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usnistgov / fipy

FiPy is a Finite Volume PDE solver written in Python
http://pages.nist.gov/fipy/en/latest
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Having problem with Viewer #944

Closed guyer closed 1 year ago

guyer commented 1 year ago

Discussed in https://github.com/usnistgov/fipy/discussions/943

Originally posted by **RadheChandu** August 29, 2023 Hello FipyTeam, I am getting the following error while I was trying the examples on FiPy website. ```python Uncaught exception: Traceback (most recent call last): File "~\test1.py", line 30, in viewer = Viewer(vars=phi, File "C:\ProgramData\Anaconda3\lib\site-packages\fipy\viewers\__init__.py", line 105, in Viewer for name, ep in sorted(enpts): TypeError: '<' not supported between instances of 'EntryPoint' and 'EntryPoint' ``` This was the example code I was working on. ```python from fipy import Grid1D, ExplicitDiffusionTerm, TransientTerm, Viewer, CellVariable nx = 50 dx = 1. mesh = Grid1D(nx=nx, dx=dx) phi = CellVariable(name="solution variable", mesh=mesh, value=0.) D = 1. valueLeft = 1 valueRight = 0 phi.constrain(valueRight, mesh.facesRight) phi.constrain(valueLeft, mesh.facesLeft) eqX = TransientTerm() == ExplicitDiffusionTerm(coeff=D) if __name__ == '__main__': viewer = Viewer(vars=phi, datamin=0., datamax=1.) viewer.plot() ``` I have even tried installing on a new environment, but still was getting the same error. Can someone please help me solve this error?
guyer commented 1 year ago

pkg_resources is deprecated. Update to use importlib.metadata.