pip安装matplotlib

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pip更新失败
ERROR: Could not install packages due to an EnvironmentError: [WinError 5] 拒绝访问。: 'C:\\Users\\zhangjing\\AppData\\Local\\Temp\\pip-uninstall-b9qq5krd\\pip.exe'
Consider using the `--user` option or check the permissions.

matplotlib更新失败
Downloading pip-21.0.1-py3-none-any.whl (1.5 MB)
     |█████                           | 245 kB 154 bytes/s eta 2:19:11ERROR: Exception:
Traceback (most recent call last):
  File "c:\users\zhangjing\appdata\local\programs\python\python38\lib\site-packages\pip\_vendor\urllib3\response.py", line 437, in _error_catcher
    yield
  File "c:\users\zhangjing\appdata\local\programs\python\python38\lib\site-packages\pip\_vendor\urllib3\response.py", line 519, in read
    data = self._fp.read(amt) if not fp_closed else b""
  File "c:\users\zhangjing\appdata\local\programs\python\python38\lib\site-packages\pip\_vendor\cachecontrol\filewrapper.py", line 62, in read
    data = self.__fp.read(amt)
  File "c:\users\zhangjing\appdata\local\programs\python\python38\lib\http\client.py", line 458, in read
    n = self.readinto(b)
  File "c:\users\zhangjing\appdata\local\programs\python\python38\lib\http\client.py", line 502, in readinto
    n = self.fp.readinto(b)
  File "c:\users\zhangjing\appdata\local\programs\python\python38\lib\socket.py", line 669, in readinto
    return self._sock.recv_into(b)
  File "c:\users\zhangjing\appdata\local\programs\python\python38\lib\ssl.py", line 1241, in recv_into
    return self.read(nbytes, buffer)
  File "c:\users\zhangjing\appdata\local\programs\python\python38\lib\ssl.py", line 1099, in read
    return self._sslobj.read(len, buffer)
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\zhangjing\appdata\local\programs\python\python38\lib\site-packages\pip\_internal\cli\base_command.py", line 228, in _main
    status = self.run(options, args)
  File "c:\users\zhangjing\appdata\local\programs\python\python38\lib\site-packages\pip\_internal\cli\req_command.py", line 182, in wrapper
    return func(self, options, args)
  File "c:\users\zhangjing\appdata\local\programs\python\python38\lib\site-packages\pip\_internal\commands\install.py", line 323, in run
    requirement_set = resolver.resolve(
  File "c:\users\zhangjing\appdata\local\programs\python\python38\lib\site-packages\pip\_internal\resolution\legacy\resolver.py", line 183, in resolve
    discovered_reqs.extend(self._resolve_one(requirement_set, req))
  File "c:\users\zhangjing\appdata\local\programs\python\python38\lib\site-packages\pip\_internal\resolution\legacy\resolver.py", line 388, in _resolve_one
    abstract_dist = self._get_abstract_dist_for(req_to_install)
  File "c:\users\zhangjing\appdata\local\programs\python\python38\lib\site-packages\pip\_internal\resolution\legacy\resolver.py", line 340, in _get_abstract_dist_for
    abstract_dist = self.preparer.prepare_linked_requirement(req)
  File "c:\users\zhangjing\appdata\local\programs\python\python38\lib\site-packages\pip\_internal\operations\prepare.py", line 467, in prepare_linked_requirement
    local_file = unpack_url(
  File "c:\users\zhangjing\appdata\local\programs\python\python38\lib\site-packages\pip\_internal\operations\prepare.py", line 255, in unpack_url
    file = get_http_url(
  File "c:\users\zhangjing\appdata\local\programs\python\python38\lib\site-packages\pip\_internal\operations\prepare.py", line 129, in get_http_url
    from_path, content_type = _download_http_url(
  File "c:\users\zhangjing\appdata\local\programs\python\python38\lib\site-packages\pip\_internal\operations\prepare.py", line 282, in _download_http_url
    for chunk in download.chunks:
  File "c:\users\zhangjing\appdata\local\programs\python\python38\lib\site-packages\pip\_internal\cli\progress_bars.py", line 168, in iter
    for x in it:
  File "c:\users\zhangjing\appdata\local\programs\python\python38\lib\site-packages\pip\_internal\network\utils.py", line 64, in response_chunks
    for chunk in response.raw.stream(
  File "c:\users\zhangjing\appdata\local\programs\python\python38\lib\site-packages\pip\_vendor\urllib3\response.py", line 576, in stream
    data = self.read(amt=amt, decode_content=decode_content)
  File "c:\users\zhangjing\appdata\local\programs\python\python38\lib\site-packages\pip\_vendor\urllib3\response.py", line 541, in read
    raise IncompleteRead(self._fp_bytes_read, self.length_remaining)
  File "c:\users\zhangjing\appdata\local\programs\python\python38\lib\contextlib.py", line 131, in __exit__
    self.gen.throw(type, value, traceback)
  File "c:\users\zhangjing\appdata\local\programs\python\python38\lib\site-packages\pip\_vendor\urllib3\response.py", line 455, in _error_catcher
    raise ProtocolError("Connection broken: %r" % e, e)
pip._vendor.urllib3.exceptions.ProtocolError: ("Connection broken: ConnectionResetError(10054, '远程主机强迫关闭了一个现有的连接。', None, 10054, None)", ConnectionResetError(10054, '远程主机强迫关闭了一个现有的连接。', None, 10054, None))
WARNING: You are using pip version 20.2.3; however, version 21.0.1 is available.
You should consider upgrading via the 'c:\users\zhangjing\appdata\local\programs\python\python38\python.exe -m pip install --upgrade pip' command.

情绪z

用国内的镜像试一下

pip install -i https://pypi.tuna.tsinghua.edu.cn/simple matplotlib

昨非

'c:\users\zhangjing\appdata\local\programs\python\python38\python.exe -m pip install --upgrade pip

更新下pip先