Compact Calculator by Ved The Pro

Compact Calculator.py

from tkinter import *
from math import *
root, WIDTH, HEIGHT = Tk(), 872, 630
root.geometry(f"{WIDTH}x{HEIGHT}");root.title("Ved The Pro Calculator")
calculationStringFrame = Frame(root);calculationStringFrame.place(x = 0, y = 0, width = WIDTH, height = 100)
calculationOutput = Label(calculationStringFrame, bg = "black", fg = "yellow", text = "", font = ("", 50));calculationOutput.pack(fill = X)
calcButtons = Frame(root);calcButtons.place(x = 0, y = 100)
buttonLayout = [["+", "-", "*", "/"], ["1", "2", "3", "4"], ["5", "6", "7", "8"], ["9", "0", "=", "b"], ["c", "factorial", "**", ","], ["(", ")", "lcm", "gcd"]]
buttonFuncLayoutString = ""
for i in buttonLayout:
    buttonFuncLayoutString += "["
    for j in i:buttonFuncLayoutString += f"lambda :change('{j}'),"
    buttonFuncLayoutString += "],"
buttonFuncLayout = eval(buttonFuncLayoutString)
def change(x):
    global calculationOutput
    if x == "c":calculationOutput["text"] = ""
    elif x == "=":
        try:calculationOutput["text"] = str(eval(calculationOutput["text"]))
        except Exception as e:
            if type(e) == SyntaxError:calculationOutput["text"] = "leading zeros not allowed"
    elif x == "b":calculationOutput["text"] = calculationOutput["text"][:-1]
    else: calculationOutput["text"] += x
for row in range(len(buttonLayout)):
    for col in range(len(buttonLayout[0])):
        button = Button(calcButtons, bg = "black", fg = "yellow", text = buttonLayout[row][col], command = buttonFuncLayout[row][col], width = 8, font = ("", 33));button.grid(row = row, column = col)
root.bind("<Return>", lambda x : change("="))
root.mainloop()