Hi, I have upgraded python-datrie in Git[1] to latest upstream version (0.8). It shows the same issue - so I admit I have no better clue than reporting the issue upstream which I'd rather leave to the official Uploader of the package.
BTW, we probably should expect build issues with Python 3.8[2] Kind regards Andreas. [1] https://salsa.debian.org/python-team/modules/python-datrie [2] https://github.com/pytries/datrie/issues/73 -- http://fam-tille.de