Hidden line removal in JavaScript or Python?

I have the following task:

• Input:

  A 3D scene comprised of a set of cuboids. Could be broken down to a set of triangles.

  A description of a camera: position, direction, foca开发者_StackOverflowl length.

• Output: 2D wire frame projection of the scene as a set of lines. Important: Hidden lines removal should have been applied.

• Platform: Web app running on Google App Engine for Python.

Any idea if there is a JavaScript or Python library that does this?

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Maybe the Python Nacrisse interface is useful?