You will need some Fortran compile to execute all the scripts, you can get GNU Fortran Compiler using :
sudo apt-get install gfortran
and you can fortran compile the source code using:
gfortran finite_elements.f95 -o finite_elements
You can run a calculation inserting your parameters into the main.py file.
After the creation, the mesh will be showed, initialy it will show the strucutre before the structure displacement, as the Figure 01 shows. when the calculations are finished a new mesh will appear, this time it will ilustrate how was the structure before and how is it after the force has been apllied