diff options
Diffstat (limited to 'numpy/ma/core.py')
| -rw-r--r-- | numpy/ma/core.py | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/numpy/ma/core.py b/numpy/ma/core.py index 37836a0a0..b01656ec9 100644 --- a/numpy/ma/core.py +++ b/numpy/ma/core.py @@ -3279,12 +3279,13 @@ class MaskedArray(ndarray): # We want to remove the unshare logic from this place in the # future. Note that _sharedmask has lots of false positives. if not self._isfield: + notthree = getattr(sys, 'getrefcount', False) and (sys.getrefcount(_mask) != 3) if self._sharedmask and not ( # If no one else holds a reference (we have two # references (_mask and self._mask) -- add one for # getrefcount) and the array owns its own data # copying the mask should do nothing. - (sys.getrefcount(_mask) == 3) and _mask.flags.owndata): + (not notthree) and _mask.flags.owndata): # 2016.01.15 -- v1.11.0 warnings.warn( "setting an item on a masked array which has a shared " |