PyMeld
PyMeld is an interesting thing; it allows you to take a piece of HTML and access it, change it, and generally fiddle about with it using a Pythonic sort of model. In essence, you create a Meld object from a piece of HTML, and then all elements in the HTML with an id become sub-objects of the Meld. You can then add new HTML just by adding things to the element, so on and so forth. Very neat. I think I may have a play with this — I can think of how it might be useful for Vellum.
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