Python 3.9 and 3.10 have adopted PEPs 584 (1) and 604 (2) respectively. These use the pipe operator, and this might very well collide with our use of the pipe operator for creating quantities.
We will need to find a solution for this relatively soon.
1: https://www.python.org/dev/peps/pep-0584/
2: https://www.python.org/dev/peps/pep-0604/