According to my research, i have found an answer and link that may help you out
Firstly i would like you to try this code, this code takes the command "ipconfig" and displays the result in a new window, you can modify this code:-
import tkinter
import os
def get_info(arg):
x = Tkinter.StringVar()
x = tfield.get("linestart", "lineend") # gives an error 'bad text index "linestart"'
print (x)
root = tkinter.Tk()
tfield = tkinter.Text(root)
tfield.pack()
for line in os.popen("ipconfig", 'r'):
tfield.insert("end", line)
tfield.bind("<Return>", get_info)
root.mainloop()
And i have found a similar question on quora take a look at this