Potentially soon for Flask, https://github.com/pallets/flask/pull/3412 https://github.com/pallets/flask/pull/3412. Also see Quart, https://gitlab.com/pgjones/qu

Potentially soon for Flask, https://github.com/pallets/flask/pull/3412 https://github.com/pallets/flask/pull/3412. Also see Quart, https://gitlab.com/pgjones/quart https://gitlab.com/pgjones/quart