Developed and delivered a feature for the picnixz/cpython repository that enables HTML export of calendar views for a specific month and year through the command-line interface. This enhancement to the calendar module was implemented using Python, with a focus on backend development and robust unit testing to ensure reliability. The work addressed a feature request by introducing a clear, easily reviewable change set that improves data portability and supports sharing and reporting workflows. Collaboration was demonstrated through co-authorship, with careful attention to code quality and traceability. No bugs were fixed during this period, reflecting a targeted and focused development effort.