Py4hs: a computer science teacher training programme promoting Python code clubsPy4hs: a computer science teacher training programme promoting Python code clubs Πλήρης Δημοσίευση σε Συνέδριο Conference Full Paper 2024-11-262021enWe present the design, implementation and evaluation of a training programme for Computer Science teachers on the educational use of the Python programming language inside and outside school. The programme used educational resources centred on meaningful, self-contained programming projects. The training programme followed a blended-learning approach thus offering an opportunity to many computer science teachers make their first steps towards the educational use of the Python language within a very promising learner-centred pedagogical framework. Using initially an online course made it possible to reach a much greater number of Computer Science teachers, especially those living in remote areas and through them, have a considerable impact on students through the subsequent establishment of local code clubs. Following the initial teachers’ training phase, groups of teachers that have been already formed were guided to establish local code clubs, recruit students, design a number of sessions and implement them. The evaluation results demonstrate the effectiveness of the code club approach and its acceptance by the participating students.The work reported in this paper was partially supported by the Google CS4HS programme (https://www.cs4hs.com/).http://creativecommons.org/licenses/by/4.0/937–94814th International Conference on Interactive Mobile Communication Technologies and LearningNew Realities, Mobile Systems and Applications Moumoutzis Nektarios Μουμουτζης Νεκταριος Boukeas George Vassilakis Vassilis Xanthaki Chara Pappas Nikolaos Παππας Νικολαος Springer Python programming Computer science in secondary education Code clubs