python - How to align different widgets in frame inside a window

Question

I am creating a little student database system and I have to put labels, entries, buttons all of these things in it but seems like aligning widgets is not easy.

Also my radiobuttons disappeared while trying to align those below entries. Please help.

Please see this screenshot

I want to align all the labels and entries and buttons on the other side.

Here is the code

import tkinter
from tkinter import *
from tkinter import ttk

mainwindow = Tk()
mainwindow.title('Student Database')
mainwindow.config(bg='#4d4d4d')


#centering the main window on screen
def centrewindow(w, h):
    ws = mainwindow.winfo_screenwidth()
    hs = mainwindow.winfo_screenheight()
    x = (ws/2) - (w/2)
    y = (hs/2) -(h/2)
    mainwindow.geometry('%dx%d+%d+%d' % (w, h, x, y))
centrewindow(900, 500)

#Creatiing Main Frame of our GUI
mainframe = Frame(width= 500, height= 350, bg= '#d9d9d9', bd= 0.3, relief= SOLID)
mainframe.pack(pady=150, padx= 250, fill='both', expand=True)


#Creating Tab Control here
tabcontrol = ttk.Notebook(mainframe)


#Tab1 for Regiratation for new students
tab1 = ttk.Frame(tabcontrol)
tabcontrol.add(tab1, text='New Student')


studentnamelabel = Label(tab1, text='Enter Student Name:', font=('Open Sans Semibold', 12))
studentnamelabel.grid(row=0, column=0, padx= 50, pady= 10)
studentnameentry = Entry(tab1, width= 70)
studentnameentry.grid(row=0, column=1, padx=300, pady= 10)

rollnolabel = Label(tab1, text='Enter Rollno:', font=('Open Sans Semibold', 12))
rollnolabel.grid(row=1, column=0, padx= 100, pady= 10)
rollnoentry = Entry(tab1, width= 70)
rollnoentry.grid(row=1, column=1, padx=300, pady= 10)

genderlabel = Label(tab1, text='Select Gender:', font=('Open Sans Semibold', 12))
genderlabel.grid(row=2, column=0, padx= 20, pady= 10)
genderradio1 = Radiobutton(tab1, text='Male', value= 1)
genderradio1.grid(row=2, column=1, padx=100, pady=10)
genderradio2 = Radiobutton(tab1, text='Female',value= 2)
genderradio2.grid(row=2, column=2, padx=10, pady=10)




tab2 = ttk.Frame(tabcontrol)
tabcontrol.add(tab2, text='Tab no. 2')
l2 = Label(tab2, text='Hello Its Tab 2')
l2.pack()

tabcontrol.pack(expand=1, fill='both')
mainwindow.mainloop()

Answer 1

Aligning widgets is not so easy as it seems. To align a widget we have three different methods(pack, grid, place), where you have used the grid method which I also prefer. You have used padding with a large value which has changed its alignment to worse. Try adjusting the padding and grid on your own. If still, you have a problem you are welcomed to reach me and I will provide you with the code with a nice alignment, but try approaching it on your own else if you are unable to comment me.