<![CDATA[This study aims to analyze the effect of cashier system development training using Python Ipywidgets on the basic programming skills of students at SMA PGRI Pekanbaru. A quantitative approach was applied using a pre-experimental one-group pretest-posttest design. The sample consisted of 40 students who completed the training and both pre-test and post-test sessions. The research instrument was a multiple-choice test based on core programming competency indicators. Results showed an increase in the average score from 46.75% to 64.63%, with a gain of 17.88%. Inferential statistical analysis using a paired sample t-test confirmed a statistically significant improvement (p < 0.05). These findings indicate that real project-based training supported by interactive media such as Ipywidgets effectively enhances students’ understanding of fundamental programming concepts and strengthens digital literacy at the secondary school level.]]>
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