Fixed #38419 - BUG: set_index screws up the dtypes on empty DataFrames

jordi-crespo · jordi-crespo · commit ed8811aaf02a · 2020-12-13T02:12:50.000+01:00
diff --git a/pandas/tests/frame/methods/test_set_index.py b/pandas/tests/frame/methods/test_set_index.py
@@ -54,7 +54,7 @@ def test_set_index_empty_dataframe(self):
         )
 
         expected = df.set_index(["a", "b"])
-        tm.assert_frame_equal(df.reset_index(drop = True), expected.reset_index())
+        tm.assert_frame_equal(df.reset_index(drop=True), expected.reset_index())
         assert df.empty is True
 
     def test_set_index_multiindexcolumns(self):

Original file line number	Diff line number	Diff line change
`@@ -54,7 +54,7 @@ def test_set_index_empty_dataframe(self):`
`54`	`54`	`)`
`55`	`55`
`56`	`56`	`expected = df.set_index(["a", "b"])`
`57`		`- tm.assert_frame_equal(df.reset_index(drop = True), expected.reset_index())`
	`57`	`+ tm.assert_frame_equal(df.reset_index(drop=True), expected.reset_index())`
`58`	`58`	`assert df.empty is True`
`59`	`59`
`60`	`60`	`def test_set_index_multiindexcolumns(self):`