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Walruses aren't allowed in places where they should be #820

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Walruses aren't allowed in places where they should be#820
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compatibilityresolved
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v3.1.0

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@kg583
kg583
opened on Jan 17, 2024

The following walruses raise parser errors, despite being valid Python:

[1, 2, 3][i := 0]
sum(i := 0 for _ in [1, 2, 3])

Note that the former only happens in a __getitem__ call; a literal like [i := 0] is parsed correctly.

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  1. evhub
    added
    compatibility
    on Jan 18, 2024
  2. evhub
    added this to the v3.1.0 milestone on Jan 18, 2024
  3. evhub
    added
    resolved
    on Jan 18, 2024
  4. evhub
    added a commit that references this issue on Jan 18, 2024

    Fix walrus in subscripts

    17ff2a3

  5. evhub commented on Jan 18, 2024

    @evhub
    evhub
    on Jan 18, 2024
    Owner

    Ah, looks like I missed one of the places where 3.10 added support for named expressions. Simple workaround is to add parentheses as in <=3.9, but this should now work with --target 3.10+ as of coconut-develop>=3.0.4-post_dev15.

  6. evhub
    closed this as completedon Jan 18, 2024
  7. evhub
    added a commit that references this issue on Mar 2, 2024

    Release v3.1.0 (#829)

    41ac855
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