Python 2.7.5 I met error when I use pip install bleach

Downloading from URL [url=https://pypi.python.org/packages/85/3e/cf449cf1b5004e87510b9368e7a5f1acd8831c2d6691edd3c62a0823f98f/html5lib-1.0.1.tar.gz#md5=942a0688d6bdf20d087c9805c40182ad]https://pypi.python.org/packag ... 182ad[/url] (from [url=https://pypi.python.org/simple/html5lib]https://pypi.python.org/simple/html5lib[/url]/)

  Running setup.py egg_info for package html5lib



    Traceback (most recent call last):



      File "<string>", line 16, in <module>



      File "/root/maodou/venv/build/html5lib/setup.py", line 54, in <module>



        MarkerEvaluation = pkg_resources.MarkerEvaluation



    AttributeError: 'module' object has no attribute 'MarkerEvaluation'



    Complete output from command python setup.py egg_info:



    Traceback (most recent call last):



  File "<string>", line 16, in <module>



  File "/root/maodou/venv/build/html5lib/setup.py", line 54, in <module>



    MarkerEvaluation = pkg_resources.MarkerEvaluation



AttributeError: 'module' object has no attribute 'MarkerEvaluation'



----------------------------------------



Cleaning up...



  Removing temporary dir /root/maodou/venv/build...

Command python setup.py egg_info failed with error code 1 in /root/maodou/venv/build/html5lib



Exception information:

Traceback (most recent call last):

  File "/root/maodou/venv/lib/python2.7/site-packages/pip/basecommand.py", line 134, in main

    status = self.run(options, args)

  File "/root/maodou/venv/lib/python2.7/site-packages/pip/commands/install.py", line 236, in run

    requirement_set.prepare_files(finder, force_root_egg_info=self.bundle, bundle=self.bundle)

  File "/root/maodou/venv/lib/python2.7/site-packages/pip/req.py", line 1134, in prepare_files

    req_to_install.run_egg_info()

  File "/root/maodou/venv/lib/python2.7/site-packages/pip/req.py", line 259, in run_egg_info

    command_desc='python setup.py egg_info')

  File "/root/maodou/venv/lib/python2.7/site-packages/pip/util.py", line 670, in call_subprocess

    % (command_desc, proc.returncode, cwd))

InstallationError: Command python setup.py egg_info failed with error code 1 in /root/maodou/venv/build/html5lib