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float128(0).item() returns numpy.float128 #8547

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gerritholl opened this issue Jan 30, 2017 · 1 comment
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float128(0).item() returns numpy.float128 #8547

gerritholl opened this issue Jan 30, 2017 · 1 comment
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00 - Bug 54 - Needs decision component: numpy.dtype

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@gerritholl
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float128 types cannot be represented in native Python. The conversion method .item() returns a numpy.float128, contrary to documentation and to the behaviour for all other dtypes:

In [307]: type(float128(0).item())
Out[307]: numpy.float128

Not sure what the right approach here is; for the other dtypes that cannot be represented natively, I don't like the approach either.
@gerritholl gerritholl mentioned this issue Jan 30, 2017
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@eric-wieser eric-wieser mentioned this issue Oct 18, 2017
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@eric-wieser eric-wieser mentioned this issue Feb 18, 2019
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@seberg
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seberg commented May 20, 2020

I think this is the best approach since there is no safe converesion, and you could use float(...) otherwise. Yes, its a bit strange, but I think raising an error is worse...

(We discussed this briefly on the triage meeting)

@seberg seberg closed this as completed May 20, 2020
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