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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def _load_defaults(self, default='settings.py'):
        '''
        Load the default settings
        '''
        if default[-3:] == '.py':
            default = default[:-3]

        self.my_settings = {}
        try:
            settings = importlib.import_module(default)
            self.my_settings = self._convert_to_dict(settings)
        except ImportError:
            log.warning("No default settings found")