Sebastian Buczyński - Distributed locks with Python and Redis [EuroPython 2015] [22 July 2015] [Bilbao, Euskadi, Spain] Traditional methods of coping with concurrent programming problems are well-known and described in literature. Many programming languages, including Python, contain in their standard libraries tools and primitives such as semaphores and can spawn threads or subprocesses. However, in the face of increasing interest in service oriented architecture and building distributed systems, that span across many independent server nodes, emerges a need to adapt traditional solutions, so they can be applied in the new environment. In this talk I will share my experiences gathered during building a modern contact center - highly concurrent system, which requires certain resources to be accessed exclusively by several self-contained components.