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12 changes: 12 additions & 0 deletions pandas/tests/dtypes/test_dtypes.py
Original file line number Diff line number Diff line change
Expand Up @@ -1140,3 +1140,15 @@ def test_compare_complex_dtypes():

with pytest.raises(TypeError, match=msg):
df.lt(df.astype(object))


def test_multi_column_dtype_assignment():
# GH #27583
df = pd.DataFrame({"a": [0.0], "b": 0.0})
expected = pd.DataFrame({"a": [0], "b": 0})

df[["a", "b"]] = 0
tm.assert_frame_equal(df, expected)

df["b"] = 0
tm.assert_frame_equal(df, expected)