="highlighter-rouge">pip install python-igraph</code> will not work on Windows! So the preferred way to install  the Python interface on Windows is to download one of the unofficial installers built by <a href="https://www.lfd.uci.edu/~gohlke/pythonlibs/#python-igraph">Christoph Gohlke</a>. Download it according to your python and Windows version. Because <code class="highlighter-rouge">python-igraph</code> depends on <code class="highlighter-rouge">pycairo</code>, you should download <a href="https://www.l