Consider implementing BaseList / BaseDict / BaseSet
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- Dominant language
- Python
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- 462
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Description
Use case first: There is a use case (in pyface actually) where we would want to validate the length of a list dynamically, but the `minlen` and `maxlen` on `List` are static.
This prompted a more general question: should there be a stable and extensible trait type base class for `TraitList`, `TraitDict` and `TraitSet` that projects can subclass and extend from.
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