所以我在启动Python中的多个进程时遇到了问题。我将使用一个进程运行下载,另一个进程显示进度条。现在,我正在研究进度条进程,但我一直在收到这个奇怪的错误。我认为这与事实做我使用的是Mac OS X的多处理Python核心基础错误
这里是我的代码:
import Tkinter as tk
from multiprocessing import Process
class Application(tk.Frame):
def __init__(self, master = None):
tk.Frame.__init__(self,master)
self.grid()
self.setup()
def setup(self):
self.label = tk.Label(self, text = "Progress Bar")
self.label.grid()
self.canvas = tk.Canvas(self, cursor = 'arrow', height = 400, width = 400)
self.canvas.grid()
self.rectangle = self.canvas.create_rectangle(0,0,399,20,fill = 'white')
self.canvas.grid()
def appStart():
app = Application()
app.master.title("Progress Bar")
app.mainloop()
p = Process(target = appStart)
p.start()
这里是错误:
The process has forked and you cannot use this CoreFoundation functionality safely. You MUST exec().
Break on __THE_PROCESS_HAS_FORKED_AND_YOU_CANNOT_USE_THIS_COREFOUNDATION_FUNCTIONALITY___YOU_MUST_EXEC__() to debug.
所以呀,怎么我能解决这个问题吗?我真的很想使用多处理库,因为它非常简单易用。对于并发性,我也是一个初学者,所以对于我来说底层的API会非常复杂。我需要使用多个进程,因为Python不能同时运行多个线程。请帮忙。