linux安装python-igraph:

$ sudo apt-get install -y libigraph0-dev

$ pip install python-igraph

------for plotting------------------------

$ sudo apt-get install libcairo2-dev

$ git clone https://github.com/pygobject/pycairo.git

$ cd pycairo/

$ python setup.py install

---------python3 plot 报编码错误解决办法------

$ pico ~/anaconda2/envs/py3/lib/python3.6/site-packages/igraph/drawing/__init__.py

io.getvalue().encode("utf-8")  --修改-->  io.getvalue().decode("utf-8")