错误代码：
Exception:
Traceback (most recent call last):
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-packages\pip\_vendor\urllib
3\response.py", line 302, in _error_catcher
yield
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-packages\pip\_vendor\urllib
3\response.py", line 384, in read
data = self._fp.read(amt)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-packages\pip\_vendor\cachec
ontrol\filewrapper.py", line 60, in read
data = self.__fp.read(amt)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\http\client.py", line 447, in re
ad
n = self.readinto(b)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\http\client.py", line 491, in re
adinto
n = self.fp.readinto(b)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\socket.py", line 589, in readint
o
return self._sock.recv_into(b)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\ssl.py", line 1049, in recv_into
return self.read(nbytes, buffer)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\ssl.py", line 908, 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\Python37\lib\site-packages\pip\_internal\base
command.py", line 228, in main
status = self.run(options, args)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-packages\pip\_internal\comm
ands\install.py", line 291, in run
resolver.resolve(requirement_set)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-packages\pip\_internal\reso
lve.py", line 103, in resolve
self._resolve_one(requirement_set, req)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-packages\pip\_internal\reso
lve.py", line 257, in _resolve_one
abstract_dist = self._get_abstract_dist_for(req_to_install)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-packages\pip\_internal\reso
lve.py", line 210, in _get_abstract_dist_for
self.require_hashes
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-packages\pip\_internal\oper
ations\prepare.py", line 310, in prepare_linked_requirement
progress_bar=self.progress_bar
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-packages\pip\_internal\down
load.py", line 837, in unpack_url
progress_bar=progress_bar
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-packages\pip\_internal\down
load.py", line 674, in unpack_http_url
progress_bar)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-packages\pip\_internal\down
load.py", line 898, in _download_http_url
_download_url(resp, link, content_file, hashes, progress_bar)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-packages\pip\_internal\down
load.py", line 618, in _download_url
hashes.check_against_chunks(downloaded_chunks)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-packages\pip\_internal\util
s\hashes.py", line 48, in check_against_chunks
for chunk in chunks:
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-packages\pip\_internal\down
load.py", line 586, in written_chunks
for chunk in chunks:
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-packages\pip\_internal\util
s\ui.py", line 159, in iter
for x in it:
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-packages\pip\_internal\down
load.py", line 575, in resp_read
decode_content=False):
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-packages\pip\_vendor\urllib
3\response.py", line 436, in stream
data = self.read(amt=amt, decode_content=decode_content)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-packages\pip\_vendor\urllib
3\response.py", line 401, in read
raise IncompleteRead(self._fp_bytes_read, self.length_remaining)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\contextlib.py", line 130, in __e
xit__
self.gen.throw(type, value, traceback)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-packages\pip\_vendor\urllib
3\response.py", line 307, in _error_catcher
raise ReadTimeoutError(self._pool, None, 'Read timed out.')
pip._vendor.urllib3.exceptions.ReadTimeoutError: HTTPSConnectionPool(host='files.pythonhosted.org', port=4
43): Read timed out.
You are using pip version 10.0.1, however version 18.0 is available.
You should consider upgrading via the 'python -m pip install --upgrade pip' command.
系统和工具：
windows、pycharm。
解决方案：
本人试过了很多的方法去解决这个问题，
1--------当然大家首先肯定就是输入提示的这句“python -m pip install --upgrade pip'” 然后又发现装不上新版的pip。
2--------试过pip install requests -i http://pypi.douban.com/simple 也是没用
3--------试过加时间的方法pip –default-timeout=100 install -U requests也不行
4--------试过python -m pip install --user --upgrade pip这个是在install后加一个--user
5--------用管理员模式打开pycharm运行pip install requests（Linux中 sudo pip install requests）
以上这些都是我试过的方法结果都失败了。竟然会有这些方法，肯定有人成功过。所以罗列出来，希望可以帮到大家。
说来也奇怪我成功装上不是用命令行执行的。在你感觉没有办法的时候不妨换一种思路或者途径。
操作步骤如下；（前提我用的管理员模式运行的pycharm 不知道有没有关系）
1、点击文件按钮，选择设置。File------>Settings
2、选择Project:******---------->Project Interpreter。
3、点击有上角的绿色加号+键。
4、输入requests（同理在此添加别的模块也行），后选择想要安装的模块，最后点击左下方的Install Package等待安装即可。
这是我的解决方案，希望可以帮到大家！！！