alterations4

Author: gusthavoMFS

pandas/core/tools/datetimes.py

@@ -1150,7 +1150,7 @@ def to_datetime(
             if isinstance(format, (list, tuple)):
                 format = np.array(format, dtype="O")
                 # return list
-                return_list = [convert_listlike(arg[i],str(fmt)) for i,fmt in enumerate(format)]
+                return_list = [Timestamp(convert_listlike([argc[i]],fmt)[0]) for i,fmt in enumerate(format)]
                 # transformed object in DatetimeIndex
                 result = DatetimeIndex(return_list)
             else:

pandas/tests/tools/test_to_datetime.py

@@ -1086,7 +1086,7 @@ def test_to_datetime_today_now_unicode_bytes(self, arg):
     def test_to_datetime_now_with_format(self, format, expected_ds, string, attribute):
         # https://github.com/pandas-dev/pandas/issues/50359
         result = to_datetime(["2020-01-03 00:00:00Z", string], format=format, utc=True)
-        expected = DatetimeIndex(d
+        expected = DatetimeIndex(
             [expected_ds, getattr(Timestamp, attribute)()], dtype="datetime64[ns, UTC]"
         )
         assert (expected - result).max().total_seconds() < 1
@@ -1095,13 +1095,13 @@ def test_to_datetime_now_with_format(self, format, expected_ds, string, attribut
     def test_to_datetime_where_formart_is_list(self):
         # https://github.com/pandas-dev/pandas/issues/55226
         data = ['2023-10-12','2023-10-13 14:30:00']
-        all_formats = ['%Y-m-%d','%Y-%m-%d %H:%M:%S']
+        all_formats = ['%Y-%m-%d','%Y-%m-%d %H:%M:%S']
         result = to_datetime(data,format=all_formats)
-        expect = DatetimeIndex(
-            [to_datetime(data[0],all_formats[0]),to_datetime(data[1],all_formats[1])], dtype="datetime64[ns]"
+        expected = DatetimeIndex(
+            ['2023-10-12 00:00:00','2023-10-13 14:30:00'], dtype="datetime64[ns]",
+            freq=None
         )
-        
-        tm.assert_index_equal(result,expect)
+        tm.assert_index_equal(result,expected)
 
 
     @pytest.mark.parametrize(