Cython-based Python package implementating of Pathway Graphical Lasso is available for download from GitHub. (Academic Use Only) 

Uses a significantly optimized Cython implementation of DP-GLasso based on the code from CRAN
This is a regular Python package, to install unpack the archive and do:
python build
python install
Dependencies: numpy, cython, networkx.

Example script is attached to this page
Unknown user,
Nov 10, 2014, 5:42 PM