workaround for circular dependency

Author: Vahid Tavanashad

mkl_fft/interfaces/numpy_fft.py

@@ -24,8 +24,15 @@
 # OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-# Added for completing the namespaces
-from numpy.fft import fftfreq, fftshift, ifftshift, rfftfreq
+import numpy as np
+
+# helper functions are added for completing the namespaces
+if np.lib.NumpyVersion(np.__version__) < "2.0.0":
+    # intentionally import from the helper module to avoid circular dependency
+    # when patching numpy fft module with mkl_fft
+    from numpy.fft.helper import fftfreq, fftshift, ifftshift, rfftfreq
+else:
+    from numpy.fft._helper import fftfreq, fftshift, ifftshift, rfftfreq
 
 # pylint: disable=no-name-in-module
 from ._numpy_fft import (