HI, I was a user of Networkx but my graphs have surpassed its capabilities. I am running Ubuntu 13.04 and I am trying to install graph-tool. I have the proper versions of GCC, Boost, Python, expat, scipy, numpy, CGAL, sparsehash, cairomn, pycairo, matplotlib and graphviz. I should be able to run on the command line sudo apt-get install python-graph-tool or sudo apt-get install graph-tool Neither work and are throwing the error E: Unable to locate package python-graph-tool and E: Unable to locate package graph-tool So I tried downloading the tar ball and extracting and running ./configure and that through the error ... configure: error: Could not link test program to Python. Maybe the main Python library has been installed in some non-standard library path. If so, pass it to configure, via the LDFLAGS environment variable. Example: ./configure LDFLAGS="-L/usr/non-standard-path/python/lib" ============================================================================ ERROR! You probably have to install the development version of the Python package for your distribution. The exact name of this package varies among them. ============================================================================ I know that the Python library should not be the issue as I typed in the path and to no avail. If anyone sees anything obvious that I am missing or not doing please respond. Every other program I have ever wanted to install has been as easy as sudo apt-get install programname Thanks John