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from multiprocessing import Process
import tkinter as tk
import urllib3
import requests


class MyWindow:
    def __init__(self, master):
        self.colors = {"green": "#22cf00", "bg":"#1a1a1a", "fg":"#3c3c3c"}
        fm = tk.Frame(master)
        fm.pack()
        self.entry = tk.Entry(fm)
        self.entry.pack(pady=20)
        self.label = tk.Label(fm, text="Waiting for you!", background=self.colors["bg"], foreground=self.colors["fg"])
        self.label.pack(pady=10)
        self.btn = tk.Button(fm, text="click me", command=self.func)
        self.btn.pack(pady=10)

    # Funktion download file from http
    def func(self):
        print("Hello", arg)
        url = 'http://www.tgcomes.es/CONIL-VEJER-BARB-ZAHARA.pdf'     # Testfile 
        requests.get(url, stream=True)

        # flash label
    def flash(self, arg):
        print("Hello", arg)
        self.label.config(text=arg)
        #bg = self.label.cget("background")
        #fg = self.label.cget("foreground")
        #self.label.configure(background=fg, foreground=bg)
        #root.after(1000, self.flash)


    def multiproc(self):  
        self.p = Process(target=self.func, args=("World!",))
        self.q = Process(target=self.flash, args=("Universe!",))
        self.p.start()
        self.q.start()
        self.p.join()
        self.q.join()
        self.label.configure(text="Finish")


if __name__ == "__main__":
    root = tk.Tk()
    myapp = MyWindow(root)
    root.title("test")
    root.geometry("200x200")
    root.mainloop()