API: Disallow strings in logical ufuncs #21024
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This restores pre 1.22 NumPy behaviour for strings passed into logical ufuncs. Logical ufuncs should be able to cast inputs to booleans without modifying their results. Thus they do this now (in NumPy 1.22+). The problem is that string to bool casts are very strange in NumPy currently. This should be reverted/removed once string to bool casts are well defined. But until then, it seems more reasonable to just reject strings. Closes numpygh-20898
seberg
commented
Feb 9, 2022
| @@ -2134,7 +2134,7 @@ def test_logical_ufuncs_mixed_object_signatures(self, ufunc, signature): | |||
| [np.logical_and, np.logical_or, np.logical_xor]) | |||
| def test_logical_ufuncs_support_anything(self, ufunc): | |||
| # The logical ufuncs support even input that can't be promoted: | |||
| a = np.array('1') | |||
| a = np.array(b'1', dtype="V3") | |||
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Void tests the same thing and defines the bool cast somewhat reasonably (anything that is not all NULL)
Co-authored-by: Ross Barnowski <rossbar@berkeley.edu>
|
Thanks Sebastian for the PR and Ross for the review! 😄 |
charris
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* API: Disallow strings in logical ufuncs This restores pre 1.22 NumPy behaviour for strings passed into logical ufuncs. Logical ufuncs should be able to cast inputs to booleans without modifying their results. Thus they do this now (in NumPy 1.22+). The problem is that string to bool casts are very strange in NumPy currently. This should be reverted/removed once string to bool casts are well defined. But until then, it seems more reasonable to just reject strings. Closes numpygh-20898 Co-authored-by: Ross Barnowski <rossbar@berkeley.edu>
charris
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09 - Backport-Candidate
melissawm
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Apr 12, 2022
* API: Disallow strings in logical ufuncs This restores pre 1.22 NumPy behaviour for strings passed into logical ufuncs. Logical ufuncs should be able to cast inputs to booleans without modifying their results. Thus they do this now (in NumPy 1.22+). The problem is that string to bool casts are very strange in NumPy currently. This should be reverted/removed once string to bool casts are well defined. But until then, it seems more reasonable to just reject strings. Closes numpygh-20898 Co-authored-by: Ross Barnowski <rossbar@berkeley.edu>
seberg
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Apr 24, 2022
* API: Disallow strings in logical ufuncs This restores pre 1.22 NumPy behaviour for strings passed into logical ufuncs. Logical ufuncs should be able to cast inputs to booleans without modifying their results. Thus they do this now (in NumPy 1.22+). The problem is that string to bool casts are very strange in NumPy currently. This should be reverted/removed once string to bool casts are well defined. But until then, it seems more reasonable to just reject strings. Closes numpygh-20898 Co-authored-by: Ross Barnowski <rossbar@berkeley.edu>
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This restores pre 1.22 NumPy behaviour for strings passed into logical
ufuncs. Logical ufuncs should be able to cast inputs to booleans
without modifying their results.
Thus they do this now (in NumPy 1.22+). The problem is that string to
bool casts are very strange in NumPy currently.
This should be reverted/removed once string to bool casts are well
defined. But until then, it seems more reasonable to just reject
strings.
Closes gh-20898