Is there a way to insert a function to round to 2 decimal places?-CodePudding

I'm trying to figure out how to get the result of mpg for these cars and have them rounded down to 2 decimal points.

cars = [
{"make": "Ford", "model": "Fiesta", "mileage": 23000, "fuel_consumed": 460},
{"make": "Ford", "model": "Focus", "mileage": 17000, "fuel_consumed": 350},
{"make": "Mazda", "model": "MX-5", "mileage": 49000, "fuel_consumed": 900},
{"make": "Mini", "model": "Cooper", "mileage": 31000, "fuel_consumed": 235},
]


def calculate_mpg(car):
  mpg = car ["mileage"] / car["fuel_consumed"]
  return mpg
  
def car_name(car):
  name = f"{car['make']} {car['model']}"
  return name
  

def print_car_info(car):
  name = car_name(car)
  mpg = calculate_mpg(car)
  
  print(f"{name} does {mpg} miles per gallon.")

  
for car in cars:
  print_car_info(car)

CodePudding user response：

You could also use something like

round(x, y)

with x being the number you want to round and y being the number of decimal places.

CodePudding user response：

Use numpy

np.round(mpg, 2) ## Rounds to two decimal places