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trio-unneeded-sleep (TRIO110)#

Derived from the flake8-trio linter.

This rule is unstable and in preview. The --preview flag is required for use.

What it does#

Checks for the use of trio.sleep in a while loop.

Why is this bad?#

Instead of sleeping in a while loop, and waiting for a condition to become true, it's preferable to wait() on a trio.Event.

Example#

DONE = False


async def func():
    while not DONE:
        await trio.sleep(1)

Use instead: 

DONE = trio.Event()


async def func():
    await DONE.wait()