diff --git a/Liza-2310990725.py b/Liza-2310990725.py new file mode 100644 index 0000000..ed8d19b --- /dev/null +++ b/Liza-2310990725.py @@ -0,0 +1,200 @@ +# Python program to create a simple GUI +# calculator using Tkinter + +# import everything from tkinter module +from tkinter import * +import math + +# globally declare the expression variable +expression = "" + + +# Function to update expression +# in the text entry box +def press(num): + # point out the global expression variable + global expression + + # concatenation of string + expression = expression + str(num) + + # update the expression by using set method + equation.set(expression) + +def calculate_log(): + try: + global expression + result = math.log(float(expression)) + equation.set(result) + expression = "" + except: + equation.set("Error") + expression = "" + +# Function to evaluate the final expression +def equalpress(): + # Try and except statement is used + # for handling the errors like zero + # division error etc. + + # Put that code inside the try block + # which may generate the error + try: + + global expression + + # eval function evaluate the expression + # and str function convert the result + # into string + total = str(eval(expression)) + + equation.set(total) + + # initialize the expression variable + # by empty string + expression = "" + + # if error is generate then handle + # by the except block + except: + + equation.set(" error ") + expression = "" + +def calculate_sqrt(): + try: + global expression + result = math.sqrt(float(expression)) + equation.set(result) + expression = "" + except: + equation.set("Error") + expression = "" + + +# Function to clear the contents +# of text entry box +def clear(): + global expression + expression = "" + equation.set("") + +def powerpress(): + global expression + expression = expression + "**" + equation.set(expression) + + +# Driver code +if __name__ == "__main__": + # create a GUI window + gui = Tk() + + # set the background colour of GUI window + gui.configure(background="black") + + # set the title of GUI window + gui.title("Simple Calculator") + + # set the configuration of GUI window + gui.geometry("270x150") + + # StringVar() is the variable class + # we create an instance of this class + equation = StringVar() + + # create the text entry box for + # showing the expression . + expression_field = Entry(gui, textvariable=equation, background="black",fg="white") + + # grid method is used for placing + # the widgets at respective positions + # in table like structure . + expression_field.grid(columnspan=4, ipadx=70) + + # create a Buttons and place at a particular + # location inside the root window . + # when user press the button, the command or + # function affiliated to that button is executed . + button1 = Button(gui, text=' 1 ', fg='black', bg='light blue', + command=lambda: press(1), height=1, width=7) + button1.grid(row=2, column=0) + + button2 = Button(gui, text=' 2 ', fg='black', bg='light pink', + command=lambda: press(2), height=1, width=7) + button2.grid(row=2, column=1) + + button3 = Button(gui, text=' 3 ', fg='black', bg='light blue', + command=lambda: press(3), height=1, width=7) + button3.grid(row=2, column=2) + + button4 = Button(gui, text=' 4 ', fg='black', bg='light pink', + command=lambda: press(4), height=1, width=7) + button4.grid(row=3, column=0) + + button5 = Button(gui, text=' 5 ', fg='black', bg='light blue', + command=lambda: press(5), height=1, width=7) + button5.grid(row=3, column=1) + + button6 = Button(gui, text=' 6 ', fg='black', bg='light pink', + command=lambda: press(6), height=1, width=7) + button6.grid(row=3, column=2) + + button7 = Button(gui, text=' 7 ', fg='black', bg='light blue', + command=lambda: press(7), height=1, width=7) + button7.grid(row=4, column=0) + + button8 = Button(gui, text=' 8 ', fg='black', bg='light pink', + command=lambda: press(8), height=1, width=7) + button8.grid(row=4, column=1) + + button9 = Button(gui, text=' 9 ', fg='black', bg='light blue', + command=lambda: press(9), height=1, width=7) + button9.grid(row=4, column=2) + + button0 = Button(gui, text=' 0 ', fg='black', bg='light pink', + command=lambda: press(0), height=1, width=7) + button0.grid(row=5, column=0) + + plus = Button(gui, text=' + ', fg='black', bg='white', + command=lambda: press("+"), height=1, width=7) + plus.grid(row=2, column=3) + + minus = Button(gui, text=' - ', fg='black', bg='white', + command=lambda: press("-"), height=1, width=7) + minus.grid(row=3, column=3) + + multiply = Button(gui, text=' * ', fg='black', bg='white', + command=lambda: press("*"), height=1, width=7) + multiply.grid(row=4, column=3) + + divide = Button(gui, text=' / ', fg='black', bg='white', + command=lambda: press("/"), height=1, width=7) + divide.grid(row=5, column=3) + + equal = Button(gui, text=' = ', fg='black', bg='light pink', + command=equalpress, height=1, width=7) + equal.grid(row=5, column=2) + + clear = Button(gui, text='Clear', fg='black', bg='light blue', + command=clear, height=1, width=7) + clear.grid(row=5, column='1') + + Decimal= Button(gui, text='.', fg='black', bg='white', + command=lambda: press('.'), height=1, width=7) + Decimal.grid(row=6, column=0) + + power_button = Button(gui, text=' ^ ', fg='black', bg='white', + command=powerpress, height=1, width=7) + power_button.grid(row=6, column=1) + + log_button = Button(gui, text=' ln ', fg='black', bg='white', + command=calculate_log, height=1, width=7) + log_button.grid(row=6, column=2) + + sqrt_button = Button(gui, text=' √ ', fg='black', bg='white', + command=calculate_sqrt, height=1, width=7) + sqrt_button.grid(row=6, column=3) + + # start the GUI + gui.mainloop()