DS9 gaussian fitting

One thing DS9 desperately needs is an interactive gaussian fitter. I have NOT implemented one yet, but it is high on my to do list. Has anyone else (googlers?) tried or succeeded in implementing such a thing? Ideally, something with NO dependencies: if I write one, it will require python, numpy, and probably pyds9 - ick. Straight-up TCL would be very much preferable.

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