Other possibilities

There's a whole host of other types of content you can generate in Python. Here are a few more ideas and some pointers to libraries you could use to implement them:

• ZIP files: Python's standard library ships with the zipfile module, which can both read and write compressed ZIP files. You could use it to provide on-demand archives of a bunch of files, or perhaps compress large documents when requested. You could similarly produce TAR files using the standard library's tarfile module.

• Dynamic  images: The Python Imaging Library (PIL) (http://www.pythonware.com/products/pil/) is a fantastic toolkit for producing images (PNG, JPEG, GIF, and a whole lot more). You could use it to automatically scale down images into thumbnails, composite multiple images into a single frame, or even do web-based image processing.

• Plots and charts: There are a number of powerful Python plotting and charting libraries you could use to produce on-demand maps, charts, plots, and graphs. We can...