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Dict Unpacking in Python

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118 points _ZeD_ | 1 comments | 08 Jul 25 16:05 UTC | HN request time: 0.209s | source
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qwertox ◴[12 Jul 25 06:31 UTC] No.44539829[source]▶
This confuses me a bit

  dct = {'a': [1, 2, 3]}
  {'a': [1, *rest]} = dct
  print(rest)  # [2, 3]
Does this mean that i can use?

  dct = {'a': [1, 2, 3]}
  {'b': [4, *rest]} = dct
  print(rest)  # [2, 3]
and more explicit

  dct = {'a': [1, 2, 3]}
  {'_': [_, *rest]} = dct
  print(rest)  # [2, 3]
replies(2): >>44540719 #>>44540890 #
1. qexat ◴[12 Jul 25 09:46 UTC] No.44540719[source]▶
None of the last two LHSes will match `dct`, so you'll get a runtime error.