# MRI-NUFFT fails to detect available backends

[mcencini]

Hi all, thanks for this awesome package! I have noticed that the package seems to fail to correctly detect available backends. In my case, I only installed torchkbnufft backend, but when I run the tests I obtain this:

backends: avail select stacked: True True stacked-cufinufft: True True bart: False False cufinufft: True True finufft: REF REF gpunufft: False False pynfft: True True numpy: True True pynufft-cpu: False False sigpy: False False tensorflow: False False torchkbnufft-cpu: True True torchkbnufft-gpu: True True

I would expect pynfft and cufinufft / finufft to return False (and, since finufft is the reference backend, to display an error). Thanks!

Best wishes, Matteo