MAINT: Removed 'if' block which served no purpose in core.py and remo…

…ved '_linalgRealType(t)' function from linalg.py
numpy · mattip · Jul 9, 2021 · May 26, 2021 · May 26, 2021 · May 26, 2021
commit beacb394e94a517d1c84f8a50f9e18f3bf11ced5
diff --git a/numpy/linalg/linalg.py b/numpy/linalg/linalg.py
@@ -128,10 +128,6 @@ def _realType(t, default=double):
 def _complexType(t, default=cdouble):
     return _complex_types_map.get(t, default)
 
-def _linalgRealType(t):
-    """Cast the type t to either double or cdouble."""
-    return double
-
 def _commonType(*arrays):
     # in lite version, use higher precision (always double or cdouble)
     result_type = single

diff --git a/numpy/ma/core.py b/numpy/ma/core.py
@@ -2839,13 +2839,6 @@ def __new__(cls, data=None, mask=nomask, dtype=None, copy=False,
             _data = ndarray.view(_data, type(data))
         else:
             _data = ndarray.view(_data, cls)
-        # Backwards compatibility w/ numpy.core.ma.
-        if hasattr(data, '_mask') and not isinstance(data, ndarray):
-            _data._mask = data._mask
-            # FIXME: should we set `_data._sharedmask = True`? 
-            # Previously this set `_sharedmask = True`, but
-            # that didn't actually do anything as the variable was unused!
-
         # Process mask.
         # Type of the mask
         mdtype = make_mask_descr(_data.dtype)