<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def initialize():
 """ Initializes the cauldron library by confirming that it can be imported by the importlib library. If the attempt to import it fails, the system path will be modified and the attempt retried. If both attempts fail, an import error will be raised. """


    cauldron_module = get_cauldron_module()
    if cauldron_module is not None:
        return cauldron_module

    sys.path.append(ROOT_DIRECTORY)
    cauldron_module = get_cauldron_module()

    if cauldron_module is not None:
        return cauldron_module

    raise ImportError(' '.join((
        'Unable to import cauldron.'
        'The package was not installed in a known location.'
    )))