I've been trying to install python-igraph on a vagrant virtual machine (ubuntu/trusty32) nonetheless, i keep getting a UnicodeError when running pip install python-igraph, the same as in this issue. The only way to install python-igraph was to follow the instructions in the igraph wiki. That is, to run:
pip install python-igraph
sudo add-apt-repository ppa:igraph/ppa
sudo apt-get update
sudo apt-get install python-igraph
However, the latest version in this repo is 0.6.5. I can now use python-igraph but would like to use some of the features in the 0.7.1 version, so it would be nice to update the ppa repo with the latest version.