I’m working for a while with numba, but the types are still difficult for me. In the actual problem, I need lists. I know, that all works better with numpy arrays, but it is not evitable, that the array has different lengths, for example np.array([[1,2],[3,4,5]). Then, Numpy tells me to use dtype=ob…

hi @Hanni-ui for arrays of uneven lengths you should consider the library “awkward array” ( Documentation — Awkward Array documentation ). It allows you to work, inside and outside Numba, with arrays of uneven length while keeping as much as possible the numpy API. Hope it helps, Luk

I do not think it is possible to make NumPy arrays of lists in Numba.

[image] esc: I do not think it is possible to make NumPy arrays of lists in Numba. I guess he could work with a list of arrays instead.

Numba Array of Lists

Numba Support: How do I do ...?

ryanchien July 1, 2021, 1:08am 4

Hi - please see if How to pass a Numpy array of lists in @guvectorize function? applies.

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Numba Array of Lists

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