[lang-ref] ( concat_in_place ) ( python )

def test_concat_in_place():
    # extend
    items1 = ['A', 'B', 'C']
    items2 = ['D', 'E']

    items1.extend(items2)

    assert items1 == ['A', 'B', 'C', 'D', 'E']

def test_concat_in_place_alternative():
    # +=
    items1 = ['A', 'B', 'C']
    items2 = ['D', 'E']

    items1 += items2

    assert items1 == ['A', 'B', 'C', 'D', 'E']