The problem was in scipy, #840264
Now it is fixed.
- Bug#841600: pyfai: FTBFS: Tests failures Lucas Nussbaum
- Bug#841600: marked as done (pyfai: FTBFS: ... Debian Bug Tracking System
- Bug#841600: pyfai: FTBFS: Tests failures PICCA Frederic-Emmanuel
The problem was in scipy, #840264
Now it is fixed.