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ENH: Set mask=None equivalent to mask=False in np.ma.array() #17212

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ENH: Set mask=None equivalent to mask=False in np.ma.array() #17212

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3 changes: 2 additions & 1 deletion numpy/ma/core.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2844,7 +2844,8 @@ def __new__(cls, data=None, mask=nomask, dtype=None, copy=False,
# Process mask.
# Type of the mask
mdtype = make_mask_descr(_data.dtype)

# Set mask as False if it is None for performance improvement.
if mask is None: mask = False
if mask is nomask:
# Case 1. : no mask in input.
# Erase the current mask ?
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