DAY7: Python day 10

Functions with Outputs

• return keyword to output and store the result

-docstrings: right after the def line; """description of function"""

End of the lesson project: Calculator

from art import logo
print(logo)

#Calculator


#Add
def add(n1, n2):
    return n1 + n2


#Subtract
def subtract(n1, n2):
    return n1 - n2


#Multiply
def multiply(n1, n2):
    return n1 * n2


#Divide
def divide(n1, n2):
    return n1 / n2



operations = {"+": add, "-": subtract, "*": multiply, "/": divide}

def calculator():

  num1 = float(input("What's the first number?: "))

  for item in operations:
      print(item)

  should_continue = True
  while should_continue == True:
      operation_symbol = input("Pick an operation: ")
      num2 = float(input("What's the next number?: "))

      calculation_function = operations[operation_symbol]
      answer = calculation_function(num1, num2)

      print(f"{num1} {operation_symbol} {num2} = {answer}")

      if input(f"Type 'y' to continue calculating with {answer}, or type 'n' to start a new calculation: ") == "y":
          num1 = answer
      else:
        should_continue = False
        calculator()

calculator()