Simply Calc v2

[jefsummers]

I think he wants the result displayed, rather than the entered text.

eval() is risky, and should only be used if you can control its use. That said, this works:

num1 = input("Enter a number: ")
symbol = input("input symbol: ")
num2 = input("Enter a number: ")
st = num1+symbol+num2
print(eval(st))

Output:
Enter a number: 4
input symbol: *
Enter a number: 3
12