# 具名元组

colections.namedtuple是一个工厂函数，可以创建一个带有名称的类和字段名称的元组。

```python
from collections import namedtuple

# 类名，各个字段名作为namedtuple()参数, 字段名由空格分开
City = namedtuple('City', 'name country population coordinates')
tokyo = City('Tokyo', 'JP', 36.933, (35.689, 139.691))
```


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