Add columns explicitly when creating DataFrame

mgmarino · mgmarino · commit ba939c21e066 · 2020-04-06T16:02:12.000+02:00
diff --git a/pandas/core/arrays/datetimes.py b/pandas/core/arrays/datetimes.py
@@ -1274,7 +1274,7 @@ def isocalendar(self):
         iso_calendar_array = self._maybe_mask_results(
             sarray, fill_value=np.nan, convert=[(n, "<f8") for n in sarray.dtype.names]
         )
-        return DataFrame(iso_calendar_array)
+        return DataFrame(iso_calendar_array, columns=["year", "week", "day"])
 
     year = _field_accessor(
         "year",

Original file line number	Diff line number	Diff line change
`@@ -1274,7 +1274,7 @@ def isocalendar(self):`
`1274`	`1274`	`iso_calendar_array = self._maybe_mask_results(`
`1275`	`1275`	`sarray, fill_value=np.nan, convert=[(n, "<f8") for n in sarray.dtype.names]`
`1276`	`1276`	`)`
`1277`		`- return DataFrame(iso_calendar_array)`
	`1277`	`+ return DataFrame(iso_calendar_array, columns=["year", "week", "day"])`
`1278`	`1278`
`1279`	`1279`	`year = _field_accessor(`
`1280`	`1280`	`"year",`