Lesson Learned

Chapter 1 - Best Practices

• Docstrings
• DRY and Do One Thing
• Pass by assignment(mutable vs immutable)

Chapter 2 - Context Managers

with my_context_manager() as value:
# do something

@contextlib.contextmanager
def my_function():
# this function can be used in a “with” statement now 

Chapter 3 - Decorators

@my_decorator
def my_decorated_function():
# do something

def my_decorator(func):
   def wrapper(*args, **kwargs):
      return func(*args, **kwargs)
   return wrapper

Chapter 4 - More on Decorators

def decorator_that_takes_args(a, b, c):
   def decorator(func):
      @functools.wraps(func)
      def wrapper(*args, **kwargs):
         return func(*args, **kwargs)
      return wrapper 
return decorator

• decorator 추가 공부 필요