code sample for pandas-dev#47545

Author: simonjayhawkins

bisect/47545.py

@@ -0,0 +1,17 @@
+# BUG: datetime index name droped after date_range selection #47545
+
+import pandas as pd
+
+print(pd.__version__)
+
+df = pd.DataFrame(
+    {
+        "date": [pd.to_datetime(d) for d in ["20220101", "20220102", "20220103"]],
+        "value": [1, 2, 3],
+    }
+).set_index("date")
+
+result = df.loc[pd.date_range("20220101", "20220102"), :]
+print(result)
+
+assert result.index.name == "date"