Undefined Symbol Error about fmodpy HOT 3 CLOSED

This error generally means that the automatically generated Fortran BIND(C) wrapper did not successfully compile. Inside the generated python module (directory) there should be files tmm/tmm_python_wrapper.py and tmm/tmm_c_wrapper.f90. The function c_calc_k should be defined in tmm_c_wrapper.f90, and you can see how it works there.

Unfortunately I'm not sure why this is failing. When I download the tmm.txt file and rename it as tmm.f90 locally, then run the python code you provided, it works on my macOS and Ubuntu test environments. I get the following output:

[ 5388602.54624668 -8300723.05328158  5388602.54624668 -8300723.05328158
  5388602.54624668 -8300723.05328158]

To debug, I would start by using:

code = fmodpy.fimport("tmm.f90", verbose=True)

Look at the output of that, see if there are any statements that look like errors.

Next, I would cd into the tmm directory that was generated by fmodpy and open the tmm_python_wrapper.py file. What happens when you execute that file? Does it compile a .so file every time you run it? That could mean that it is failing to compile a functioning .so file for some reason (related to the compiler / compilation settings).

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Thanks for the detailed info, I will be looking into it!

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Hi, the error for this particular file does not longer exist when i compile it. I am not sure why I got it in the first place.
All i did in this 3 days was to restart my PC and reinstall your module, I am glad this works now :)

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