Error: no module named 'logic'

[skim2257]

Error while running CurvedPlanarReformat.py via SlicerPython, 3D Slicer version 5.8.1.

How to reproduce:

Add following lines to end of script:

def main():
    test = CurvedPlanarReformatTest()
    test.runTest()
    print("Full unit test passed")

if __name__ == "__main__":
    print("Starting Curved Planar Reformat Module")
    main()

./PythonSlicer /path/to/CurvedPlanarReformat.py

Output:

No module named 'logic'

Traceback (most recent call last):
  File "/redacted/CurvedPlanarReformation.py", line 621, in main
    test.runTest()
  File "/redacted/CurvedPlanarReformation.py", line 508, in runTest
    self.setUp()
  File "/redacted/CurvedPlanarReformation.py", line 503, in setUp
    slicer.mrmlScene.Clear(0)
AttributeError: module 'slicer' has no attribute 'mrmlScene'