Uploaded Test files

venv/Lib/site-packages/sklearn/utils/_mask.py

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+import numpy as np
+
+from . import is_scalar_nan
+from .fixes import _object_dtype_isnan
+
+
+def _get_mask(X, value_to_mask):
+    """Compute the boolean mask X == value_to_mask."""
+    if is_scalar_nan(value_to_mask):
+        if X.dtype.kind == "f":
+            return np.isnan(X)
+        elif X.dtype.kind in ("i", "u"):
+            # can't have NaNs in integer array.
+            return np.zeros(X.shape, dtype=bool)
+        else:
+            # np.isnan does not work on object dtypes.
+            return _object_dtype_isnan(X)
+    else:
+        return X == value_to_mask