8000 ENH: Use `__array_ufunc__ = None` in polynomial convenience classes. by charris · Pull Request #9015 · numpy/numpy · GitHub
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ENH: Use __array_ufunc__ = None in polynomial convenience classes. #9015

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Apr 29, 2017
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ENH: Use __array_ufunc__ = None in polynomial convenience classes. #9015

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ENH: Use `__array_ufunc__ = None` in polynomial convenience classes.
charris Mar 31, 2017
21b14aa
DOC: Document that the polynomial classes now opt out of ufuncs.
charris Apr 28, 2017
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DOC: Document that the polynomial classes now opt out of ufuncs.
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@charris
charris committed Apr 28, 2017
commit 21b14aad410ad3b40e1609ec2cbed553e3f18c47
7 changes: 7 additions & 0 deletions doc/release/1.13.0-notes.rst
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Expand Up @@ -415,3 +415,10 @@ greater than ``mmap.ALLOCATIONGRANULARITY``.
Previously, ``np.real`` and ``np.imag`` used to return array objects when
provided a scalar input, which was inconsistent with other functions like
``np.angle`` and ``np.conj``.

The polynomial convenience classes cannot be passed to ufuncs
-------------------------------------------------------------
The ABCPolyBase class, from which the convenience classes are derived, sets
``__array_ufun__ = None`` in order of opt out of ufuncs. If a polynomial
convenience class instance is passed as an argument to a ufunc, a ``TypeError``
will now be raised.
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