I'm importing a module to another module to make a treeview in tkinter but it is showing me a error NameError: name 'treeview' is not defined

Question

I am trying to import a function add() from module tab.py to a module treeimport.py to create a treeview widget after taking data from user in module treeimport.py and insert that data in the treeview widget im module tab.py after a button ADD is clicked having function add() but it is showing me a error NameError: name 'treeview' is not defined

The module tab.py is below

from tkinter import ttk
from tkinter import *
window = Tk()

def tree():
    col = ('Website','Email','Password','Security check')
    treeview = ttk.Treeview(window, height=5, show='headings', columns=col)

    treeview.column('Website', width=100, anchor=CENTER)
    treeview.column('Email', width=100, anchor=CENTER)
    treeview.column('Password', width=100, anchor=CENTER)
    treeview.column('Security check', width=100, anchor=CENTER)

    treeview.heading('Website', text='Website')
    treeview.heading('Email', text='Email')
    treeview.heading('Password', text='Password')
    treeview.heading('Security check', text='Security check')

    treeview.pack(side=TOP, fill=BOTH)

def add():
    treeview.insert('', 'end',values=(website.get(), email.get(), passwd.get(), 'YES'))

window.mainloop() 

And treeimport module is below:

from tkinter import ttk 
from tkinter import *
from tab import *

ask = Tk()
website = Entry(ask)
email = Entry(ask)
passwd = Entry(ask)

website.pack()
email.pack()
passwd.pack()

rec = Button(ask,text='ADD', command = add())
rec.pack()

ask.mainloop()

Please help me with this problem.

Answer 1

Here, I have actually reduced the use of importing an external file and compiled it all to a single code, and it works fine. I have used some.txt make sure to create such an empty file before trying this code out.

from tkinter import ttk 
from tkinter import *

ask = Tk()

def tree():
    window = Toplevel(ask)
    col = ('Website','Email','Password','Security check')
    treeview = ttk.Treeview(window, height=5, show='headings', columns=col)

    treeview.column('Website', width=100, anchor=CENTER)
    treeview.column('Email', width=100, anchor=CENTER)
    treeview.column('Password', width=100, anchor=CENTER)
    treeview.column('Security check', width=100, anchor=CENTER)

    treeview.heading('Website', text='Website')
    treeview.heading('Email', text='Email')
    treeview.heading('Password', text='Password')
    treeview.heading('Security check', text='Security check')

    treeview.pack(side=TOP, fill=BOTH)    
    
    #opening the list
    open_file = open('some.txt','r')
    lines = open_file.readlines()
    
    #populating the list from the file
    for line in lines:
        treeview.insert('', 'end',values=line)

def store():
    #creating a list of data to be stored in file
    vals = [website.get()+' ',email.get()+' ',passwd.get()+' ','Yes\n']
    lines = open('some.txt','a')
    lines.writelines(vals)
    
    #clearing the entry boxes
    website.delete(0,END)
    email.delete(0,END)
    passwd.delete(0,END)
    
    #setting focus back on first window
    website.focus_force()

website = Entry(ask)
email = Entry(ask)
passwd = Entry(ask)

website.pack()
email.pack()
passwd.pack()

rec = Button(ask,text='ADD', command=store)
rec.pack()

view = Button(ask,text='VIEW',command=tree)
view.pack()

ask.mainloop()

some.txt

www.google.com something@gmail.com stackoverflow Yes 

Do let me know if any errors or doubts.

Cheers