code: def lambda_tuple_converter(func):
      
      if func is not None and func.__code__.co_argcount == 1:
          return lambda *args: func(args[0] if len(args) == 1 else args)
      else:
          return func
docs: Converts a Python 2 function as
        lambda (x,y): x + y
      In the Python 3 format:
        lambda x,y : x + y