diff options
Diffstat (limited to 'numpy/lib/arraysetops.py')
| -rw-r--r-- | numpy/lib/arraysetops.py | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/numpy/lib/arraysetops.py b/numpy/lib/arraysetops.py index c30ad534b..cf45e181b 100644 --- a/numpy/lib/arraysetops.py +++ b/numpy/lib/arraysetops.py @@ -562,10 +562,14 @@ def in1d(ar1, ar2, assume_unique=False, invert=False): if invert: mask = np.ones(len(ar1), dtype=bool) for a in ar2: + # convert object arrays to bool + # cannot use np.not_equal until 'S' and 'U' have loops mask &= (ar1 != a).astype(bool) else: mask = np.zeros(len(ar1), dtype=bool) for a in ar2: + # convert object arrays to bool + # cannot use np.equal until 'S' and 'U' have loops mask |= (ar1 == a).astype(bool) return mask |