ETS Enable metaclass conflict error resolve

I have trouble launching Enable from ETS package. My comrades running the same package of ETS succesfully. They have x86_64 Ubuntu, but I have x86 version.

After a lot of time I've found solution:

So, if you have trouble launching Enable such as:

from enthought.enable.api import Window
  File "/usr/local/lib/python2.7/dist-packages/etsproxy-0.1.0-py2.7.egg/enthought/enable/api.py", line 2, in <module>
    from enable.api import *
  File "/usr/local/lib/python2.7/dist-packages/Enable-3.4.2-py2.7-linux-i686.egg/enable/api.py", line 42, in <module>
    from graphics_context import GraphicsContextEnable, ImageGraphicsContextEnable
  File "/usr/local/lib/python2.7/dist-packages/Enable-3.4.2-py2.7-linux-i686.egg/enable/graphics_context.py", line 85, in <module>
    class GraphicsContextEnable(EnableGCMixin, GraphicsContext):
TypeError: Error when calling the metaclass bases
    metaclass conflict: the metaclass of a derived class must be a (non-strict) subclass of the metaclasses of all its bases

You need to create site.cfg file in enable directory with this contents:

[x11]
library_dirs=/usr/lib:/usr/lib/X11:/usr/lib/i386-linux-gnu
include_dirs=/usr/include/X11:/usr/include:/usr/lib/i386-linux-gnu

Then, run python setup.py build and python setup.py install

If that doesn't help, use the following:

LD_PRELOAD=/usr/lib/i386-linux-gnu/libX11.so python myawesomefile.py