I am working on an app using Tkinter and I have a small question.
For example, I have a label placed like this:
Label = Label(root, text="Hello").place(x=5, y=5)
Is there any way to hide the label when a button is pressed or when a function is called?
Any help will be appreciated
Thanks!
You should simply never chain .place() or any other geometry manager to the widget creator. It returns None.
lbl_name = Label(root, text="Hello")
lbl_name.place(x=5, y=5)
Now you can handle lbl_name as a label object. To hide it you can use:
lbl_name.place_forget()
Unfortunately, now its gone. Therefore, first save the place properties:
lbl_name = Label(root, text="Hello")
lbl_name.place(x=5, y=5)
lbl_name.saved = lbl_name.place_info()
You can now show it again with:
lbl_name.place(lbl_name.saved)
Note: You can print lbl_name.saved. It is a dictionary with all place-properties of the lbl_name Label object.
Related
I have an app that I would like to restyle using Customtkinter. I originally used Tkinter.
However I have a ListBox widget connected to a scrollbar and when I run the code it says that Customtkinter does not have CTkListBox as attribute, or that ListBox is not defined.
I have tried o look for the issue online and it seems that other people have asked to the person who created he module if he could add ListBox widgets (the link below).
https://github.com/TomSchimansky/CustomTkinter/issues/69
He did answer, but as I am new to coding, I do not feel very confident with the code attached.
I hope someone can help.
Thank you
This is my original code:
# create listbox and put it on screen
list1 = Listbox(window, height=6, width=35)
list1.grid(row=2, column=0, rowspan=6, columnspan=2)
#create scrollbar and put it on screen
sb1 = Scrollbar(window)
sb1.grid(row=2, column=2, rowspan=6)
# apply configure methods to make list and scrollbar work together
list1.configure(yscrollcommand = sb1.set)
sb1.configure(command=list1.yview)
# bind method takes two args: type of event and function.
list1.bind("<<ListboxSelect>>", get_selected_row)
Very new to Python here, and I'm trying to create a GUI app that returns a random recipe. Currently the print happens at the terminal, and I'd like it to print in the GUI instead.
from tkinter import *
import os
import random
root = tk.Tk()
def printRecipes():
recipes = [
"Tom Yum Soup",
"Carnitas",
"General Tso's Chicken"
]
print(random.choice(recipes))
canvas = tk.Canvas(root, height=600, width=700, bg="#A8D1BB")
canvas.pack()
magic = tk.Button(root, text="Print", padx=10, pady=5, fg="white", bg="black", command=printRecipes)
magic.pack()
root.mainloop()
This doesn't work, as most of you already know. I've read that I need to use a label or text for it, but the example I've found all involved static print statements like
label = Label(root,text="Recipe")
label.pack
To "print" a value to a GUI Window, a Label is used. .config() is a useful function. It is used to configure the provided widget.
Below magic.pack(), add this code. Notice that there is no text parameter. We will use that later.
label1=Label(root,pady=10,font=("arial",15))
label1.pack()
Next, in the function, where you had print(random.choice(recipes)), we will add:
label1.config(text=random.choice(recipes))
Notice that we used .config() and the text parameter. We configured the label, and added some text to it.
You need a tk.StringVar for this, i.e. a variable which you can change and the label can read from:
label_str = tk.StringVar(value="Some text")
label = tk.Label(root, textvariable=label_str)
Then, to update the value of this label and show it on the GUI:
label_str.set("New text")
label.update()
I really need to be able to delete a button onscreen into a label. All I need to do is remove the button, and put the label in place of it. However, I do not know how to remove buttons.
I am running Windows 10, Python 3.9.2.
Are you looking for something like this?:
import tkinter as tk
def remove_button():
global label
# Get the grid parameters passed in button when it was created
button_grid_info = button.grid_info()
button.grid_forget()
label = tk.Label(button_grid_info["in"], text="This is a Label widget")
# Put the label exactly where the button was:
label.grid(**button_grid_info)
root = tk.Tk()
button = tk.Button(root, text="Click me", command=remove_button)
button.grid(row=1, column=1)
root.mainloop()
grid_forget removes the widget without destroying it. If you used <button>.pack, use pack_forget. If you used <button>.place, use place_forget.
I'm completely new to Tkinter and I can't seem to make it work, even when copy/pasting codes from tutorials. More specifically, the following code for instance
Mafenetre = Tk()
Button(Mafenetre, text = 'quit.', command = Mafenetre.destroy).pack()
v = StringVar()
v.set("New Text!")
Label(Mafenetre, relief='solid', textvariable=v).pack()
Mafenetre.mainloop()
does not show New Text (but does show the 'quit' button). More generally, any use I've made (even copy/pasted code) of the textvariable attribute does not produce any text. What am I not understanding ?
Thank you in advance
Tkinter variables need a tk instance. So use:
v=StringVar(Mafenetre)
I am using tkinter to make a small user input sort of thing.
I couldn't find how to set focus to an Entry box when the script is run.
I.e. When the window opens, the first thing that automatically gets focus is the Entry box. set_focus() or focus() doesn't seem to work.
Here is my code:
root = Tk()
v = StringVar()
text = Entry(root,
textvariable=v).grid(column=0,row=0)
text.focus_set()
root.mainloop()
A geometry manager (.grid(), or .pack(), etc...) returns None. You must not use it on the same line as the assignment to a variable:
Your code was trying to call .focus_set() on a variable text whose value was set to None.
Further, the correct method to set the focus to a widget is focus_set(), not set_focus().
root = Tk()
v = StringVar()
text = Entry(root, textvariable=v)
text.grid(column=0, row=0)
text. focus_set()
root.mainloop()