calling a python script on button click using python and tkinter

Question

I have a python script which has the functionality of sending an email to a user. I executed this script and it is working fine. In another python script I have only a button, so when I click on this button I want the other python script which sends a email to be executed.I have written the following code:

#!/usr/bin/python
import sys
import os
import Tkinter
import tkMessageBox
top=Tkinter.Tk()

def helloCallBack():
    os.system('SendEmail.py')

B=Tkinter.Button(top,text="hello",command= helloCallBack)
B.pack()
top.mainloop()

I get the following error when I click on the button:

sh: 1:SendEmail.py:not found.

Could you let me know what is the reason for this error and how it can be resolved.Thanks.

Answer 1

I was able to figure out a way to call another python script on button click:

instead of using os.system('SendEmail.py') we need to use os.system('python SendEmail.py')

Answer 2

import sys
import os
from tkinter import *

window=Tk()

window.title("Running Python Script")
window.geometry('550x200')

def run():
    os.system('opencv_video.py')

btn = Button(window, text="Click Me", bg="black", fg="white",command=run)
btn.grid(column=0, row=0)

window.mainloop()

Answer 3

If your SendEmail.py is in the same location, use os.system('SendEmail.py'). If it's in a different location, use os.system('python SendEmail.py').