Bash script to run Python Tkinter GUI

Question

I am trying to write a Bash script so that I can run my program on a double click. The program uses tkinter and the GUI is the only thing I need to see. My bat file is the following:

python BudgetGUI.py &

This runs the code and successfully prints any print statements I have throughout my code but it never opens up the GUI. It simply runs through and closes immediately.

How can I modify the bash script to run the GUI?

Thanks in advance!

Edit Solutions for both mac and pc would be great, though at the moment I am on PC. I am working in Python3.

Novel · Accepted Answer · 2017-07-06 18:18:35Z

1

You need to add a call to mainloop(). I can't say for sure without seeing your code, but probably you need to add root.mainloop() to the bottom.

You don't need a bash or bat file. For your mac, just add a shebang and make the file executable. For Windows, add a shebang and associate the file with py.exe.

If you want to suppress the command line from popping up along with the GUI, rename your file with a .pyw extension.

answered Jul 6, 2017 at 18:18

Novel

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10 Comments

Joey B Over a year ago

So...one problem I have is that my code doesn't use any classes. I am still pretty fuzzy on object oriented programming so I sort of just forced it work without using classes. If I run the script from IDLE, the GUI and shell pop up fine. Any workarounds to this or did I dig myself into a hole?

Novel Over a year ago

classes have nothing to do with this

Joey B Over a year ago

Oh. I guess I was confused. I don't have "root.mainloop()" in my code yet it still runs. If I simply added that to the end of my script, how could I implement what you are suggesting?

Novel Over a year ago

IDLE cheats and adds that line for you (sorta). Outside of IDLE you need to add it yourself.

Novel Over a year ago

As I said, you need to associate the file with py.exe. Currently it's associated with IDLE. I think you can set that in the "open with" dialog.

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PythonProgrammi · Accepted Answer · 2017-07-07 16:03:21Z

0

Make the window made with tkinter stay out of IDLE*

if you have

root = Tk()

at the end put

root.mainloop()

if you have another name for that like:

window1 = Tk()

then, at the end put

window1.mainloop()

and so for any name you gave to the istance of Tk()

A little example

import tkinter as tk

class Window:
    root = tk.Tk()
    label = tk.Label(root, text = "Ciao").pack()


app = Window()
app.root.mainloop()

Python 2

The code above is for python 3. For python 2 you just need to change the first line (Tkinter with T, not t)

import Tkinter as tk

edited Jul 7, 2017 at 16:03

answered Jul 7, 2017 at 15:45

PythonProgrammi

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