After installing Salome meca, Code Aster 14.4.0 was installed.
The source code was downloaded.
Then packages were added
$sudo apt-get install gfortran g++ python-dev python-numpy liblapack-dev libblas-dev tcl tk zlib1g-dev bison flex checkinstall openmpi-bin libx11-dev cmake grace gettext swig
In case of xUbuntu 20.04, python3.8 is standard and it is cause of a trouble at building.(refere to this). Therefore we installed python3.6 and related packages as follows
$sudo apt-get install python3.6 python3.6-dev libboost1.67-all-dev
To get Numpy, visit to here and installed python-numpy_1.16.2-1ubuntu1_amd64.deb.
Then symbolic links was modified that python3 indicated python3.6.
$cd /usr/bin $sudo rm python3 $sudo ln -s python3.6 python3 $sudo rm python3-config $sudo ln -s python3.6-config python3-config
Unpack the source code and move to the folder. Then start building.
$python3 setup.py install --prefix=/opt/aster
In my case, the build finished without any trouble.
After building, python3 was returned to python3.8.
$cd /usr/bin $sudo rm python3 $sudo ln-s python3.8 python3 $sudo rm python3-config $sudo ln -s python3.8-config python3-config
For confirmation, forma01a was conducted.
$/opt/aster/bin/as_run --vers=14.4 --test forma01a
The result was next.
I wish for it to help you.