将嵌套字典压缩为更具可读性的字典

def compress_dict(nested_dict, parent_key='', sep='.'):
    compressed_dict = {}
    for key, value in nested_dict.items():
        new_key = f"{parent_key}{sep}{key}" if parent_key else key
        if isinstance(value, dict):
            compressed_dict.update(compress_dict(value, new_key, sep=sep))
        else:
            compressed_dict[new_key] = value
    return compressed_dict

nested_dict = {
    'key1': 'value1',
    'key2': {
        'subkey1': 'value2',
        'subkey2': {
            'subsubkey1': 'value3',
            'subsubkey2': 'value4'
        }
    },
    'key3': 'value5'
}

compressed_dict = compress_dict(nested_dict)
print(compressed_dict)

{
    'key1': 'value1',
    'key2.subkey1': 'value2',
    'key2.subkey2.subsubkey1': 'value3',
    'key2.subkey2.subsubkey2': 'value4',
    'key3': 'value5'
}