Libdoc: Using python decorator for keyword generates incorrect documentation

[amittendulkar]

I am using a python library with a decorator for the purpose of logging all arguments passed to any keyword like below (using RobotFramework 4.0.1),

# MyLib.py
from robot.api.logger import info, debug

def log_func(func):
  def inner1(*args, **kwargs):
    info(f'Inside {func.__name__}')
    debug(f'Arguments: {args}, {kwargs}')
    r_val = func(*args, **kwargs)
    info(f'Exiting {func.__name__}')
    return r_val

  return inner1


class MyLib:
  @staticmethod
  @log_func
  def activate_config_file(arg1: str = 'val1', arg2: int = 0):
    # Do something with the arguments

  # other keywords

When I try to generate the documentation for activate_config_file keyword I get the following documentation,

It seems the decorator is coming in the way while deciding the arguments. How can we overcome this issue?

[pekkaklarck]

Use functools.wraps as explained in the User Guide:
http://robotframework.org/robotframework/latest/RobotFrameworkUserGuide.html#using-custom-decorators