Dear @dparsons ,
Thank you again a lot for dedicating so much time to my issue. I am answering you below:
I inspected it and here’s what I get:
$ ls /usr/local/lib/python3*/dist-packages
cycler-0.10.0.dist-info matplotlib __pycache__
cycler.py matplotlib-3.3.4.dist-info pylab.py
kiwisolver-1.3.1.dist-info matplotlib-3.3.4-py3.8-nspkg.pth pyparsing-2.4.7.dist-info
kiwisolver.cpython-38-x86_64-linux-gnu.so mpl_toolkits pyparsing.py
I don’t know if any of these packages may be causing the issue. Maybe kiwisolver?
Excuse me, do you mean the python code that generated the error? To obtain this error, I simply ran the code you suggested before:
python3 -c "import fenics; ccode = 'x[0] < 64 ? 1 : 0'; expression = fenics.Expression(ccode, degree=1); print(expression)"
But maybe I did’t get what you mean. Tell me whatever you need to know and I’ll be happy to tell you.
You are right, I’m sorry. What I meant is that running sh recompile.sh you get the same output of the error.log file, but I didn’t though of checking how the file actually looks like with vim. Here’s the actual content of the file (I broke the line to make it more readable):
#!/bin/bash
# Execute this file to recompile locally
c++ -Wall -shared -fPIC -std=c++11 -O3 -fno-math-errno
-fno-trapping-math -ffinite-math-only -I/usr/local/include
-I/usr/lib/petscdir/petsc3.12/x86_64-linux-gnu-real/include
-I/usr/lib/slepcdir/slepc3.12/x86_64-linux-gnu-real/include
-I/usr/lib/x86_64-linux-gnu/openmpi/include
-I/usr/lib/x86_64-linux-gnu/openmpi/include/openmpi
-I/usr/include/hdf5/openmpi -I/usr/include/eigen3
-I/home/francop/.local/share/virtualenvs/prova-pipenv-7FqKejdp/src/fenics-ffc/ffc/backends/ufc
-I/home/francop/.cache/dijitso/include dolfin_expression_daaaa038f9fbf86571aa796b263f0180.cpp
-L/usr/lib/x86_64-linux-gnu/openmpi/lib
-L/usr/lib/petscdir/petsc3.12/x86_64-linux-gnu-real/lib
-L/usr/lib/slepcdir/slepc3.12/x86_64-linux-gnu-real/lib
-L/usr/lib/x86_64-linux-gnu/hdf5/openmpi
-L/usr/local/lib
-L/home/francop/.cache/dijitso/lib
-Wl,-rpath,/home/francop/.cache/dijitso/lib
-lmpi -lmpi_cxx -lpetsc_real -lslepc_real -lm -ldl -lz -lsz -lhdf5 -lboost_timer
-ldolfin -olibdijitso-dolfin_expression_daaaa038f9fbf86571aa796b263f0180.so
And, even though I’m not an expert, I guess that’s the part causing the issue:
-I/home/francop/.local/share/virtualenvs/prova-pipenv-7FqKejdp/src/fenics-ffc/ffc/backends/ufc
For some reason it looks for ffc in a pipenv enivronment. Interestingly, that’s not the virtualenv mentioned earlier on the topic, but another random virtualenv I created today (after I encoutered this issue the first time).
I tried to delete the folder containing the environment, but this didn’t solve the issue (and the recompile.sh is still the same). Any other ideas?