Entweder:
BuildRequires: %{python_module Cython0}
besser:
BuildRequires: %{python_module Cython >= 0.29 with %python-Cython < 3}
Entweder:
BuildRequires: %{python_module Cython0}
besser:
BuildRequires: %{python_module Cython >= 0.29 with %python-Cython < 3}