Set fill value to a tuple of nan

mgmarino · mgmarino · commit 3733dcceb735 · 2020-04-06T16:02:13.000+02:00
- Older versions of numpy otherwise throw an error:
```
TypeError: a bytes-like object is required, not 'float'
```
diff --git a/pandas/core/arrays/datetimes.py b/pandas/core/arrays/datetimes.py
@@ -1272,7 +1272,9 @@ def isocalendar(self):
 
         sarray = fields.build_isocalendar_sarray(self.asi8)
         iso_calendar_array = self._maybe_mask_results(
-            sarray, fill_value=np.nan, convert=[(n, "<f8") for n in sarray.dtype.names]
+            sarray,
+            fill_value=(np.nan, np.nan, np.nan),
+            convert=[(n, "<f8") for n in sarray.dtype.names],
         )
         return DataFrame(iso_calendar_array, columns=["year", "week", "day"])
 

Original file line number	Diff line number	Diff line change
`@@ -1272,7 +1272,9 @@ def isocalendar(self):`
`1272`	`1272`
`1273`	`1273`	`sarray = fields.build_isocalendar_sarray(self.asi8)`
`1274`	`1274`	`iso_calendar_array = self._maybe_mask_results(`
`1275`		`- sarray, fill_value=np.nan, convert=[(n, "<f8") for n in sarray.dtype.names]`
	`1275`	`+ sarray,`
	`1276`	`+ fill_value=(np.nan, np.nan, np.nan),`
	`1277`	`+ convert=[(n, "<f8") for n in sarray.dtype.names],`
`1276`	`1278`	`)`
`1277`	`1279`	`return DataFrame(iso_calendar_array, columns=["year", "week", "day"])`
`1278`	`1280`