[Python] How can I automate the dieline generation process for custom packaging using Python?

I am working on automating the dieline generation process for custom packaging boxes. The goal is to create SVG or DXF files that can be used for cutting and printing. I am considering using Python with libraries like Shapely, OpenCV, or ReportLab. Has anyone implemented a similar solution, or are there better tools for this task?

Additionally, how can I integrate this automation into a web-based ordering system where users can input dimensions and get an instant dieline preview? Any insights or sample code would be appreciated!

I experimented with Python libraries like Shapely and ReportLab to generate basic dieline shapes, but aligning fold lines, cut marks, and bleed areas accurately has been challenging. I also explored using OpenCV for image-based template processing but found it difficult to scale for different box sizes dynamically.

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