manually install python modules
manually install python modules https://stackoverflow.com/questions/32798137/importerror-no-module-named-appdirs
download modules from pypi.python.org
wget https://pypi.python.org/packages/48/69/d87c60746b393309ca30761f8e2b49473d43450b150cb08f3c6df5c11be5/appdirs-1.4.3.tar.gz
gunzip appdirs-1.4.3.tar.gz
tar -xvf appdirs-1.4.3.tar
cd appdirs-1.4.3
sudo python setup.py install