DOC: Clarify that numpy.printoptions applies only to ndarray, not scalars

riku-sakamoto · riku-sakamoto · commit 3714b74660a7 · 2025-07-26T21:19:30.000+09:00
As discussed in #29409, numpy.printoptions applies only to `numpy.ndarray`, not to scalars. A Note describing this behavior has been added to the docstring.
diff --git a/numpy/_core/arrayprint.py b/numpy/_core/arrayprint.py
@@ -410,6 +410,10 @@ def printoptions(*args, **kwargs):
     --------
     set_printoptions, get_printoptions
 
+    Notes
+    -----
+    These print options apply only to NumPy ndarrays, not to scalars.
+
     """
     token = _set_printoptions(*args, **kwargs)
 
