Six issue when installing package

When trying to install awscli I get the following error.

admins-MacBook-Pro-5:~ user$ pip install awscli
Collecting awscli
  Using cached awscli-1.8.9-py2.py3-none-any.whl
Collecting botocore==1.2.7 (from awscli)
  Using cached botocore-1.2.7-py2.py3-none-any.whl
Collecting rsa<=3.3.0,>=3.1.2 (from awscli)
  Using cached rsa-3.2-py2.py3-none-any.whl
Collecting colorama<=0.3.3,>=0.2.5 (from awscli)
Collecting docutils>=0.10 (from awscli)
Requirement already satisfied (use --upgrade to upgrade): jmespath<1.0.0,>=0.7.1 in /Library/Python/2.7/site-packages (from botocore==1.2.7->awscli)
Collecting python-dateutil<3.0.0,>=2.1 (from botocore==1.2.7->awscli)
  Using cached python_dateutil-2.4.2-py2.py3-none-any.whl
Collecting pyasn1>=0.1.3 (from rsa<=3.3.0,>=3.1.2->awscli)
  Using cached pyasn1-0.1.9-py2.py3-none-any.whl
Collecting six>=1.5 (from python-dateutil<3.0.0,>=2.1->botocore==1.2.7->awscli)
  Using cached six-1.9.0-py2.py3-none-any.whl
Installing collected packages: six, python-dateutil, docutils, botocore, pyasn1, rsa, colorama, awscli
  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:
Exception:
Traceback (most recent call last):
  File "/Library/Python/2.7/site-packages/pip/basecommand.py", line 211, in main
    status = self.run(options, args)
  File "/Library/Python/2.7/site-packages/pip/commands/install.py", line 311, in run
    root=options.root_path,
  File "/Library/Python/2.7/site-packages/pip/req/req_set.py", line 640, in install
    requirement.uninstall(auto_confirm=True)
  File "/Library/Python/2.7/site-packages/pip/req/req_install.py", line 716, in uninstall
    paths_to_remove.remove(auto_confirm)
  File "/Library/Python/2.7/site-packages/pip/req/req_uninstall.py", line 125, in remove
    renames(path, new_path)
  File "/Library/Python/2.7/site-packages/pip/utils/__init__.py", line 315, in renames
    shutil.move(old, new)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/shutil.py", line 302, in move
    copy2(src, real_dst)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/shutil.py", line 131, in copy2
    copystat(src, dst)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/shutil.py", line 103, in copystat
    os.chflags(dst, st.st_flags)
OSError: [Errno 1] Operation not permitted: '/var/folders/6t/h404bjcd5tb_4q86tpv_251rv_0h0j/T/pip-sYsqDS-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/six-1.4.1-py2.7.egg-info'

Other user have mentioned the issue and point to pip:

https://github.com/aws/aws-cli/issues/1522

https://bitbucket.org/gutworth/six/issues/134/uninstall-error-operation-not-permitted

[dstufft]

pip install --ignore-installed six

[dstufft]

This is because OS X El Capitan ships with six 1.4.1 installed already and when it attempts to uninstall it (because awscli depends on botocore, botocore depends on python-dateutil, and python-dateutil depends on six >= 1.5) it doesn’t have permission to do so because System Integrity Protection doesn’t allow even root to modify those directories.

Ideally, pip should just skip uninstalling those items since they aren’t installed to site-packages they are installed to a special Apple directory. However, even if pip skips uninstalling those items and installs six into site-packages we’ll hit another bug where Apple puts their pre-installed stuff earlier in the sys.path than site-packages. I’ve talked to Apple about this and I’m not sure if they’re going to do anything about it or not.