Table.from_table_rows: Ensure arrays are not views

biolab · Apr 16, 2021 · 4849ad9 · 4849ad9
1 parent c6d92ea
commit 4849ad9
Showing 1 changed file with 10 additions and 4 deletions.
diff --git a/Orange/data/table.py b/Orange/data/table.py
@@ -660,17 +660,23 @@ def from_table_rows(cls, source, row_indices):
         :return: a new table
         :rtype: Orange.data.Table
         """
+        def get_rows(a):
+            a = a[row_indices]
+            if isinstance(row_indices, slice) or row_indices is ...:
+                a = a.copy()
+            return a
+
         self = cls()
         self.domain = source.domain
         with self.unlocked():
-            self.X = source.X[row_indices]
+            self.X = get_rows(source.X)
             if self.X.ndim == 1:
                 self.X = self.X.reshape(-1, len(self.domain.attributes))
-            self.Y = source._Y[row_indices]
-            self.metas = source.metas[row_indices]
+            self.Y = get_rows(source._Y)
+            self.metas = get_rows(source.metas)
             if self.metas.ndim == 1:
                 self.metas = self.metas.reshape(-1, len(self.domain.metas))
-            self.W = source.W[row_indices]
+            self.W = get_rows(source.W)
             self.name = getattr(source, 'name', '')
             self.ids = np.array(source.ids[row_indices])
             self.attributes = getattr(source, 'attributes', {})