how to make a calculator in python
def calculate(a, b, formula):
if formula == '+':
return a + b
elif formula == '-':
return a - b
elif formula == '*':
return a * b
elif formula == '/':
return a / b
else:
print('Just Leave!')
return 'Closing program...'
print('Choose a number')
a = float(input())
print('Choose a second number')
b = float(input())
print('Do you want to * / - or + ?')
formula = input()
answer = calculate(a, b, formula)
print(answer)