How to Install PIL in El Capitan with Pip? I would like to install PIL by Pip but the code is unsuccessful

pip install PIL
Collecting PIL
  Could not find a version that satisfies the requirement PIL (from versions: )
No matching distribution found for PIL


I know the outdated thread here about How can I install PIL on mac os x 10.7.2 Lion, and my versions should be ok, since they are most updated.
My Pip and Python versions in OS X 10.11.4 El Capitan

pip --version
pip 8.1.1 from /Library/Python/2.7/site-packages (python 2.7)


My pip is installed by sudo python get-pip.py of the mother site. 
I have the newest xcode installed

gcc --version
Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/usr/include/c++/4.2.1
Apple LLVM version 7.3.0 (clang-703.0.29)
Target: x86_64-apple-darwin15.4.0
Thread model: posix
InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin




How can you install Pil in OS X 10.11.4?
This is because PIL is not setuptools compatible (https://mail.python.org/pipermail/image-sig/2010-August/006480.html) and has as such probably never been installable through pip. I think in general it should be considered deprecated in favor of Pillow which is an actively developed compatible fork of PIL.

So what you want to do is pip install Pillow, and also consider different pip usage since El Capitan like described in another thread here.