HOW TO INSTALL VMTK UNDER LINUX/OSX:

sudo easy_install <vmtk-egg>

POST INSTALL FOR LINUX AND MACOSX:

sudo vmtk_post_install.py

HOW TO INSTALL VMTK UNDER WINDOWS:

Run the installer
or
install setuptools ---> (https://pypi.python.org/pypi/setuptools#windows)
sudo easy_install <vmtk-egg>

HOW TO BUILD A VMTK PYTHON EGG FROM SOURCE:

compile vmtk from source ---> (http://vmtk.github.io/documentation/installation.html#installing_from_source)
python setup.py vmtk_build
python setup.py bdist_egg
or for Windows:
python setup.py bdist_wininst --install-script vmtk_post_install.py

HOW TO UPGRADE VMTK UNDER LINUX/OSX:

sudo easy_install --upgrade vmtk

HOW TO UPGRADE VMTK UNDER WINDOWS:

Run the installer
or
install setuptools ---> (https://pypi.python.org/pypi/setuptools#windows)
sudo easy_install --upgrade vmtk