belca

from tkinter import*
tk=Tk()
tk.geometry("260x370")
ent = Entry(justify="right",font="14")
ent.place(x=20,y=20,width=220,height=30)
def BO_click():
                ent.insert(END,"0")
BO=Button(text="0",font="14",command=BO_click)
BO.place(x=20,y=310,width=100,height=40)
def B7_click():
                ent.insert(END,"7")
B7=Button(text="7",font="14",command=B7_click)
B7.place(x=20,y=130,width=40,height=40)
def BC_click():
                ent.delete(0,END)
BC=Button(text="C",font="14",command=BC_click)
BC.place(x=20,y=80,width=100,height=40)
def B4_click():
                ent.insert(END,"4")
B4=Button(text="4",font="14",command=B4_click)
B4.place(x=20,y=180,width=40,height=40)
def B1_click():
                ent.insert(END,"1")
B1=Button(text="1",font="14",command=B1_click)
B1.place(x=20,y=230,width=40,height=40)
def B5_click():
                ent.insert(END,"5")
B5=Button(text="5",font="14",command=B5_click)
B5 .place(x=80,y=180,width=40,height=40)
def B2_click():
                ent.insert(END,"2")
B2=Button(text="2",font="14",command=B2_click)
B2.place(x=80,y=230,width=40,height=40)
def B8_click():
                ent.insert(END,"8")
B8=Button(text="8",font="14",command=B8_click)
B8.place(x=80,y=130,width=40,height=40)


def B3_click():
                ent.insert(END,"3")
B3=Button(text="3",font="14",command=B3_click)
B3 .place(x=140,y=180,width=40,height=40)
def B6_click():
                ent.insert(END,"6")
B6=Button(text="6",font="14",command=B6_click)
B6.place(x=140,y=230,width=40,height=40)
def B9_click():
                ent.insert(END,"9")
B9=Button(text="9",font="14",command=B9_click)
B9.place(x=140,y=130,width=40,height=40)