FFFF ENH: Allow genfromtxt to unpack structured arrays by AndrewEckart · Pull Request #16650 · numpy/numpy · GitHub
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ENH: Allow genfromtxt to unpack structured arrays #16650

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Merged
merged 13 commits into from
Sep 11, 2020
Merged

ENH: Allow genfromtxt to unpack structured arrays #16650

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ENH: Allow genfromtxt to unpack structured arrays
AndrewEckart Jun 20, 2020
798fa60
MAINT: add comment
mattip Jul 14, 2020
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comment
AndrewEckart Jul 14, 2020
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Apply suggestions from code review
seberg Jul 15, 2020
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Merge branch 'fix/4341' of github.com:AndrewEckart/numpy into fix/4341
AndrewEckart Jul 15, 2020
ee35155
Add release note
AndrewEckart Jul 15, 2020
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Remove byteorder from dtypes in tests
AndrewEckart Jul 29, 2020
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Fix release note
AndrewEckart Aug 3, 2020
f9e245c
Must specify dtype=None for automatic unpacking
AndrewEckart Aug 3, 2020
596c1bf
Merge branch 'master' into fix/4341
AndrewEckart Aug 10, 2020
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DOC: minor touchups to release note.
rossbar Aug 10, 2020
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Feedback from code review
AndrewEckart Aug 10, 2020
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Merge branch 'fix/4341' of github.com:AndrewEckart/numpy into fix/4341
AndrewEckart Aug 10, 2020
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Must specify dtype=None for automatic unpacking
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@AndrewEckart
AndrewEckart committed Aug 3, 2020
commit f9e245cf73e2737d0043ff5f6cf1081b4eaf594f
5 changes: 3 additions & 2 deletions doc/release/upcoming_changes/16650.compatibility.rst
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@@ -1,10 +1,11 @@
`np.genfromtxt` now correctly unpacks structured arrays
-------------------------------------------------------------------------
Previously, `genfromtxt` failed to unpack if it was called with ``unpack=True``
and a structured datatype was inferred or passed to the ``dtype`` argument.
and a structured datatype was passed to the ``dtype`` argument
(or ``dtype=None`` was passed and a structured datatype was inferred).

Structured arrays will now correctly unpack into a list of arrays,
one for each column::

>>> np.genfromtxt(StringIO("21 58.0 \n 35 72.0"), unpack=True)
>>> np.genfromtxt(StringIO("21 58.0 \n 35 72.0"), dtype=None, unpack=True)
[array([21, 35]), array([58., 72.])]
0