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why doesnt my label appear in my tkinter window when i use the RAISED relief but does appear when i use another relief?

from tkinter import *
window = Tk()
window.geometry("300x300")
window.config(background="red")
window.title("label")
photo = PhotoImage(file='photo_1.png')
label = Label(window,
text="hello world",
font=('Arial',40,"bold"),
fg="black",
bg="yellow",
relief=RAISED,
bd=10,
padx=20,
pady=20,
image=photo,
compound='bottom')`
label.pack()
window.mainloop()
when i use the RAISED relief, my label doesnt appear in my tkinter window. but when i change it to SUNKEN or FLAT relieves, it does appear.

how to add background just for text not for line in Tkinter python

I want to add background just for text not line . I work with Tkinter an text_widget
# text widget
self.text_widget = Text(self.window, width=10, height=50, bg='white', fg=TEXT_COLOR,
font=FONT, padx=20, pady=20, wrap=WORD,relief='raised')
self.text_widget.place(relheight=0.745, relwidth=0.98, rely=0.08)
self.text_widget.configure(cursor="arrow", state=DISABLED)
msg2 = f"{bot_name}: {healthcare}\n\n"
self.text_widget.configure(state=NORMAL)
self.text_widget.tag_config(tagName="respHealth", background="#2ECC71", foreground="black")
self.text_widget.insert(END, msg2, 'respHealth')
the problem I have
capture of backround

Centering button using grid() in tkinter

I am simply trying to center some buttons in Python and it won't work even after looking at other a dozen threads.
This is my code at the moment:
import tkinter as tk
HEIGHT = 600
WIDTH = 1000
root = tk.Tk()
canvas = tk.Canvas(root, height=HEIGHT, width=WIDTH)
canvas.pack()
frame = tk.Frame(root, bg='#000A01')
frame.place(relwidth=1, relheight=1)
button0 = tk.Button(frame, text="LEFT", relief='flat', justify='center', bg='#000A01', fg='#00A010', padx='35', width='0', font=('Monofonto', 18))
button0.grid(row=0, column=0)
button1 = tk.Button(frame, text="CENTER", relief='flat', justify='center', bg='#000A01', fg='#00A010', padx='35', width='0', font=('Monofonto', 18))
button1.grid(row=0, column=1)
button2 = tk.Button(frame, text="RIGHT", relief='flat', justify='center', bg='#000A01', fg='#00A010', padx='35', width='0', font=('Monofonto', 18))
button2.grid(row=0, column=2)
root.mainloop()
this is the output
outputofabovecode
I want all buttons to be centered in the middle of the window and if I were to add more buttons in the same row it would add more to the center.

To center a button using place:
place(relx=0.5, rely=0.5, anchor=CENTER).

How can I insert label in a scrollable canvas?

The scroll don't work at all. What's wrong in the code?
I'm using Python 2.7.16
I read that listbox and text widgets are used only for text. As I want to use labels, I'm trying to insert the labels in a frame, but as a Frame didn't scroll I decided to use a canvas. But I couldn't get it to work.
from Tkinter import *
root = Tk()
frame = Frame(root, width=300, height=200)
frame.grid(row=0, column=0)
canvas=Canvas(frame, bg='#FFFFFF', width=300, height=200, scrollregion=(0,0,500,500))
vbar = Scrollbar(frame, orient=VERTICAL)
vbar.pack(side=RIGHT, fill=Y)
canvas.config(width=300, height=250)
canvas.pack(side=LEFT, expand=True, fill=BOTH)
mylist = Frame(canvas, width=100)
for x in range(10):
texto = Label(mylist, text='CODE', bd=2, width=7, relief=RIDGE)
texto.grid(row=x, column=0)
texto1 = Label(mylist, text='EQUIPAMENT', bd=2, width=20, relief=RIDGE)
texto1.grid(row=x, column=1)
mylist.place(x=0, y=0)
vbar.config(command=canvas.yview)
canvas.config(yscrollcommand=vbar.set)
mainloop()

Text and entry width not the same tkinter

I'm starting to learn Tkinter library and I have a problem...
I use grid to set my window the way I want but I can't figure out how I can set the width of the entry widget the same as the text widget.
When I put the same number, I don't have the same width anyway...
Here is my code :
from tkinter import *
def click():
try:
output.delete(0.0,END)
entered_text=entry.get()
output.insert(END, entered_text)
except:
output.insert(END, "")
def reset():
output.delete(0.0,END)
entry.delete(0,END)
if __name__ == '__main__':
window = Tk()
window.title("TEST")
window.geometry("500x500")
Label (window, text="Nombre de palettes :").grid(row=0, sticky=W)
Label (window, text="Prix :").grid(row=1, sticky=W)
entry = Entry (window)
entry.grid(row=0, column=2)
output = Text(window, width=8, heigh=1, wrap=WORD)
output.grid(row=1, column=2)
accepter=Button(window, text="Accepter", width=6, command=click)
accepter.grid(row=2, column=0)
restart = Button(window, text="Reset", width=6,command=reset)
restart.grid(row=2, column=1)
fin = Button(window, text="Quitter", width=6,command=window.destroy)
fin.grid(row=2, column=2)
window.grid_columnconfigure(4, minsize=100)
window.mainloop()
Thank you in advance.

One way is to expand the widgets to fill the cell:
entry = Entry(window)
entry.grid(row=0, column=2, sticky=E+W, padx=10)
output = Text(window, width=8, heigh=1, wrap=WORD)
output.grid(row=1, column=2, sticky=E+W, padx=10)
Where sticky=E+W fills the cell horizontally, and then I add some padding padx=10 to get a distance from the cell limits.
If one of the widgets always is bigger you can let that widget determine the cell width and then just expand the other widget.