python使用pip更新模块报错问题 Read timed out
今天下载matplotlib的时候一直报错：
ERROR: Exception:
Traceback (most recent call last):
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python39\lib\site-packages\pip\_vendor\urllib3\response.py", line 438, in _error_catcher
yield
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python39\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\Administrator\AppData\Local\Programs\Python\Python39\lib\site-packages\pip\_vendor\cachecontrol\filewrapper.py", line 62, in read
data = self.__fp.read(amt)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python39\lib\http\client.py", line 458, in read
n = self.readinto(b)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python39\lib\http\client.py", line 502, in readinto
n = self.fp.readinto(b)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python39\lib\socket.py", line 704, in readinto
return self._sock.recv_into(b)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python39\lib\ssl.py", line 1241, in recv_into
return self.read(nbytes, buffer)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python39\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\Administrator\AppData\Local\Programs\Python\Python39\lib\site-packages\pip\_internal\cli\base_command.py", line 224, in _main
status = self.run(options, args)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python39\lib\site-packages\pip\_internal\cli\req_command.py", line 180, in wrapper
return func(self, options, args)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python39\lib\site-packages\pip\_internal\commands\install.py", line 320, in run
requirement_set = resolver.resolve(
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python39\lib\site-packages\pip\_internal\resolution\resolvelib\resolver.py", line 121, in resolve
self._result = resolver.resolve(
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python39\lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 445, in resolve
state = resolution.resolve(requirements, max_rounds=max_rounds)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python39\lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 339, in resolve
failure_causes = self._attempt_to_pin_criterion(name, criterion)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python39\lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 207, in _attempt_to_pin_criterion
criteria = self._get_criteria_to_update(candidate)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python39\lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 198, in _get_criteria_to_update
for r in self._p.get_dependencies(candidate):
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python39\lib\site-packages\pip\_internal\resolution\resolvelib\provider.py", line 170, in get_dependencies
return [
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python39\lib\site-packages\pip\_internal\resolution\resolvelib\provider.py", line 170, in <listcomp>
return [
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python39\lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 257, in iter_dependencies
requires = self.dist.requires() if with_requires else ()
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python39\lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 239, in dist
self._prepare()
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python39\lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 226, in _prepare
dist = self._prepare_distribution()
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python39\lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 318, in _prepare_distribution
return self._factory.preparer.prepare_linked_requirement(
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python39\lib\site-packages\pip\_internal\operations\prepare.py", line 480, in prepare_linked_requirement
return self._prepare_linked_requirement(req, parallel_builds)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python39\lib\site-packages\pip\_internal\operations\prepare.py", line 503, in _prepare_linked_requirement
local_file = unpack_url(
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python39\lib\site-packages\pip\_internal\operations\prepare.py", line 253, in unpack_url
file = get_http_url(
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python39\lib\site-packages\pip\_internal\operations\prepare.py", line 130, in get_http_url
from_path, content_type = download(link, temp_dir.path)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python39\lib\site-packages\pip\_internal\network\download.py", line 163, in __call__
for chunk in chunks:
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python39\lib\site-packages\pip\_internal\cli\progress_bars.py", line 168, in iter
for x in it:
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python39\lib\site-packages\pip\_internal\network\utils.py", line 64, in response_chunks
for chunk in response.raw.stream(
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python39\lib\site-packages\pip\_vendor\urllib3\response.py", line 576, in stream
data = self.read(amt=amt, decode_content=decode_content)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python39\lib\site-packages\pip\_vendor\urllib3\response.py", line 541, in read
raise IncompleteRead(self._fp_bytes_read, self.length_remaining)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python39\lib\contextlib.py", line 135, in __exit__
self.gen.throw(type, value, traceback)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python39\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.
解决方法如下：
-
在运行cmd时要使用管理员身份运行
-
在path中添加python的安装路径：
在系统中找到python的安装路径并复制：
打开电脑的高级系统设置，找到环境变量：
（1）双击我的电脑/此电脑——>属性——>高级系统设置——>环境变量
找到path：
双击path进入新建：
将python路径添加进去即可 -
更新pip：python -m pip install -U pip
-
（这一步会报错，以下有解决方法）
下载matplotlib：pip install matplotlib
但是，又报错了：
ERROR: Command errored out with exit status 1:
command: 'c:\users\administrator\appdata\local\programs\python\python39\python.exe' -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\Administrator\\AppData\\Local\\Temp\\pip-install-r76auhx3\\matplotlib_0ce6f58a6e1343619d1e948d8442371c\\setup.py'"'"'; __file__='"'"'C:\\Users\\Administrator\\AppData\\Local\\Temp\\pip-install-r76auhx3\\matplotlib_0ce6f58a6e1343619d1e948d8442371c\\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base 'C:\Users\Administrator\AppData\Local\Temp\pip-pip-egg-info-cy91alz5'
cwd: C:\Users\Administrator\AppData\Local\Temp\pip-install-r76auhx3\matplotlib_0ce6f58a6e1343619d1e948d8442371c\
Complete output (117 lines):
WARNING: The wheel package is not available.
ERROR: Exception:
Traceback (most recent call last):
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\urllib3\response.py", line 438, in _error_catcher
yield
File "c:\users\administrator\appdata\local\programs\python\python39\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\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\cachecontrol\filewrapper.py", line 62, in read
data = self.__fp.read(amt)
File "c:\users\administrator\appdata\local\programs\python\python39\lib\http\client.py", line 458, in read
n = self.readinto(b)
File "c:\users\administrator\appdata\local\programs\python\python39\lib\http\client.py", line 502, in readinto
n = self.fp.readinto(b)
File "c:\users\administrator\appdata\local\programs\python\python39\lib\socket.py", line 704, in readinto
return self._sock.recv_into(b)
File "c:\users\administrator\appdata\local\programs\python\python39\lib\ssl.py", line 1241, in recv_into
return self.read(nbytes, buffer)
File "c:\users\administrator\appdata\local\programs\python\python39\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\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\cli\base_command.py", line 224, in _main
status = self.run(options, args)
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\cli\req_command.py", line 180, in wrapper
return func(self, options, args)
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\commands\wheel.py", line 154, in run
requirement_set = resolver.resolve(
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\resolution\resolvelib\resolver.py", line 121, in resolve
self._result = resolver.resolve(
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 445, in resolve
state = resolution.resolve(requirements, max_rounds=max_rounds)
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 339, in resolve
failure_causes = self._attempt_to_pin_criterion(name, criterion)
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 207, in _attempt_to_pin_criterion
criteria = self._get_criteria_to_update(candidate)
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 198, in _get_criteria_to_update
for r in self._p.get_dependencies(candidate):
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\resolution\resolvelib\provider.py", line 170, in get_dependencies
return [
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\resolution\resolvelib\provider.py", line 170, in <listcomp>
return [
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 260, in iter_dependencies
yield self._get_requires_python_dependency()
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 244, in _get_requires_python_dependency
requires_python = get_requires_python(self.dist)
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 239, in dist
self._prepare()
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 226, in _prepare
dist = self._prepare_distribution()
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 318, in _prepare_distribution
return self._factory.preparer.prepare_linked_requirement(
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\operations\prepare.py", line 480, in prepare_linked_requirement
return self._prepare_linked_requirement(req, parallel_builds)
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\operations\prepare.py", line 503, in _prepare_linked_requirement
local_file = unpack_url(
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\operations\prepare.py", line 253, in unpack_url
file = get_http_url(
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\operations\prepare.py", line 130, in get_http_url
from_path, content_type = download(link, temp_dir.path)
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\network\download.py", line 163, in __call__
for chunk in chunks:
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\network\utils.py", line 64, in response_chunks
for chunk in response.raw.stream(
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\urllib3\response.py", line 576, in stream
data = self.read(amt=amt, decode_content=decode_content)
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\urllib3\response.py", line 541, in read
raise IncompleteRead(self._fp_bytes_read, self.length_remaining)
File "c:\users\administrator\appdata\local\programs\python\python39\lib\contextlib.py", line 135, in __exit__
self.gen.throw(type, value, traceback)
File "c:\users\administrator\appdata\local\programs\python\python39\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.
Traceback (most recent call last):
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\setuptools\installer.py", line 128, in fetch_build_egg
subprocess.check_call(cmd)
File "c:\users\administrator\appdata\local\programs\python\python39\lib\subprocess.py", line 373, in check_call
raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['c:\\users\\administrator\\appdata\\local\\programs\\python\\python39\\python.exe', '-m', 'pip', '--disable-pip-version-check', 'wheel', '--no-deps', '-w', 'C:\\Users\\ADMINI~1\\AppData\\Local\\Temp\\tmpc163m4uo', '--quiet', 'numpy>=1.15']' returned non-zero exit status 2.
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "" , line 1, in <module>
File "C:\Users\Administrator\AppData\Local\Temp\pip-install-r76auhx3\matplotlib_0ce6f58a6e1343619d1e948d8442371c\setup.py", line 242, in <module>
setup( # Finally, pass this all along to distutils to do the heavy lifting.
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\setuptools\__init__.py", line 164, in setup
_install_setup_requires(attrs)
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\setuptools\__init__.py", line 159, in _install_setup_requires
dist.fetch_build_eggs(dist.setup_requires)
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\setuptools\dist.py", line 699, in fetch_build_eggs
resolved_dists = pkg_resources.working_set.resolve(
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pkg_resources\__init__.py", line 779, in resolve
dist = best[req.key] = env.best_match(
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pkg_resources\__init__.py", line 1064, in best_match
return self.obtain(req, installer)
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pkg_resources\__init__.py", line 1076, in obtain
return installer(requirement)
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\setuptools\dist.py", line 758, in fetch_build_egg
return fetch_build_egg(self, req)
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\setuptools\installer.py", line 130, in fetch_build_egg
raise DistutilsError(str(e)) from e
distutils.errors.DistutilsError: Command '['c:\\users\\administrator\\appdata\\local\\programs\\python\\python39\\python.exe', '-m', 'pip', '--disable-pip-version-check', 'wheel', '--no-deps', '-w', 'C:\\Users\\ADMINI~1\\AppData\\Local\\Temp\\tmpc163m4uo', '--quiet', 'numpy>=1.15']' returned non-zero exit status 2.
Edit setup.cfg to change the build options; suppress output with --quiet.
BUILDING MATPLOTLIB
matplotlib: yes [3.3.2]
python: yes [3.9.0 (tags/v3.9.0:9cf6752, Oct 5 2020, 15:34:40) [MSC
v.1927 64 bit (AMD64)]]
platform: yes [win32]
sample_data: yes [installing]
tests: no [skipping due to configuration]
macosx: no [Mac OS-X only]
----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.
上网查据说是版本冲突的问题，需要到网站上自己下载：
原文链接https://blog.csdn.net/hhladminhhl/article/details/109071398
但是还是有报错：
重新用pip install matplotlib报错ReadTimeOut：
Traceback (most recent call last):
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\urllib3\response.py", line 438, in _error_catcher
yield
File "c:\users\administrator\appdata\local\programs\python\python39\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\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\cachecontrol\filewrapper.py", line 62, in read
data = self.__fp.read(amt)
File "c:\users\administrator\appdata\local\programs\python\python39\lib\http\client.py", line 458, in read
n = self.readinto(b)
File "c:\users\administrator\appdata\local\programs\python\python39\lib\http\client.py", line 502, in readinto
n = self.fp.readinto(b)
File "c:\users\administrator\appdata\local\programs\python\python39\lib\socket.py", line 704, in readinto
return self._sock.recv_into(b)
File "c:\users\administrator\appdata\local\programs\python\python39\lib\ssl.py", line 1241, in recv_into
return self.read(nbytes, buffer)
File "c:\users\administrator\appdata\local\programs\python\python39\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\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\cli\base_command.py", line 224, in _main
status = self.run(options, args)
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\cli\req_command.py", line 180, in wrapper
return func(self, options, args)
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\commands\install.py", line 320, in run
requirement_set = resolver.resolve(
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\resolution\resolvelib\resolver.py", line 121, in resolve
self._result = resolver.resolve(
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 445, in resolve
state = resolution.resolve(requirements, max_rounds=max_rounds)
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 339, in resolve
failure_causes = self._attempt_to_pin_criterion(name, criterion)
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 207, in _attempt_to_pin_criterion
criteria = self._get_criteria_to_update(candidate)
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 198, in _get_criteria_to_update
for r in self._p.get_dependencies(candidate):
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\resolution\resolvelib\provider.py", line 170, in get_dependencies
return [
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\resolution\resolvelib\provider.py", line 170, in <listcomp>
return [
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 257, in iter_dependencies
requires = self.dist.requires() if with_requires else ()
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 239, in dist
self._prepare()
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 226, in _prepare
dist = self._prepare_distribution()
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 318, in _prepare_distribution
return self._factory.preparer.prepare_linked_requirement(
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\operations\prepare.py", line 480, in prepare_linked_requirement
return self._prepare_linked_requirement(req, parallel_builds)
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\operations\prepare.py", line 503, in _prepare_linked_requirement
local_file = unpack_url(
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\operations\prepare.py", line 253, in unpack_url
file = get_http_url(
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\operations\prepare.py", line 130, in get_http_url
from_path, content_type = download(link, temp_dir.path)
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\network\download.py", line 163, in __call__
for chunk in chunks:
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\cli\progress_bars.py", line 168, in iter
for x in it:
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\network\utils.py", line 64, in response_chunks
for chunk in response.raw.stream(
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\urllib3\response.py", line 576, in stream
data = self.read(amt=amt, decode_content=decode_content)
File "c:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\urllib3\response.py", line 541, in read
raise IncompleteRead(self._fp_bytes_read, self.length_remaining)
File "c:\users\administrator\appdata\local\programs\python\python39\lib\contextlib.py", line 135, in __exit__
self.gen.throw(type, value, traceback)
File "c:\users\administrator\appdata\local\programs\python\python39\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.
据说这是网速问题，原文链接https://blog.csdn.net/hahaxq/article/details/104120025
然后使用命令pip --default-timeout=100 install matplotlib -i http://pypi.douban.com/simple/ --trusted-host pypi.douban.com即可安装：
问题到此已经解决了，matplotlib模块安装成功。
好了，我可以继续肝实验了。