pip install 问题

C:\Users\用户>pip install NumPy
Collecting NumPy
Exception:
Traceback (most recent call last):
File “c:\python27\lib\site-packages\pip\basecommand.py”, line 215, in main
status = self.run(options, args)
File “c:\python27\lib\site-packages\pip\commands\install.py”, line 324, in run
requirement_set.prepare_files(finder)
File “c:\python27\lib\site-packages\pip\req\req_set.py”, line 380, in prepare_files
ignore_dependencies=self.ignore_dependencies))
File “c:\python27\lib\site-packages\pip\req\req_set.py”, line 620, in _prepare_file
session=self.session, hashes=hashes)
File “c:\python27\lib\site-packages\pip\download.py”, line 821, in unpack_url
hashes=hashes
File “c:\python27\lib\site-packages\pip\download.py”, line 659, in unpack_http_url
hashes)
File “c:\python27\lib\site-packages\pip\download.py”, line 880, in _download_http_url
file_path = os.path.join(temp_dir, filename)
File “c:\python27\lib\ntpath.py”, line 85, in join
result_path = result_path + p_path
UnicodeDecodeError: ‘ascii’ codec can’t decode byte 0xd3 in position 7: ordinal not in range(128)
---------------------
找了一个python大神，解决了一下午都没发现具体是啥原因，软件下载了再卸载，在换版本在安装还是不行，不得已从D盘安装到了C盘，今天早上无意间看了 ：https://blog.csdn.net/u013567842/article/details/68955214 这篇文章，才发现问题，感谢这个博主

解决办法：

原因是pip安装Python包会加载我的用户目录，我的用户目录恰好是中文的，ascii不能编码。
解决办法是： 
python目录 Python27\Lib\site-packages 建一个文件sitecustomize.py 
内容写： 
import sys 
sys.setdefaultencoding('gbk') 
python会自动运行这个文件。