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Diffstat (limited to 'numpy/ma/core.py')
| -rw-r--r-- | numpy/ma/core.py | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/numpy/ma/core.py b/numpy/ma/core.py index 8efe45eed..78e7b27a7 100644 --- a/numpy/ma/core.py +++ b/numpy/ma/core.py @@ -1613,6 +1613,11 @@ def make_mask(m, copy=False, shrink=True, dtype=MaskType): # Make sure the input dtype is valid. dtype = make_mask_descr(dtype) + + # legacy boolean special case: "existence of fields implies true" + if isinstance(m, ndarray) and m.dtype.fields and dtype == np.bool_: + return np.ones(m.shape, dtype=dtype) + # Fill the mask in case there are missing data; turn it into an ndarray. result = np.array(filled(m, True), copy=copy, dtype=dtype, subok=True) # Bas les masques ! |