python用pip装第三方库numpy时报错：UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 7: ordi

python用pip装第三方库numpy时一直报错：UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 7: ordinal not in range(128)

pip install numpy

Collecting numpy

Exception:

Traceback (most recent call last):

  File "E:\Python27\lib\site-packages\pip-9.0.1-py2.7.egg\pip\basecommand.py", line 215, in main

    status = self.run(options, args)

  File "E:\Python27\lib\site-packages\pip-9.0.1-py2.7.egg\pip\commands\install.py", line 324, in run

    requirement_set.prepare_files(finder)

  File "E:\Python27\lib\site-packages\pip-9.0.1-py2.7.egg\pip\req\req_set.py", line 380, in prepare_files

    ignore_dependencies=self.ignore_dependencies))

  File "E:\Python27\lib\site-packages\pip-9.0.1-py2.7.egg\pip\req\req_set.py", line 620, in _prepare_file

    session=self.session, hashes=hashes)

  File "E:\Python27\lib\site-packages\pip-9.0.1-py2.7.egg\pip\download.py", line 821, in unpack_url

    hashes=hashes

  File "E:\Python27\lib\site-packages\pip-9.0.1-py2.7.egg\pip\download.py", line 659, in unpack_http_url

    hashes)

  File "E:\Python27\lib\site-packages\pip-9.0.1-py2.7.egg\pip\download.py", line 880, in _download_http_url

    file_path = os.path.join(temp_dir, filename)

  File "E:\Python27\lib\ntpath.py", line 85, in join

    result_path = result_path + p_path
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 7: ordinal not in range(128)

网上查了方法，方法1：

很多说在文件开头加入三行：

import sys
reload(sys)
sys.setdefaultencoding('utf-8')

但是装第三方库并不是运行自己写的程序，所以不能加。

方法2：打开python27/Lib文件夹下的mimetypes.py文件，在253行左右，在default_encoding=sys.getdefaultencoding()前加三行：

if
sys.setdefaultencoding()!='gbk':
reload(sys)
sys.setdefaultencoding('gbk')
default_encoding=sys.getdefaultencoding()

但是还是同样的问题。

方法3：打开python27/Lib文件夹下的site.py文件,修改defsetencoding()方法：

defsetencoding()
if 0:

把if 0改为if 1.但还是没有解决问题。

方法4：打开python27/Lib文件夹下的site.py文件,在文件开头加入三行：

import
sys
reload(sys)
sys.setdefaultencoding('utf-8')

顺利解决问题。分享给大家。