get_updated_criteria
self._add_to_criteria(criteria, requirement, parent=candidate)
File "D:\Python_evn\python2020.1\anaconda3\lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 172, in _add_to_criteria
if not criterion.candidates:
File "D:\Python_evn\python2020.1\anaconda3\lib\site-packages\pip\_vendor\resolvelib\structs.py", line 151, in __bool__
return bool(self._sequence)
File "D:\Python_evn\python2020.1\anaconda3\lib\site-packages\pip\_internal\resolution\resolvelib\found_candidates.py", line 140, in __bool__
return any(self)
File "D:\Python_evn\python2020.1\anaconda3\lib\site-packages\pip\_internal\resolution\resolvelib\found_candidates.py", line 128, in <genexpr>
return (c for c in iterator if id(c) not in self._incompatible_ids)
File "D:\Python_evn\python2020.1\anaconda3\lib\site-packages\pip\_internal\resolution\resolvelib\found_candidates.py", line 32, in _iter_built
candidate = func()
File "D:\Python_evn\python2020.1\anaconda3\lib\site-packages\pip\_internal\resolution\resolvelib\factory.py", line 204, in _make_candidate_from_link
self._link_candidate_cache[link] = LinkCandidate(
File "D:\Python_evn\python2020.1\anaconda3\lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 295, in __init__
super().__init__(
File "D:\Python_evn\python2020.1\anaconda3\lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 156, in __init__
self.dist = self._prepare()
File "D:\Python_evn\python2020.1\anaconda3\lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 227, in _prepare
dist = self._prepare_distribution()
File "D:\Python_evn\python2020.1\anaconda3\lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 305, in _prepare_distribution
return self._factory.preparer.prepare_linked_requirement(
File "D:\Python_evn\python2020.1\anaconda3\lib\site-packages\pip\_internal\operations\prepare.py", line 508, in prepare_linked_requirement
return self._prepare_linked_requirement(req, parallel_builds)
File "D:\Python_evn\python2020.1\anaconda3\lib\site-packages\pip\_internal\operations\prepare.py", line 550, in _prepare_linked_requirement
local_file = unpack_url(
File "D:\Python_evn\python2020.1\anaconda3\lib\site-packages\pip\_internal\operations\prepare.py", line 239, in unpack_url
file = get_http_url(
File "D:\Python_evn\python2020.1\anaconda3\lib\site-packages\pip\_internal\operations\prepare.py", line 102, in get_http_url
from_path, content_type = download(link, temp_dir.path)
File "D:\Python_evn\python2020.1\anaconda3\lib\site-packages\pip\_internal\network\download.py", line 145, in __call__
for chunk in chunks:
File "D:\Python_evn\python2020.1\anaconda3\lib\site-packages\pip\_internal\cli\progress_bars.py", line 144, in iter
for x in it:
File "D:\Python_evn\python2020.1\anaconda3\lib\site-packages\pip\_internal\network\utils.py", line 63, in response_chunks
for chunk in response.raw.stream(
File "D:\Python_evn\python2020.1\anaconda3\lib\site-packages\pip\_vendor\urllib3\response.py", line 576, in stream
data = self.read(amt=amt, decode_content=decode_content)
File "D:\Python_evn\python2020.1\anaconda3\lib\site-packages\pip\_vendor\urllib3\response.py", line 541, in read
raise IncompleteRead(self._fp_bytes_read, self.length_remaining)
File "D:\Python_evn\python2020.1\anaconda3\lib\contextlib.py", line 137, in __exit__
self.gen.throw(typ, value, traceback)
File "D:\Python_evn\python2020.1\anaconda3\lib\site-packages\pip\_vendor\urllib3\response.py", line 443, in _error_catcher
raise ReadTimeoutError(self._pool, None, "Read timed out.")
pip._vendor.urllib3.exceptions.ReadTimeoutError: HTTPSConnectionPool(host='files.pythonhosted.org', port=443): Read timed out.这是什么情况
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