Coding Dojo

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Participants: DaniloSato , FabricioSousa , HugoCorbucci , JacquelineMarchetti , JulianMonteiro , LucianoRamalho , MarianaBravo , NateAune , RodrigoPimentel and ThiagoColucci

Scribe: DaniloSato

Kata: “Mesa da Sra. Montagny” (in Portuguese) in Python (


20:00 ~ 20:20 Discussion of the Kata

This time DaniloSato and MarianaBravo presented a PreparedKata . In the beginning, the problem was presented and the group discussed an overall approach to solve it. The problem involved creating and bi-coloring a graph with n People nodes and m Friendship edges.

20:20 ~ 22:00 Coding Session

This was the first time we tried to present a PreparedKata using pair programming. Also, the discussion and suggestions from the audience were helpful and raised some important issues. We were able to finish the code, using a Breadth-First Search algorithm, using a queue. The test cases helped us tackle the problem step by step. The final code is available at

22:00 ~ 22:15 Retrospective

For the first time, we had an international guest at our session: NateAune (, member of the Plone Foundation. He came to Brazil to present at Pycon and we invited him to experience TDD, pair programming, and the Dojo. It was also nice to solve a graph search algorithm with TDD. People were felling a little confused with the results from the last meeting, and experiencing the RythmOfTestFirst work was rewarding. Another nice thing was to use FabricioSousa ’s Tk GUI that showed a nice colored bar that was updated every time the tests were executed. It helps the audience to know when we’re at a red or green bar.