ModuleNotFoundError: No module named 'serial'

[se6astian-pi]

training succeeds, at the end I get
ModuleNotFoundError: No module named 'serial'
File "/usr/axiom/script/axiom_rf_sel.py", line 7, in
removing the "import serial" from line 7 seems to fix it, not sure why it was there in the first place?
same for /usr/axiom/script/axiom_pic_jtag_pcie.py it seems

it is included but not actually used
there is a similar issue with bitarray in /usr/axiom/script/axiom_pic_jtag_pcie.py
but there it is used and needs to be installed via pacman
pacman -S python-bitarray