The following code hangs without doing anything in Python 3.2.2 in Linux:

import tkinter
from multiprocessing import Process

def f():
    root = tkinter.Tk()
    label = tkinter.Label(root)
    label.pack()
    root.mainloop()

p = Process(target=f)
p.start()

The only information I have found about this problem is issue 5527, in which it is noted that the problem is with tkinter being imported before the process is forked, and that it can be fixed by importing tkinter inside the function f, and that the problem occurs in Linux but not Solaris.

What exactly is causing this problem, and is it a bug? Is there any workaround other than to import tkinter locally everywhere I need it (which isn't very Pythonic)? Do any other modules have similar issues with multiprocessing?

python tkinter multiprocessing
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