[Python] Strange sqlalchemy error with '|' operator

So I'm creating a query with sqlalchemy and I don't know why i get this error. Basicaly my code looks like this :

def post(self, semestr):
nazwa_kierunku = 'stac. I st., kier. informatyka'
nr_semestru = 2

nr_grupy_cw = 3
nr_grupy_ps = 5
nr_grupy_l = 7
nr_grupy_w = 1
nr_grupy_p = 2
nr_grupy_s = 5
nr_grupy_j = 5
nr_grupy_wf = 1

prowadzacy_tytul_subq = model.Prowadzacy.query.join(model.Tytul).subquery()

query = (
model.Grupa.query.join(prowadzacy_tytul_subq,
model.Studia,
model.Przedmiot,
model.Sala)
.filter(model.Studia.nazwa == nazwa_kierunku)
.filter(model.Grupa.nr_semestru == nr_semestru)
.filter((model.Grupa.rodzaj == 'Ćw', model.Grupa.nr_grupy == nr_grupy_cw) | (model.Grupa.rodzaj == 'Ps' , model.Grupa.nr_grupy == nr_grupy_ps))


)
print(query)
result = schema.GrupaSchema().dump(query, many=True)

return jsonify(result)


When I mouse over the '|' operator i get "Class'(bool,bool)' does not define 'or', so the '|' operator cannot be used on its instances"

During compilation I get "sqlalchemy.exc.ArgumentError: SQL expression object or string expected, got object of type instead" What I'm doing wrong?

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