File "c:\python\python35\lib\site-packages\pip\_vendor\requests\packages\urllib3\response.py", line 357, in stream
 data = self.read(amt=amt, decode_content=decode_content)
File "c:\python\python35\lib\site-packages\pip\_vendor\requests\packages\urllib3\response.py", line 324, in read
 flush_decoder = True
File "c:\python\python35\lib\contextlib.py", line 77, in __exit__
 self.gen.throw(type, value, traceback)
File "c:\python\python35\lib\site-packages\pip\_vendor\requests\packages\urllib3\response.py", line 237, in _error_catcher
 raise ReadTimeoutError(self._pool, None, 'Read timed out.')
p._vendor.requests.packages.urllib3.exceptions.ReadTimeoutError: HTTPSConnectionPool(host='pypi.python.org', port=443): Read timed out.

pip --default-timeout=1000 install -U pip

pip install pyinstaller -i https://pypi.doubanio.com/simple