Invalid Await

crates/ty_python_semantic/resources/lint_docs/invalid-await.md

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What it does

Checks for await being used with types that are not Awaitable.

Why is this bad?

Such expressions will lead to TypeError being raised at runtime.

Examples

python

import asyncio


class InvalidAwait:
    def __await__(self) -> int:
        return 5


async def main() -> None:
    await InvalidAwait()  # error: [invalid-await]
    await 42  # error: [invalid-await]


asyncio.run(main())