gevent link exception and value

gevent_exception_value.py

import gevent as g
from functools import partial
import traceback

def fn(*args, **kwargs):
    print("ARGS: ", args)
    print("KWARGS: ", kwargs)
    g.sleep(3)
    return 150

def fnWithException(*args, **kwargs):
    print("ARGS: ", args)
    print("KWARGS: ", kwargs)
    g.sleep(3)
    raise ValueError


def on_error(fut):
    print("something happened.")
    try:
        fut.get()
    except Exception as e:
        print("ERROR HAPPEEND: ", str(e) + traceback.format_exc())

def on_value(fut):
    print("SUCCESS: ", fut.value)

if __name__ == "__main__":
    args1 = ["job1", "5", "6"]
    f1 = g.spawn(fn, args1)
    f1.link_exception(on_error)
    f1.link_value(on_value)



    args2 = ["job2", "7", "11"]

    f2 = g.spawn(fnWithException, *args2)
    f2.link_exception(on_error)
    f2.link_value(on_value)


    g.joinall([f1,f2], raise_error=False)
    
    print("here...")