Hey,
fixing a corner case indexing regression in 1.8, I noticed/fixed
accidentally this behavior of returning a scalar when indexing a 0-d
array with fields (see also [1]):
arr = np.array((1,), dtype=[('a', 'f8')])
arr['a'] # Returns an array
arr[['a']] # Currently returns a *scalar*
I think no field access should try to convert 0-d arrays to scalars, and
it was probably just an oversight. However, if anyone thinks there is
even the slightest chance that this creates bugs in production code, we
certainly should not change it in a bug-fix only release.
Or am I missing something and the old behavior was actually intended?
- Sebastian
[1] https://github.com/numpy/numpy/issues/4109
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