[CD1212]

Since anyfoo suggested contacting Google, it may be worthwhile contacting GCHQ [1] (they are the UK intelligence / code breaking agency). It is a very possible that they use Python internally. Since they are public sector rather than private sector it may not be of much help, but it is just an idea. Hope it helps!

[1]: http://www.gchq.gov.uk/

[DanBC]

GCHQ / CESG probably aren't going to say anything that's not in their published literature.

Maybe one of the recruitment leaflets talks about Python, but the one I saw didn't mention it.

(http://www.gchq-careers.co.uk/media/21423/gchq_technical.pdf)

> Facing some of the most complex challenges in the industry, our work ranges from small teams with each individual working the whole engineering lifecycle, through to £multi-million programmes staffed by specialist professionals cutting across industry, government and national boundaries. From Software Developers (primarily Java, JEE, C and C++), Database Developers (Oracle), Software Designers and Architects (with OO, UML) to Configuration Managers, Build and Integration Managers and more, the roles here are many and varied.