await-outside-async (PLE1142)

Derived from the Pylint linter.

What it does

Checks for uses of await outside async functions.

Using await outside an async function is a syntax error.

import asyncio


def foo():
    await asyncio.sleep(1)

Use instead:

import asyncio


async def foo():
    await asyncio.sleep(1)

As an exception, await is allowed at the top level of a Jupyter notebook (see: autoawait).