Install AWSCLI on Mac OS X El Capitan (python error solution)

So you installed the new OS X El Capitan in your MacBook. Then you tried to install AWSCLI... and it did not worked, right?

Probably you got the following error message:

sudo -H pip2.7 install awscli
Collecting awscli
(...)
Installing collected packages: six, python-dateutil, docutils, botocore, 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: '/tmp/pip-Za5ewE-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/six-1.4.1-py2.7.egg-info'

How to fix it?

1) Install brew (if not installed):

ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

2) Install xcode:

xcode-select --install

3) Reinstall python with brew:

brew reinstall python

4) Reinstall the failing package (in this case six-1.4.1):

sudo pip install -U six

5) And finally install the AWSCLI:

sudo -H pip install awscli

This fix worked for me perfectly and now I can start working with the awscli (see my other blogs to know how to setup the cli in your MAC).