Using other .py scipts within a script?

[Thekid]

I'm currently working on a tkinter project and the code is getting pretty long. What I would like to do is separate some of it into .py scripts and then import them into the main script. I'm not sure how to get a separate script to work like this. My example is a tkinter window that has many toplevel windows that have a lot of code in them. I'd like to keep those separate if possible. Something like this:

from Tkinter import *
import OtherScript

def NewWindow():
    win = Toplevel()
    Run OtherScript.py

root = Tk()
root.geometry('300x300')

Button(root, text='Click Me', command=NewWindow).pack(side=BOTTOM)

mainloop()

Instead of having all of the code from OtherScript in here, I'd like to import it and have it run after the root window button is clicked.

At the bottom of 'OtherScript.py ' I've added:

if __name__ == "__main__":
    import sys

[Thekid]

After playing around with this, I think I've figured it out:

#OtherScript.py

from Tkinter import *

root = Tk()
root.geometry('300x300')

Button(root, text='Exit', command=root.destroy).pack()

if __name__ == "__main__":
    mainloop()

Then the root window with OtherScript imported:

from Tkinter import *

def NewWindow():
    import tknw

root = Tk()

root.geometry('300x300')

Button(root, text='Click Me', command=NewWindow).pack(side=BOTTOM)

mainloop()

This seems to work but if it shouldn't be done this way, please let me know. Thanks

[bvdet]

I think all imports should be at the top of the main application file. See Style Guide for Python Code and look for the section on imports.

[Thekid]

bvdet, that's what I initially tried but as soon as I'd run the root window, the imported one would open at the same time.

from Tkinter import *
import OtherScript


root = Tk()
 
root.geometry('300x300')
 
Button(root, text='Click Me', command=None).pack(side=BOTTOM)
 
mainloop()

Doing that ^ will result in the root window AND the OtherScript running simultaneously.

[bvdet]

Encapsulate the code in the imported modules in functions or classes and call the functions or instantiate the classes in the main script.

A code example of a script to import:

# module1.py
import Tkinter

class LabelWidget(Tkinter.Entry):
    def __init__(self, master, x, y, text):
        self.text = Tkinter.StringVar(master)

class EntryWidget(Tkinter.Entry):
    def __init__(self, master, x, y, v):
        Tkinter.Entry.__init__(self, master=master)

class EntryGrid(Frame):
    ''' SDS/2 Frame with Tkinter.Entry widgets arranged in columns and rows.'''
    def __init__(self, parent, obj, cols, rows, pattern, anchorPattVar):
        pass

class EmbedDialog(object):
    
    def __init__(self, model):
        pass

if __name__ == "__main__":
    class Model:
        def __init__(self, **kw):
            for key in kw:
                setattr(self, key, kw[key])
    x = EmbedDialog(Model(x=12, y=24))

The code following the if statement does not execute when the module is imported, but is executed when the file is run as a script.

The main script:

import module1
class Model:
    def __init__(self, **kw):
        for key in kw:
            setattr(self, key, kw[key])
dlg = module1.EmbedDialog(Model(x=12, y=24))