def get_argument()

in launcher/config_validator/value_validator.py [0:0]

• 10 lines of code
• 3 McCabe index (conditional complexity)

def get_argument(config: DictConfig, argument_name: str):
    """
    Return the value of given argument_name from config

    Parameters:
    config : Configuration dictionary
    argument_name : The name of argument to fetch.

    Returns:
    bool: Argument if present else return None
    argument_name can have a nested key like key1.key2 in which case we will return config[key1][key2].
    If  config[key1] is None for above case we will return None
    """
    argument_name_splits = argument_name.split(".")
    if len(argument_name_splits) > 1:
        subconfig = config.get(argument_name_splits[0])
        if subconfig is None:
            return None
        argument_name_splits.pop(0)
        remaining_argument_name = ".".join(argument_name_splits)
        return get_argument(subconfig, remaining_argument_name)
    return config.get(argument_name)