Fix test failure if no device parameter - #459
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Signed-off-by: Pradyot Ranjan <99216956+pradyotRanjan@users.noreply.github.com>
ev-br
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Aug 20, 2026
Signed-off-by: Pradyot Ranjan <99216956+pradyotRanjan@users.noreply.github.com>
Signed-off-by: Pradyot Ranjan <99216956+pradyotRanjan@users.noreply.github.com>
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I tried testing this PR with MLX since that's the only library which supports DLPack but does not have the |
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betatim
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Aug 21, 2026
betatim
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Co-authored-by: Tim Head <betatim@gmail.com>
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@ev-br Care for another look? |
Signed-off-by: Pradyot Ranjan <99216956+pradyotRanjan@users.noreply.github.com>
ev-br
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Aug 26, 2026
| try: | ||
| has_device = "device" in inspect.signature(xp.empty).parameters | ||
| except (TypeError, ValueError): | ||
| has_device = False |
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Ugh, this is getting messy. IIUC this whole pattern is meant to account for
- MLX not reacting to
inspect.signature(an exception or a non-informative*args, **kwargssignature, depending on thenanobindversion) - CuPy genuinely missing the
deviceargument - PyTorch raising a ValueError in
inspect.signature(xp.empty)
However, I don't think this works correctly with e.g. pytorch: inspect.signature raises but the device argument is accepted:
In [10]: torch.empty(3, device="meta")
Out[10]: tensor(..., device='meta', size=(3,))
Signed-off-by: Pradyot Ranjan <99216956+pradyotRanjan@users.noreply.github.com>
Signed-off-by: Pradyot Ranjan <99216956+pradyotRanjan@users.noreply.github.com>
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Fixes #458