Python tkinter在GUI上显示CLI结果

Question

我有2个python文件。一个是helloworld.py，第二个是main.py.在main.py中有按钮。当我点击那个按钮时，我想把helloworld.py的结果打印到文本框中。

helloworld.py

打印（ “世界你好”）

所以我想打印招呼到main.py文本字符串世界

from tkinter import * 
import os 
root= Tk() 
root.title("My First GUI") 
root.geometry("800x200") 
frame1=Frame(root) 
frame1.grid() 

def helloCallBack(): 
    result = os.system('python helloworld.py') 
    if result==0: 
     print("OK") 
     text1.insert(END,result)   
    else: 
     print("File Not Found") 

label1 = Label(frame1, text = "Here is a label!") 
label1.grid() 

button1 = Button(frame1,text="Click Here" , foreground="blue",command= helloCallBack) 
button1.grid() 

text1 = Text(frame1, width = 35, height = 5,borderwidth=2) 
text1.grid() 

radiobutton1 = Radiobutton(frame1, text= "C Programming", value=0) 
radiobutton1.grid() 
radiobutton2 =Radiobutton(frame1, text= "Python Programming") 
radiobutton2.grid() 
root.mainloop() 

Answer 1

使用subprocess.check_output而不是os.system：

from tkinter import * 
from subprocess import check_output, CalledProcessError 

root = Tk() 

text1 = Text(root) 
text1.pack() 

def command(): 
    try: 
     res = check_output(['python', 'helloworld.py']) 
     text1.insert(END, res.decode()) 
    except CalledProcessError: 
     print("File not found") 

Button(root, text="Hello", command=command).pack() 

root.mainloop()