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ROADMAP.md

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Mypy Roadmap

The goal of the roadmap is to document areas the mypy core team is planning to work on in the future or is currently working on. PRs targeting these areas are very welcome, but please check first with a core team member that nobody else is working on the same thing.

Note: This doesn’t include everything that the core team will work on, and everything is subject to change.

  • Continue making error messages more useful and informative. (issues)

  • Refactor and simplify specific tricky parts of mypy internals, such as the conditional type binder and the semantic analyzer.

  • Use the redesigned semantic analyzer to support general recursive types (issue).

  • Infer signature of a single function using static analysis and integrate this functionality in mypy daemon.

  • Support user defined variadic generics (focus on the use cases needed for precise typing of decorators, see issue).

  • Dedicated support for NumPy and Python numeric stack (including integer generics/shape types, and a NumPy plugin, see issue).

  • Gradual improvements to mypyc compiler.

  • Invest some effort into systematically filling in missing stubs in typeshed, with focus on libraries heavily used at Dropbox. Help with typeshed transformation if needed.

  • Support selected IDE features and deeper editor integrations.