python3-freezegun 1.1.0-1 (amd64 binary) in ubuntu kinetic

 FreezeGun allows easy mocking of the datetime module by freezing the return
 value of the methods datetime.datetime.now(), datetime.datetime.utcnow(),
 datetime.date.today(), and time.time() to a fixed point in time. Use it
 in unit testing to make the tests deterministic and time-independent.