Improve error message if attempting to construct multidimensional series (#50651)

* Update construction.py

* Update test_constructors.py

* Update test_constructors.py

* Update construction.py

* Update test_constructors.py

Author: jonashaag

pandas/core/construction.py

@@ -666,7 +666,9 @@ def _sanitize_ndim(
         if isinstance(data, np.ndarray):
             if allow_2d:
                 return result
-            raise ValueError("Data must be 1-dimensional")
+            raise ValueError(
+                f"Data must be 1-dimensional, got ndarray of shape {data.shape} instead"
+            )
         if is_object_dtype(dtype) and isinstance(dtype, ExtensionDtype):
             # i.e. PandasDtype("O")
 

pandas/tests/series/test_constructors.py

@@ -172,7 +172,10 @@ def test_constructor(self, datetime_series):
         assert not Series().index._is_all_dates
 
         # exception raised is of type ValueError GH35744
-        with pytest.raises(ValueError, match="Data must be 1-dimensional"):
+        with pytest.raises(
+            ValueError,
+            match=r"Data must be 1-dimensional, got ndarray of shape \(3, 3\) instead",
+        ):
             Series(np.random.randn(3, 3), index=np.arange(3))
 
         mixed.name = "Series"