def normalize_keys(self, items):
        """Return a config dictionary with normalized keys regardless of
        whether the keys were specified in environment variables or in config
        files"""
        normalized = {}
        for key, val in items:
            key = key.replace('_', '-')
            if not key.startswith('--'):
                key = '--%s' % key  # only prefer long opts
            normalized[key] = val
        return normalized
dataset/ETHPy150Open anzev/hedwig/build/pip/pip/baseparser.py/ConfigOptionParser.normalize_keys/original