conftest.py 文件源码

def default_event_loop(request=None, config=None):
    if request is not None:
        config = request.config
    loop = config.getoption("--loop")
    if loop == 'uvloop':
        import uvloop
        asyncio.set_event_loop_policy(uvloop.EventLoopPolicy())
    else:
        loop = 'asyncio'
    return loop