UnicodeDecodeError: 'ascii' codec can't decode byte 0xb7 in position 7: ordinal not in range(128)

python2.7

window环境

安装解析器lmxl时报错，报错内容如下：

UnicodeDecodeError: 'ascii' codec can't decode byte 0xb7 in position 7: ordinal not in range(128)

C:\Python27\Lib\site-packages>easy_install lxml

Searching for lxml

Reading https://pypi.python.org/simple/lxml/
Best match: lxml 3.5.0

Downloading https://pypi.python.org/packages/2.7/l/lxml/lxml-3.5.0.win-amd64-py2
.7.exe#md5=9d0c481f78928cd9d5a6b7f9fc53edef

Processing lxml-3.5.0.win-amd64-py2.7.exe

Traceback (most recent call last):

File "C:\Python27\Lib\site-packages\easy_install.py", line 5, in <module>

main()

File "C:\Python27\Lib\site-packages\setuptools\command\easy_install.py", line

2245, in main

distclass=DistributionWithoutHelpCommands, **kw

File "C:\Python27\lib\distutils\core.py", line 151, in setup

dist.run_commands()

File "C:\Python27\lib\distutils\dist.py", line 953, in run_commands

self.run_command(cmd)

File "C:\Python27\lib\distutils\dist.py", line 972, in run_command

cmd_obj.run()

File "C:\Python27\Lib\site-packages\setuptools\command\easy_install.py", line

380, in run

self.easy_install(spec, not self.no_deps)

File "C:\Python27\Lib\site-packages\setuptools\command\easy_install.py", line

629, in easy_install

return self.install_item(spec, dist.location, tmpdir, deps)

File "C:\Python27\Lib\site-packages\setuptools\command\easy_install.py", line

659, in install_item

dists = self.install_eggs(spec, download, tmpdir)

File "C:\Python27\Lib\site-packages\setuptools\command\easy_install.py", line

807, in install_eggs

return [self.install_exe(dist_filename, tmpdir)]

File "C:\Python27\Lib\site-packages\setuptools\command\easy_install.py", line

911, in install_exe

'.egg')

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

result_path = result_path + p_path

UnicodeDecodeError: 'ascii' codec can't decode byte 0xb7 in position 7: ordinal

not in range(128)

分析原因：

网上搜索资料，讲这是Python 2 mimetypes的bug

解决方法：

修改Python2.7/lib/mimetypes.py文件，添加部分如下所示：

import os

import sys

import posixpath

import urllib

####添加部分如下#####

if sys.getdefaultencoding() != 'gbk':

reload(sys)

sys.setdefaultencoding('gbk')

#################

添加后运行结果：

Installed c:\python27\lib\site-packages\lx

Processing dependencies for lxml

Finished processing dependencies for lxml

参考文档

有关requests、beautifulsoap4模块的安装说明
http://www.cnblogs.com/kaituorensheng/p/3722913.html http://www.crummy.com/software/BeautifulSoup/bs4/doc.zh/