diff options
Diffstat (limited to 'numpy')
| -rw-r--r-- | numpy/ma/core.py | 6 | ||||
| -rw-r--r-- | numpy/ma/tests/test_core.py | 10 |
2 files changed, 16 insertions, 0 deletions
diff --git a/numpy/ma/core.py b/numpy/ma/core.py index fb28fa8e5..c0dda6f31 100644 --- a/numpy/ma/core.py +++ b/numpy/ma/core.py @@ -6317,6 +6317,12 @@ class MaskedConstant(MaskedArray): # precedent for this with `np.bool_` scalars. return self + def __copy__(self): + return self + + def __deepcopy__(self, memo): + return self + def __setattr__(self, attr, value): if not self.__has_singleton(): # allow the singleton to be initialized diff --git a/numpy/ma/tests/test_core.py b/numpy/ma/tests/test_core.py index 63703f6cd..4c7440aab 100644 --- a/numpy/ma/tests/test_core.py +++ b/numpy/ma/tests/test_core.py @@ -4826,6 +4826,16 @@ class TestMaskedConstant(object): np.ma.masked.copy() is np.ma.masked, np.True_.copy() is np.True_) + def test__copy(self): + import copy + assert_( + copy.copy(np.ma.masked) is np.ma.masked) + + def test_deepcopy(self): + import copy + assert_( + copy.deepcopy(np.ma.masked) is np.ma.masked) + def test_immutable(self): orig = np.ma.masked assert_raises(np.ma.core.MaskError, operator.setitem, orig, (), 1) |