Problem when import SimpleGrader

[hugh-tong]

• I found that in example/chaining/tank.py. I run the example and got:

Traceback (most recent call last):
  File "tank.py", line 27, in <module>
    grader = cb.SimpleGrader(mesh, 0.05)
AttributeError: module 'classy_blocks' has no attribute 'SimpleGrader'

• And I found that in __init__.py，the SimpleGrader is imported with correct path!

from .grading.autograding.fixed.grader import FixedCountGrader
from .grading.autograding.simple.grader import SimpleGrader
from .grading.autograding.smooth.grader import SmoothGrader

1. Then I use print(dir(cb)) to show the imported module. The three graders are all not imported!

['AnalyticCurve', 'Angle', 'Arc', 'Box', 'CircleCurve', 'ClampBase', 'Connector', 'CurveBase', 'CurveClamp', 'Cylinder', 'DiscreteCurve', 'Elbow', 'Extrude', 'ExtrudedRing', 'ExtrudedShape', 'ExtrudedStack', 'Face', 'FourCoreDisk', 'FreeClamp', 'Frustum', 'GeometricFinder', 'Grid', 'HalfDisk', 'HalfSplineDisk', 'HalfSplineRing', 'Hemisphere', 'LJoint', 'LineClamp', 'LineCurve', 'LinearInterpolatedCurve', 'LinkBase', 'Loft', 'LoftedShape', 'MappedSketch', 'Mesh', 'MeshOptimizer', 'MeshSmoother', 'Mirror', 'NJoint', 'OnCurve', 'OneCoreDisk', 'Operation', 'Origin', 'Oval', 'ParametricSurfaceClamp', 'PlaneClamp', 'PolyLine', 'Project', 'QuarterSplineDisk', 'QuarterSplineRing', 'RadialClamp', 'Revolve', 'RevolvedRing', 'RevolvedShape', 'RevolvedStack', 'Rotation', 'RotationLink', 'RoundSolidFinder', 'Scaling', 'SemiCylinder', 'Shape', 'Shear', 'Shell', 'SketchOptimizer', 'SketchSmoother', 'Spline', 'SplineDisk', 'SplineInterpolatedCurve', 'SplineRing', 'SymmetryLink', 'TJoint', 'TransformedStack', 'Translation', 'TranslationLink', 'ViewpointReorienter', 'Wedge', 'WrappedDisk', '__all__', '__builtins__', '__cached__', '__doc__', '__file__', '__loader__', '__name__', '__package__', '__path__', '__spec__', 'base', 'construct', 'grading', 'items', 'lists', 'mesh', 'modify', 'optimize', 'types', 'util']

• After that, I think there may be problem with the filename 'grader' can not be same, I commet the other two but get the same error.

[FranzBangar]

This has happened before with other imports but remained unexplained. Have you checked out the latest commits on master/development?

I hate to say that but it works on my machine

[hugh-tong]

This has happened before with other imports but remained unexplained. Have you checked out the latest commits on master/development?

I hate to say that but it works on my machine

Yes I checked out the latest commits.

Finally I found the reason! I updated the python version from Python3.8.10 to Python 3.12.9, and put all things in a conda virtual environment with the updated python version :

py tttt_playground ~/w/4/classy_blocks/e/chaining loc_dev:tttt_dev > python --version 
Python 3.12.9
py tttt_playground ~/w/4/classy_blocks/e/chaining loc_dev:tttt_dev > /usr/bin/python3 --version 
Python 3.8.10

and reinstall using:

pip install git+https://github.com/damogranlabs/classy_blocks.git

then , problem solved! XD

[FranzBangar]

Strange. Python version shouldn't make any difference, it should work with 3.8+. I'll add direct imports to tests. Glad you solved it! Again, the cause remains a mystery.