Until the library is officially released, these installation instructions explicitly reference the bitbucket repository.
Assuming you have pip installed on your system, the key steps for the minimal install are:
$ pip install numpy
DONT_USE_CYTHON=1 if you want to be sure and use the
*.c files we generated. If you don’t have Cython installed, it has no effect.
To use the drawing and parallel computing capabilities, you will need to download a zip archive as indicated above. Then do:
$ pip install /path/to/downloaded/archive.zip[all]
Support not yet in place, but it will be...