[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.