Taken MR comments into account:
* `and` is considered a binary operator, thus put at the beginning of the line when splitting a line,
* same for `+`,
* same for `.` (different reasons).
Les deux seuls fichiers touchés sont `bda/views.py` et
`bda/algorithm.py` d'après un
`grep -r '/' . | grep '\.py' | grep -v '^Binary' à la racine du projet.
