Six issue when installing package on OS X 10.11 El Capitan

When you try to install a package using pip and get the error:

  Using cached wcwidth-0.1.6-py2.py3-none-any.whl
Installing collected packages: six, wcwidth, prompt-toolkit, haxor-news
  Found existing installation: six 1.4.1
    DEPRECATION: Uninstalling a distutils installed project (six) has been deprecated and will be removed in a future version. This is due to the fact that uninstalling a distutils project will only partially uninstall the project.
    Uninstalling six-1.4.1:
Traceback (most recent call last):
  File "/Library/Python/2.7/site-packages/pip/", line 215, in main
    status =, args)
  File "/Library/Python/2.7/site-packages/pip/commands/", line 317, in run
  File "/Library/Python/2.7/site-packages/pip/req/", line 736, in install
  File "/Library/Python/2.7/site-packages/pip/req/", line 742, in uninstall
  File "/Library/Python/2.7/site-packages/pip/req/", line 115, in remove
    renames(path, new_path)
  File "/Library/Python/2.7/site-packages/pip/utils/", line 267, in renames
    shutil.move(old, new)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/", line 302, in move
    copy2(src, real_dst)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/", line 131, in copy2
    copystat(src, dst)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/", line 103, in copystat
    os.chflags(dst, st.st_flags)
OSError: [Errno 1] Operation not permitted: '/var/folders/n9/_fg0q1355sb_dews4_l21t1y5400gn/T/pip-J9rnh3-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/six-1.4.1-py2.7.egg-info'


There is a known pip issue with OSX.

 $ sudo pip install package --upgrade --ignore-installed six