title: global name 'GLib2Reactor' is not defined
body: <p>I'm struggling to get some python code using the python-brisa framework to work, the code is not written by me but should be straight forward.</p>
  
  <pre><code>    from brisa.core.reactors import install_default_reactor
  reactor = install_default_reactor()
  
  from brisa.core.threaded_call import run_async_function
  
  import xml.etree.ElementTree as ET
  
  from time import sleep
  
  import sys, os
  
  import sonos
  import knx
  </code></pre>
  
  <p>Howewer after installing the frameworks I get </p>
  
  <pre><code>Traceback (most recent call last):
    File "knxsonos.py", line 24, in &lt;module&gt;
      reactor = install_default_reactor()
    File "/usr/local/lib/python2.7/dist-packages/brisa/core/reactors/__init__.py", line 14, in install_default_reactor
      return GLib2Reactor()
  NameError: global name 'GLib2Reactor' is not defined
  </code></pre>
  
  <p>I have been looking both stack overflow, and googling for days without finding a solution. </p>
  
  <p>Anyone??, help would be greatly appreciated...</p>