stdout to tkinter GUI

Question

How can I redirect stdout data to a tkinter Text widget?

Answer 1

This is an old question, but I found a solution which I would like to share with the community. My example pipes a listing of the working directory to a Tk window. I am using Python 3.6 on Windows 8. I ran the code through both Jupyter Notebook and Eclipse using Pydev.

import os
from tkinter import *
from subprocess import Popen, PIPE
root = Tk()
text = Text(root)
text.pack()

def ls_proc():
    return Popen(['ls'], stdout=PIPE)

with ls_proc() as p:
    if p.stdout:
        for line in p.stdout:
            text.insert(END, line)
    if p.stderr:
        for line in p.stderr:
            text.insert(END, line)

root.mainloop()