share dict between processes

问题

I spawn a seperate process to handle my cloud services. I spawnb it like this:

CldProc = Process(target=CloudRun)
CldProc.start()

and am wondering if I can have a shared dictionary between that CloudProc and my current main process?

EDIT: Alternatively I am thinking to use pickle to dump my data into a file from the process and load it back, this requires me to use join() to wait for the process to complete and exit.

2nd EDIT So, I now have my dict declared like mac_dict={} and then I fill it in my subprocess and want to access it in my main process. Now I just tried this:

>>> dict = dict()
>>> dict['A'] = 1
>>> print dict
{'A': 1}

So how does Python know that dict() should be called from Managers? Is there any examples I can follow?

回答1:

Got it, to simplify, I did it like this:

from multiprocessing import Process, Manager

def myf(myd):
    myd[1] = "HELLO WORLD!"

def proc(d):
    myf(d)

m=Manager()
locdict=m.dict()
locdict[2] = "HI BUDDY!"

p = Process(target=proc, args=(locdict,))

p.start()
p.join()
print locdict

回答2:

Take a look at multiprocessing.Manager and the Manager.dict() method in particular. They may serve your needs.

来源：https://stackoverflow.com/questions/17224277/share-dict-between-processes