Getting various LabelFrame widgets in th same grid's row together

Question

I've been working on a welcome window for my app and I can't seem to get the LabelFrames on the last row together on the window. I've tried configuring the column weight, by adding padx and by eliminating the columnspan, buth nothing seems to work and the LabelFrame widgets keep the same distance.

The Frame has grid packing and in the last row the LabelFrames are placed.

Here's my code:

import tkinter as tk
import tkinter.font as tkf

    class ventana_inicio(tk.Frame):
        def __init__(self,parent,controller,dbs):
        tk.Frame.__init__(self,controller)
        self.pack()
        self.controller=controller
        self.db_state=dbs

        lblmuc=tk.Label(self,text="MAMOOTS ULTIMATE CLUB",font=tkf.Font(family="Arial Black",size="20"))
        lbl98=tk.Label(self,text="Alive since 1998",font=tkf.Font(family="Segoe Script",slant="italic"))
        lblbla=tk.Label(self,text="Version 1.0 // 2020",font=tkf.Font(family="Arial Black",size="8"),width=20)
    
        lbfDB=tk.LabelFrame(self,text="SQL")
        btnIDB=tk.Button(lbfDB,text="Iniciar")
        btnCDB=tk.Button(lbfDB,text="Cargar")
        btnBDB=tk.Button(lbfDB,text="Borrar")

        lbfinf=tk.LabelFrame(self,text="Aplicación")
        btnIAP=tk.Button(lbfinf,text="Iniciar")
        btnLAP=tk.Button(lbfinf,text="Ver Log")

        lfbst=tk.LabelFrame(self,text="Estado")
        btnst=tk.Button(lfbst,text="Revisar")

        lblmuc.grid(row=0,column=0,columnspan=6)
        lbl98.grid(row=1,column=0,columnspan=6)
        lblbla.grid(row=2,column=0,columnspan=6)
        lbfDB.grid(row=3,column=0,columnspan=3,padx=5)
        lbfinf.grid(row=3,column=3,columnspan=2,padx=5)
        lfbst.grid(row=3,column=5,padx=5)

        btnIDB.grid(row=0,column=0)
        btnCDB.grid(row=0,column=1)
        btnBDB.grid(row=0,column=2)

        btnIAP.grid(row=0,column=0)
        btnLAP.grid(row=0,column=1)

        btnst.grid(row=0,column=0)

Answer 1

You need to use the sticky attribute to tell each labelframe to "stick" to the edges of the space they have been given.

lbfDB.grid(row=3,column=0,columnspan=3,padx=sticky="ew")
lbfinf.grid(row=3,column=3,columnspan=2,padx=5, sticky="ew")
lfbst.grid(row=3,column=5,padx=5, sticky="ew")