title: Error installing python-igraph on Ubuntu (from command line)
body: <p>I'm trying to install python-igraph from command line. I created a new Ubuntu instance on an AWS server, so I have to do everything from command line.  Here is what I have done from a fresh install of Ubuntu:</p>
  
  <pre><code>$sudo apt-get update
  $sudo apt-get install build-essential
  $sudo apt-get install python-dev
  $sudo apt-get update
  $sudo apt-get install python-pip
  $sudo apt-get update
  $sudo pip install python-igraph
  </code></pre>
  
  <p>I get the following error:</p>
  
  <pre><code>Command /usr/bin/python -c "import setuptools, tokenize;__file__='/tmp/pip_build_root/python-igraph/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-XxxMbQ-record/install-record.txt --single-version-externally-managed --compile failed with error code 1 in /tmp/pip_build_root/python-igraph
  Traceback (most recent call last):
   File "/usr/bin/pip", line 9, in &lt;module&gt;
  load_entry_point('pip==1.5.4', 'console_scripts', 'pip')()
   File "/usr/lib/python2.7/dist-packages/pip/__init__.py", line 235, in main
  return command.main(cmd_args)
   File "/usr/lib/python2.7/dist-packages/pip/basecommand.py", line 161, in main
  text = '\n'.join(complete_log)
  UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 32: ordinal not in range(128)
  </code></pre>