  PY Per has been known as a Z Cam star. Using VSOLJ, VSNET, AAVSO, ASAS-SN and
ZTF observations, I found that this object experienced faint states and
classified it to be a Z Cam + VY Scl star. Furthermore, the object changed the
outburst behavior since 2020 and it has been showing regularly recurring long,
bright outbursts with cycles of 110-160 d and short, faint outbursts between
them. The 2021 December--2022 January outburst particularly resembled a
superoutburst with a gradually fading plateau phase having a duration more than
25 d and two rebrightenings in the fading part. This object has a long orbital
period of 0.15468(5) d based on the TESS data and the previous radial-velocity
study. The existence of a superoutburst in a system with a long orbital period
would be unusual, but not unprecedented. Since the phenomenon may still be
ongoing, I draw attention to this object when it emerges from in the morning
sky after the solar conjunction.
