IOError: decoder jpeg not available

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

# sudo apt-get install python-dev libjpeg-dev libfreetype6-dev zlib1g-dev

// create these links, if already exists, remove it and re-link it
# ln -s /usr/lib/x86_64-linux-gnu/libjpeg.so /usr/lib
# ln -s /usr/lib/x86_64-linux-gnu/libfreetype.so /usr/lib
# ln -s /usr/lib/x86_64-linux-gnu/libz.so /usr/lib

// reinstall PIL
# pip uninstall PIL
# pip install PIL