I added the gui calculator python file.(Pulkit)

Python/gui_caluclator.py

@@ -0,0 +1,70 @@
+import tkinter as tk
+
+calculation = ''
+
+def add_to_calculations(symbol):
+    global calculation
+    calculation+= str(symbol)
+    text_result.delete(1.0,"end")
+    text_result.insert(1.0,calculation)
+
+def evaluate_calculation():
+    global calculation
+    try:
+        result= str(eval(calculation))
+        calculation=""
+        text_result.delete(1.0,"end")
+        text_result.insert(1.0, result)
+    except:
+        clear_field()
+        text_result.insert(1.0 ,"Error")
+
+
+def clear_field():
+    global calculation
+    calculation = ""
+    text_result.delete(1.0, "end")
+
+root=tk.Tk()
+root.geometry("300x275")
+
+text_result=tk.Text(root, height=2, width=16,font=('Arial',24))
+text_result.grid(columnspan=5)
+
+btn_1= tk.Button(root, text="1",command=lambda:add_to_calculations(1),width=5,font=('Arial',14))
+btn_1.grid(row=2,column=1)
+btn_2= tk.Button(root, text="2",command=lambda:add_to_calculations(2),width=5,font=('Arial',14))
+btn_2.grid(row=2,column=2)
+btn_3= tk.Button(root, text="3",command=lambda:add_to_calculations(3),width=5,font=('Arial',14))
+btn_3.grid(row=2,column=3)
+btn_4= tk.Button(root, text="4",command=lambda:add_to_calculations(4),width=5,font=('Arial',14))
+btn_4.grid(row=3,column=1)
+btn_5= tk.Button(root, text="5",command=lambda:add_to_calculations(5),width=5,font=('Arial',14))
+btn_5.grid(row=3,column=2)
+btn_6= tk.Button(root, text="6",command=lambda:add_to_calculations(6),width=5,font=('Arial',14))
+btn_6.grid(row=3,column=3)
+btn_7= tk.Button(root, text="7",command=lambda:add_to_calculations(7),width=5,font=('Arial',14))
+btn_7.grid(row=4,column=1)
+btn_8= tk.Button(root, text="8",command=lambda:add_to_calculations(8),width=5,font=('Arial',14))
+btn_8.grid(row=4,column=2)
+btn_9= tk.Button(root, text="9",command=lambda:add_to_calculations(9),width=5,font=('Arial',14))
+btn_9.grid(row=4,column=3)
+btn_0= tk.Button(root, text="0",command=lambda:add_to_calculations(0),width=5,font=('Arial',14))
+btn_0.grid(row=5,column=2)
+btn_plus= tk.Button(root, text="+",command=lambda:add_to_calculations("+"),width=5,font=('Arial',14))
+btn_plus.grid(row=2,column=4)
+btn_minus= tk.Button(root, text="-",command=lambda:add_to_calculations("-"),width=5,font=('Arial',14))
+btn_minus.grid(row=3,column=4)
+btn_multiply= tk.Button(root, text="x",command=lambda:add_to_calculations("*"),width=5,font=('Arial',14))
+btn_multiply.grid(row=4,column=4)
+btn_divide= tk.Button(root, text="/",command=lambda:add_to_calculations("/"),width=5,font=('Arial',14))
+btn_divide.grid(row=5,column=4)
+btn_paran_1= tk.Button(root, text="(",command=lambda:add_to_calculations("("),width=5,font=('Arial',14))
+btn_paran_1.grid(row=5,column=1)
+btn_paran_2= tk.Button(root, text=")",command=lambda:add_to_calculations(")"),width=5,font=('Arial',14))
+btn_paran_2.grid(row=5,column=3)
+btn_clear= tk.Button(root, text="clear",command= clear_field,width=12,font=('Arial',14))
+btn_clear.grid(row=6, column=1,columnspan=2)
+btn_equal= tk.Button(root, text="=", command=evaluate_calculation ,width=12, font=('Arial', 14))
+btn_equal.grid(row=6,column=3,columnspan=2)
+root.mainloop()