litestar-org/polyfactory
Enhancement: Support non-mutable Mapping containers
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#726 ouverte le 3 juil. 2025
enhancementgood first issue
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Description
Summary
Currently handle_collection_type only supports MutableMappings, could support for non-mutable Mappings also be added? I am personally trying to use this alongside the frozendict pypi package.
Basic Example
You could make a factory for e.g.
@dataclass
class Shop(frozen=True)
prices: MyImmutableMapping[str, int]
where MyImmutableMapping is a subclass of Mapping. Currently this will raise
NotImplementedError: Unsupported container type: <class 'MyImmutableMapping'>
Drawbacks and Impact
Very few drawbacks in my opinion: changes should be small and isolated and adds functionality many users could benefit from.
Unresolved questions
No response