BUG FIX: None of the included dtypes present in df will raise ValueError with clear error message. (#61871)

Co-authored-by: Khemkaran <[email protected]>
Co-authored-by: Matthew Roeschke <[email protected]>

Author: 3 people

pandas/core/methods/describe.py

@@ -199,6 +199,9 @@ def _select_data(self) -> DataFrame:
                 include=self.include,
                 exclude=self.exclude,
             )
+            if len(data.columns) == 0:
+                msg = "No columns match the specified include or exclude data types"
+                raise ValueError(msg)
         return data
 
 

pandas/tests/frame/methods/test_describe.py

@@ -371,6 +371,13 @@ def test_describe_when_include_all_exclude_not_allowed(self, exclude):
         with pytest.raises(ValueError, match=msg):
             df.describe(include="all", exclude=exclude)
 
+    def test_describe_when_included_dtypes_not_present(self):
+        # GH#61863
+        df = DataFrame({"a": [1, 2, 3]})
+        msg = "No columns match the specified include or exclude data types"
+        with pytest.raises(ValueError, match=msg):
+            df.describe(include=["datetime"])
+
     def test_describe_with_duplicate_columns(self):
         df = DataFrame(
             [[1, 1, 1], [2, 2, 2], [3, 3, 3]],