2016.2 Expression problem ? (Conda install)

Question

Hi all,

Is there a problem with recent update 2016.2 about the Expression class ?

For example:

s = Expression('cos(x[0])*sin(x[1])', degree = 2)

returns an error. I'm also having trouble with Expression subclass in python. Is that common to any other user ?

Thanks a lot,

JayC

Comments

Could you be more precise? So:
1) How do you use FEniCS? (Docker image/desktop installation/...)
2) Which error do you get?

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Thanks for your quick answer.

I'm using Fenics 2016.2, installed with conda. My Python version is 3.5.

code:
mesh = UnitSquareMesh(10, 10)
V = FunctionSpace(mesh, 'Lagrange', 2)
s = Expression('cos(x[0])*cos(x[1])', degree = 2)

error:
RuntimeError: In instant.recompile: The module did not compile with command 'make VERBOSE=1', see '/home/local/me/.cache/instant/python3.5/error/dolfin_5bc53b03da7acb3e2d4733ebf3b5ee3b6e55581b/compile.log'

Is that helpful ?

I tried the same instructions in Docker setup, it works fine.

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We need to see the contents of compile.log to be able to help you. Did you use the fenics packages in conda-forge? They are AFAICT not updated to the 2016.2 release.

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Thanks for your answer. I'm indeed using fenics 2016.2.dev for py35_3 from conda_forge. Shall i upload this file anyway ?

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Ok, that is not the real 2016.2 release, but a one month old development version. It is probably better to report this as an issue on the fenics-feedstock.

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Well yes, I am interested in the compile.log file. Maybe you can tell me if you face the same error in the log file as here. Since I faced and solved a similar issue as reported there a few weeks ago.