from tkinter import *

root = Tk()

fm = Frame(root)
#fm.pack(fill=BOTH)

Button(fm, text="Login", fg="red").pack()
fm_loc = Entry(fm)
fm.grid(row=2)

label_1 = Label(root, text="Username:")
label_2 = Label(root, text="Password:")

label_1.grid(row=0)
label_2.grid(row=1)

entry_1 = Entry(root)
entry_2 = Entry(root)

entry_1.grid(row=0,column=1)
entry_2.grid(row=1,column=1)

root.mainloop()