Fastapi: [QUESTION] Fastapi & TestClient

[Sanchoyzer]

Python 3.7
Fastapi the latest
Ubuntu 18.04

I had searching an answer in google and in manual of FastAPI, but there is no result

Example, file structure:

app
|  main.py
|  tests
|    test_simple.py

main.py

app = FastAPI()
app.include_router(...)
app.add_middleware(...)

test_simple.py (full)

from fastapi.testclient import TestClient

from app.main import app

client = TestClient(app)

exception:

ImportError while importing test module '.../app/tests/test_simple.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
app/tests/test_simple.py:17: in <module>
    from fastapi.testclient import TestClient
venv/lib/python3.7/site-packages/fastapi/__init__.py:7: in <module>
    from .applications import FastAPI
venv/lib/python3.7/site-packages/fastapi/applications.py:3: in <module>
    from fastapi import routing
venv/lib/python3.7/site-packages/fastapi/routing.py:7: in <module>
    from fastapi.dependencies.utils import (
venv/lib/python3.7/site-packages/fastapi/dependencies/utils.py:20: in <module>
    from fastapi.concurrency import (
venv/lib/python3.7/site-packages/fastapi/concurrency.py:5: in <module>
    from starlette.concurrency import run_until_first_complete  # noqa
E   ImportError: cannot import name 'run_until_first_complete' from 'starlette.concurrency' (.../venv/lib/python3.7/site-packages/starlette/concurrency.py)

I think that problem is not a 'valid Python names'. It seems that in manual https://fastapi.tiangolo.com/tutorial/testing/ files main.py and test.py on the same level. But it isn't product solushion, is it?

[NMisko]

Hi @Sanchoyzer how did you fix this?

[sagrawal-idrc]

@NMisko upgrading starlette to 0.13.2 might be required.

[NMisko]

Yes, that was it. Thank you.

[tiangolo]

Thanks for the discussion here everyone! And thanks @Sanchoyzer for closing the issue. :+1: