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-rw-r--r--numpy/ma/core.py6
1 files changed, 6 insertions, 0 deletions
diff --git a/numpy/ma/core.py b/numpy/ma/core.py
index a57cdf5c1..a6f252067 100644
--- a/numpy/ma/core.py
+++ b/numpy/ma/core.py
@@ -5718,6 +5718,12 @@ class MaskedConstant(MaskedArray):
def flatten(self):
return masked_array([self._data], dtype=float, mask=[True])
+ def __reduce__(self):
+ """Override of MaskedArray's __reduce__.
+ """
+ return (self.__class__, ())
+
+
masked = masked_singleton = MaskedConstant()