pip install matplotlib报错
错误如下：pip install matplotlib
Collecting matplotlib
Downloading matplotlib-3.3.0-cp38-cp38-win_amd64.whl (8.8 MB)
|█▌ | 378 kB 3.2 kB/s eta 0:44:03ERROR: Exception:
Traceback (most recent call last):
File "C:\Users\Charlie\AppData\Roaming\Python\Python38\site-packages\pip\_vendor\urllib3\response.py", line 437, in _error_catcher
yield
File "C:\Users\Charlie\AppData\Roaming\Python\Python38\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\Charlie\AppData\Roaming\Python\Python38\site-packages\pip\_vendor\cachecontrol\filewrapper.py", line 62, in read
data = self.__fp.read(amt)
File "c:\users\charlie\appdata\local\programs\python\python38\lib\http\client.py", line 458, in read
n = self.readinto(b)
File "c:\users\charlie\appdata\local\programs\python\python38\lib\http\client.py", line 502, in readinto
n = self.fp.readinto(b)
File "c:\users\charlie\appdata\local\programs\python\python38\lib\socket.py", line 669, in readinto
return self._sock.recv_into(b)
File "c:\users\charlie\appdata\local\programs\python\python38\lib\ssl.py", line 1241, in recv_into
return self.read(nbytes, buffer)
File "c:\users\charlie\appdata\local\programs\python\python38\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 "C:\Users\Charlie\AppData\Roaming\Python\Python38\site-packages\pip\_internal\cli\base_command.py", line 216, in _main
status = self.run(options, args)
File "C:\Users\Charlie\AppData\Roaming\Python\Python38\site-packages\pip\_internal\cli\req_command.py", line 182, in wrapper
return func(self, options, args)
File "C:\Users\Charlie\AppData\Roaming\Python\Python38\site-packages\pip\_internal\commands\install.py", line 324, in run
requirement_set = resolver.resolve(
File "C:\Users\Charlie\AppData\Roaming\Python\Python38\site-packages\pip\_internal\resolution\legacy\resolver.py", line 183, in resolve
discovered_reqs.extend(self._resolve_one(requirement_set, req))
File "C:\Users\Charlie\AppData\Roaming\Python\Python38\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\Charlie\AppData\Roaming\Python\Python38\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\Charlie\AppData\Roaming\Python\Python38\site-packages\pip\_internal\operations\prepare.py", line 467, in prepare_linked_requirement
local_file = unpack_url(
File "C:\Users\Charlie\AppData\Roaming\Python\Python38\site-packages\pip\_internal\operations\prepare.py", line 255, in unpack_url
file = get_http_url(
File "C:\Users\Charlie\AppData\Roaming\Python\Python38\site-packages\pip\_internal\operations\prepare.py", line 129, in get_http_url
from_path, content_type = _download_http_url(
File "C:\Users\Charlie\AppData\Roaming\Python\Python38\site-packages\pip\_internal\operations\prepare.py", line 282, in _download_http_url
for chunk in download.chunks:
File "C:\Users\Charlie\AppData\Roaming\Python\Python38\site-packages\pip\_internal\cli\progress_bars.py", line 168, in iter
for x in it:
File "C:\Users\Charlie\AppData\Roaming\Python\Python38\site-packages\pip\_internal\network\utils.py", line 64, in response_chunks
for chunk in response.raw.stream(
File "C:\Users\Charlie\AppData\Roaming\Python\Python38\site-packages\pip\_vendor\urllib3\response.py", line 576, in stream
data = self.read(amt=amt, decode_content=decode_content)
File "C:\Users\Charlie\AppData\Roaming\Python\Python38\site-packages\pip\_vendor\urllib3\response.py", line 541, in read
raise IncompleteRead(self._fp_bytes_read, self.length_remaining)
File "c:\users\charlie\appdata\local\programs\python\python38\lib\contextlib.py", line 131, in __exit__
self.gen.throw(type, value, traceback)
File "C:\Users\Charlie\AppData\Roaming\Python\Python38\site-packages\pip\_vendor\urllib3\response.py", line 442, 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.
超时了，换国内镜像试试：
python -m pip install matplotlib -i https://pypi.tuna.tsinghua.edu.cn/simple
如果是 windows 可以设置下这个一劳永逸：
https://fishc.com.cn/thread-143635-1-1.html
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