pyinstaller EXE为子进程打开2个控制台窗口

Question

我制作了一个YouTube视频下载程序，它使用cmd在新的控制台窗口中运行youtube-dl。当我单独运行程序时它运行得很好，但是当我冻结它并点击下载按钮时，它会打开两个控制台窗口并仅在其中一个程序中运行程序。另一个只是坐在那里直到程序结束。

这完全是我的代码。温柔我仍然很新。

from tkinter import *
from tkinter import filedialog
import os


class MyApp:
    def __init__(self, parent):
        # -----------Main window--------------------
        self.mainwindow = Frame(parent)
        self.mainwindow.pack(expand=YES, fill=BOTH)

        # -----------Frames--------------------
        self.topFrame = Frame(self.mainwindow, bg="gray20")
        self.topFrame.pack(side=TOP, expand=YES, fill=BOTH)

        self.midFrame = Frame(self.mainwindow, bg="gray20")
        self.midFrame.pack(side=TOP, expand=YES, fill=BOTH)

        self.URLframe = Frame(self.midFrame, bg="gray20")
        self.URLframe.pack(side=TOP, expand=YES, fill=BOTH)

        self.folderframe = Frame(self.midFrame, bg="gray20")
        self.folderframe.pack(side=TOP, expand=YES, fill=BOTH)

        self.bottomFrame = Frame(self.mainwindow, bg="gray20")
        self.bottomFrame.pack(side=BOTTOM, expand=YES, fill=BOTH)

        # -----------Top label--------------------
        self.Toplabel = Label(self.topFrame,
                              text="YouTube Hoarder", font=("Courier", 44),
                              fg="blue2", bg="gray20",
                              height=3, width=50,
                              )
        self.Toplabel.pack()

        # -----------URL entry--------------------
        self.URL_entry = Entry(self.URLframe, width=90)
        self.URL_entry.focus_force()
        self.URL_entry.pack(side=RIGHT, padx=15)

        self.URL_text = Label(self.URLframe,
                              text="Gimme URL",
                              height=1, width=10,
                              bg="light blue"
                              )
        self.URL_text.pack(side=LEFT, pady=6)

        # -----------folder entry--------------------
        self.DirVar = StringVar(self.mainwindow)

        self.folder_entry = Entry(self.folderframe, width=90,
                                  textvariable=self.DirVar)
        self.folder_entry.pack(side=RIGHT, padx=15)

        self.folder_text = Label(self.folderframe,
                                 text="Gimme folder",
                                 height=1, width=10,
                                 bg="light blue"
                                 )
        self.folder_text.pack(side=LEFT, pady=6)

        # -----------buttons--------------------
        self.Download_button = Button(self.bottomFrame,
                                      text="Download",
                                      width=20, height=4,
                                      bg="light green",
                                      command=self.download_process
                                      )
        self.Download_button.pack(side=RIGHT)

        self.find_folder_button = Button(self.midFrame,
                                         text="Folder Directory",
                                         width=12, height=2,
                                         bg="light green",
                                         command=self.print_message2
                                         )
        self.find_folder_button.pack(side=RIGHT, padx=5)

        # -----------options menu--------------------
        self.Type_list = ["best", "mp3", "mp4"]
        self.Variable = StringVar(self.mainwindow)
        self.Variable.set(self.Type_list[0])
        self.file_option = OptionMenu(self.bottomFrame, self.Variable,
                                      *self.Type_list)
        self.file_option.pack(side=LEFT)

    def print_message2(self):
        self.dir_opt = options = {}
        options['initialdir'] = 'Downloads'

        self.DirName = filedialog.askdirectory(**self.dir_opt)
        self.DirVar.set(self.DirName)

    def download_process(self):
        self.givenURL = self.URL_entry.get()
        self.givenFT = self.Variable.get()
        os.system('start /wait cmd /c youtube-dl --output '
                  '"{0}\%(title)s.%(ext)s" -i -f '
                  '{1}/best --yes-playlist "{2}"'.format(
                  self.DirName, self.givenFT, self.givenURL))

root = Tk()
root.resizable(width=False, height=False)
root.geometry("{}x{}".format(700 , 400))
root.title("YouTube Hoarder")
root.iconbitmap(r'C:\Users\tjhall\Downloads\LT3WE.ico')
myapp = MyApp(root)
root.mainloop()