I have found this answer from author “edward”
On Ubuntu precise, PIL doesn’t find the jpeg library files, even once they are installed. The easiest way to fix this is to make a symlink after you have installed the jpeg dev package. So, I needed an extra step:
for x64 OS
pip uninstall PIL
sudo apt-get install libjpeg8-dev
sudo ln -s /usr/lib/x86_64-linux-gnu/libjpeg.so /usr/lib
pip install PIL
for x32 OS
pip uninstall PIL
sudo apt-get install libjpeg8-dev
sudo ln -s /usr/lib/i386-linux-gnu/libjpeg.so /usr/lib
pip install PIL
I confirm that this is working for me on Ubuntu Linux 12.04.
If you are a Mac user – you need to install Xcode and Command Line Tools. Read how to do this