Allow to narrow down choices in an Enum field

closeio / cleancat

Validation and serialization library for Python designed to be used with JSON REST frameworks

MIT License

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Closed wojcikstefan closed 6 years ago

wojcikstefan commented 6 years ago

This PR:

Allows you to only consider a subset of a specific enum's options valid.
Installs enum34 in tests so that we can test the Enum field in Python v2.
Is backward-compatible, unless someone initialized Enum() using positional arguments (highly unlikely).