@classmethod
def get_code(cls, fullname):
    """Method to return the code object for fullname.

        Should return None if not applicable (e.g. built-in module).
        Raise ImportError if the module cannot be found.
        """
    source = cls.get_source(fullname)
    if source is None:
        return None
    try:
        path = cls.get_filename(fullname)
    except ImportError:
        return cls.source_to_code(source)
    else:
        return cls.source_to_code(source, path)
