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topic: asyncioAsyncio-related issuesAsyncio-related issues
Description
The following code fails to typecheck with latest mypy but works just fine at runtime.
from typing import Any
import asyncio
class MyCoro:
def __init__(self):
async def coro() -> None:
print("coro works!")
self.coro = coro()
def send(self, value: Any) -> None:
return self.coro.send(value)
def throw(self, exc: BaseException) -> None:
return self.coro.throw(exc)
def close(self) -> None:
return self.coro.close()
def __await__(self) -> Any:
return self.coro.__await__()
async def main() -> None:
coro = MyCoro()
await asyncio.create_task(coro)
asyncio.run(main())
Error:
cpython on ๎ isolate-decimal [?] via ๐ v3.11.2
โฏ mypy main.py
main.py:25: error: Argument 1 to "create_task" has incompatible type "MyCoro"; expected "Union[Generator[Any, None, <nothing>], Coroutine[Any, Any, <nothing>]]" [arg-type]
Found 1 error in 1 file (checked 1 source file)
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topic: asyncioAsyncio-related issuesAsyncio-related issues