Você está trabalhando em um projeto Python 3.X que exige a...

def process_numbers(numbers):

     result = []

     for x in numbers:

        if x % 2 == 0: result.append(x**2)

      else: result.append(x**3)

     return result

def process_numbers(numbers):

    result = [x**2 if x % 2 == 0 else x**3 for x

in numbers]

    return result

def process_numbers(numbers):

      even_squared = list(filter(lambda x: x %

2 == 0, numbers))

      odd_cubed = list(filter(lambda x: x % 2 !=

0, numbers))

       return [x**2 for x in even_squared] +

[x**3 for x in odd_cubed]

def process_numbers(numbers):

      even_squared = map(lambda x: x**2,

filter(lambda x: x % 2 == 0, numbers))

      odd_cubed = map(lambda x: x**3,

filter(lambda x: x % 2 != 0, numbers))

       return list(even_squared) +

list(odd_cubed)