Gut gemacht!

Funktionen in Python schreiben

Shayne Miel

Software Architect @ Duo Security

Kapitel 1 – Bewährte Vorgehensweisen

Docstrings
DRY und Do One Thing
Pass by assignment (veränderbar vs. unveränderbar)

Kapitel 2 – Kontextmanager

with my_context_manager() as value:
  # do something

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

Kapitel 3 – Dekoratoren

@my_decorator
def my_decorated_function():
  # do something

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

Kapitel 4 – Mehr über Dekoratoren

def my_decorator(func):
  @functools.wraps(func)
  def wrapper(*args, **kwargs):
    return func(*args, **kwargs)
  return wrapper

Kapitel 4 – Mehr über Dekoratoren

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

Danke!

Funktionen in Python schreiben