igraph Failed to install through pip

Question

Igraph failed to install through pip install python-igraph

Answer 1

For Ubuntu Users :

Python-igraph requires build-essential and python-dev dependencies.

Installing python-igraph through apt-get

Add the repository of igraph to apt:

sudo add-apt-repository ppa:igraph/ppa

Then update and install the python-igraph package:

sudo apt-get update
sudo apt-get install python-igraph

Answer 2

Some additional notes for ubuntu (16.04) users, (python 3.6)

I ran in to the same issue. For those of you who might have missed it. The complete list of dependencies are a bit longer than stated here. The list should be as stated in the readme

sudo apt-get install build-essential python-dev libxml2 libxml2-dev zlib1g-dev

this made it possible to install in a virtual environment through pip without adding the ppa (which failed for me with a 404 error).