python - 在实例方法上声明 @dramatiq.actor

Question

我有一个实例方法，我想作为演员/工人同时运行。跑步时process_request.send(service, url)，我得到TypeError: Object of type 'Foo' is not JSON serializable

services.py

class Foo:
    def __init__(self, name):
        self.name = name
    
    def get_data(self, url):
        return requests.get(url)

class Bar:
    def __init__(self, name):
        self.name = name
    
    def get_data(self, url):
        return requests.get(url)

tasks.py

import dramatiq

@dramatiq.actor
def process_request(cls_instance, url):
    data = cls_instance(url)
    save_data(data, cls_instance.name) 

main.py

import services
from tasks import process_request

if __name__ == '__main__':
    if args[0] == 'foo':
        service = services.Foo('foo')
    else:
        service = services.Bar('bar')

    urls = [...]
    for url in urls:
        process_request.send(service, url)