log_decorator.py

def log(func_name=""):
  def decorator(func):
    def wrapper(*args, **kwargs):
      func_sig = f"{func_name} | " if func_name else ""
      print(f"{func_sig}Args: {args} {kwargs}")
      result = func(*args, **kwargs)
      print(f"{func_sig}Result: {result}")
      return result
    return wrapper
  return decorator


@log("add")
def add(x):
  return x + 1

# add | Args: (1,) {}
# add | Result: 2