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`MissingDependencyError` if class declared in a module with `main` part #178

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belegnar opened this issue Sep 9, 2023 · 0 comments

belegnar commented Sep 9, 2023 •

edited

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Hello

# app.py
import aiohttp.web
import punq

from project import routes


class A:
    pass


if __name__ == "__main__":
    container = punq.Container()
    container.register(A, instance=A())

    app = aiohttp.web.Application()
    app["container"] = container
    routes.setup_routes(app)
    aiohttp.web.run_app(app)

# routes.py
import aiohttp.web

from project import view


def setup_routes(app: aiohttp.web.Application):
    app.router.add_route("GET", "/route", view.handler)

# view.py
import aiohttp.web
import punq

from project import app


async def handler(r: aiohttp.web.Request):
    c: punq.Container = r.app["container"]
    c.resolve(app.A)
    return aiohttp.web.Response()

Request to /route results in MissingDependencyError because it exists as __main__.A as I understand

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