fastapi 0.26.0

on Python PyPI

Separate error handling for validation errors.

• This will allow developers to customize the exception handlers.
• Document better how to handle exceptions and use error handlers.
• Include RequestValidationError and WebSocketRequestValidationError (this last one will be useful once encode/starlette#527 or equivalent is merged).
• New documentation about exceptions handlers:
  • Install custom exception handlers.
  • Override the default exception handlers.
  • Re-use FastAPI's exception handlers.
• PR #273.

Fix support for paths in path parameters without needing explicit Path(...).

• PR #256.
• Documented in PR #272 by @wshayes.
• New documentation at: Path Parameters containing paths.

Update docs for testing FastAPI. Include using POST, sending JSON, testing headers, etc. New documentation: Testing. PR #271.

Fix type declaration of response_model to allow generic Python types as List[Model]. Mainly to fix mypy for users. PR #266.