Method sub

Lib/test/test_asyncio/test_tasks.py:2564–2567

()

        cvar = contextvars.ContextVar('cvar', default='nope')

        async def sub():
            await asyncio.sleep(0.01)
            self.assertEqual(cvar.get(), 'nope')
            cvar.set('something else')

        async def main():
            self.assertEqual(cvar.get(), 'nope')