Using Variables with a tkinter button

Question

I am making a program which a user can create his own tkinter buttons. However I have a problem with the custom name. It creates a name by storing it in a variable however it completely ignores the variable even when it is a direct variable. E.g: variable = "TEXT HERE"

Folder = open(fold2, "r")
Title = Folder.readline(1)
FolderBNam = Button(self, anchor=tk.W, text=Title, command= lambda: self.controller.show_frame(FoldButton1))
FolderBNam.place(height=55, width=75,x=25,y=100)
Folder.close

I have searched for answers of course and even tried to use Lamdba which didn't go so good.

@AdamSmith I am trying to store the name in a txt file. So if the user restarts the program his buttons will remain there. — Treeschapter
– Treeschapter, Commented Dec 31, 2015 at 18:52

Adam Smith · Accepted Answer · 2015-12-31 18:56:40Z

2

The only immediate problem I see is file.readline shouldn't be called with an argument. That should be giving you one character rather than one line (equivalent to Folder.read(1). Check my edited code below, also edited to look more like Python:

import tkinter as tk
from tkinter import ttk

with open(fold2) as f:
    title = f.readline()  # no argument
f_bnam = ttk.Button(self, anchor=tk.W, text=title, command=...)
f_bnam.place(...)

answered Dec 31, 2015 at 18:56

Adam Smith

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4 Comments

Treeschapter Over a year ago

Thanks! So if i change put a 2. E.G: f.readline(2) Will it still work?

Adam Smith Over a year ago

@MarsOne um, what do you think the number is doing?

Adam Smith Over a year ago

@MarsOne it will if you do readline(), but if you do readline(n) it doesn't guarantee that it will read the whole line, because it will only take up to n characters of text.

Adam Smith Over a year ago

See the docs and read carefully about the size argument

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