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SimpleCalculator.py

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+def add_nums(num1, num2):
+    return f"{num1} + {num2} = {num1+num2}"
+
+
+def sub_nums(num1, num2):
+    return f"{num1} - {num2} = {num1-num2}"
+
+
+def mult_nums(num1, num2):
+    return f"{num1} * {num2} = {num1*num2}"
+
+
+def div_nums(num1, num2):
+    if num2 == 0:
+        return "Invalid output"
+    else:
+        return f"{num1} / {num2} = {num1/num2}"
+
+
+def main():
+    while True:
+        chk = input("You want to do calculation (y/n): ")
+        if chk == "y":
+            num1 = float(input("Enter first number: "))
+            num2 = float(input("Enter second number: "))
+            op = input("Enter the operation you want to perform: ")
+
+            if op == "+":
+                print(add_nums(num1, num2))
+            elif op == "-":
+                print(sub_nums(num1, num2))
+            elif op == "*":
+                print(mult_nums(num1, num2))
+            elif op == "/":
+                print(div_nums(num1, num2))
+            else:
+                print("Please Enter valid operator")
+        elif chk == "n":
+            print("Exiting Program")
+            break
+        else:
+            print("Please Enter valid option")
+
+
+if __name__ == "__main__":
+    main()