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lang-py
{**x, **y}method. However, theitemsapproach can be made workable by convertingdictitemstolistlikedict(list(x.items()), list(y.items())).{**{(0, 1):2}}->{(0, 1): 2}dict(**y)is for creating dictionaries for readability purposes". I would argue that it's also to make the code less error prone, becausedict(a=17, b=19, a=23)would fail with "SyntaxError: keyword argument repeated", while{"a": 17, "b": 19, "a": 23}would not (with 23 overwriting 17) and your accidental double key"a"would've gone unnoticed. Of course, if you want to allow double keys (I cannot see why, though), then{...}syntax is the way to go. Many linters, of course, warn of double keys.