The Unicode normalization feature requires Python 3.8 because the
unicodedata.is_normalized() function only appears there. If I find
another way to check if a string is normalized without normalizing
it first I will drop the requirements back down to Python 3.6.
See: https://docs.python.org/3/library/unicodedata.html
The Pipfile knows it was created with Python 3.8, yet we're running
with multiple Python versions on Travis. I'm curious if would work
better to use pip to install dependencies instead of pipenv in this
case.