GUYS!!

MAKE FUNCTIONS LIKE THIS!!!!

def aaa(ls: list[int], x:float) -> list[float]:
    return [x * multiplier for x in int_list]

print(aaa([1, 2, 3, 4], 5.1))

DECORATERS ARE KEY!!!

# this is the decorator function
def add_exclamation(func):
  def wrapper(name):
    return func(name) + '!'
  return wrapper

# this is the function being decorated -- the decoratee (?)
def hello(name):
  return 'hello ' + name

# actually decorating the function
hello = add_exclamation(hello)

# now our function's behaviour has changed slightly
print(hello('tom'))    # hello tom!

def add_exclamation(func):
  def wrapper(name):
    return func(name) + '!'
  return wrapper

@add_exclamation
def hello(name):
  return 'hello ' + name

print(hello('tom'))    # hello tom!

gnerator function

def test():
  yield 1
  yield 2
  yield 3

x = test()
print(x)    #

Dunder methods

class Dog:
  # defines how attributes are assigned to dog
  def __init__(self, name, age):
    self.name, self.age = name, age

  # defines what is returned when we str(dog)
  def __str__(self):
    return 'Dog!'

  # defines what is returned when we dog + something
  def __add__(self, something):
    return 'Dog ' + str(something)

  # defines what is returned when we dog[something]
  def __getitem__(self, something):
    return 123