100DaysOfCode/calculator.py at main · PiyushBagde/100DaysOfCode · GitHub

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logo = """
 _____________________
|  _________________  |
| | Pythonista   0. | |  .----------------.  .----------------.  .----------------.  .----------------.
| |_________________| | | .--------------. || .--------------. || .--------------. || .--------------. |
|  ___ ___ ___   ___  | | |     ______   | || |      __      | || |   _____      | || |     ______   | |
| | 7 | 8 | 9 | | + | | | |   .' ___  |  | || |     /  \     | || |  |_   _|     | || |   .' ___  |  | |
| |___|___|___| |___| | | |  / .'   \_|  | || |    / /\ \    | || |    | |       | || |  / .'   \_|  | |
| | 4 | 5 | 6 | | - | | | |  | |         | || |   / ____ \   | || |    | |   _   | || |  | |         | |
| |___|___|___| |___| | | |  \ `.___.'\  | || | _/ /    \ \_ | || |   _| |__/ |  | || |  \ `.___.'\  | |
| | 1 | 2 | 3 | | x | | | |   `._____.'  | || ||____|  |____|| || |  |________|  | || |   `._____.'  | |
| |___|___|___| |___| | | |              | || |              | || |              | || |              | |
| | . | 0 | = | | / | | | '--------------' || '--------------' || '--------------' || '--------------' |
| |___|___|___| |___| |  '----------------'  '----------------'  '----------------'  '----------------'
|_____________________|
"""

print(logo)

def doCalculation(num1, num2, operation):
  if operation == "+":
    return num1 + num2
  elif operation == "-":
    return num1 - num2
  elif operation == "/":
    return num1/num2
  elif operation == "*":
    return num1*num2
  else:
    return "Enter appropriate option"


def calculator():
  num1 = float(input("What's your first number : "))
  go_ahead = 'y'

  while go_ahead == 'y':
    print('''
    +
    -
    /
    *
    ''')

    operation = input('Choose one of the operation from above : ')

    num2 = float(input("What's your second number : "))

    answer = doCalculation(num1, num2, operation)

    print(f'{num1} {operation} {num2} = {answer}')

    if input(f"typev 'y' to continue with {answer} and 'n' to start new calculator ") == 'y':
      num1 = answer
    else:
      go_ahead = "n"
      print(logo)
      calculator()

calculator()