Coding the practice exercise given by Nick during his Safari Online Training.
Nick's Safari Online Training is running again on Jan 11th. I highly recommended it if you are getting into Python or would like a refresher!
$ python -m unittest -v unittests/triangle_test.py
test_area (unittests.triangle_test.TriangleTest) ... ok
test_is_rightangle (unittests.triangle_test.TriangleTest) ... ok
test_is_triangle (unittests.triangle_test.TriangleTest) ... ok
test_perimeter (unittests.triangle_test.TriangleTest) ... ok
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Ran 4 tests in 0.000s
OK