It would kind of cool use your code, but...so many issues!

[schlogl2017]

The code it is hard to read!
And have problems with version issues!
You even make a requirement list of the programs versions!

Paulo.

[mtinti]

I'm running it without issues in colab, just start your notebook with:
!pip3 install fastai==1.0.61
!pip install biopython
clone the repo and you ready to go!

also...
import sys
sys.path.append('path to cloned repo')