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marshmallow: 简化Python对象系列化

时间:2017-08-02 13:17:00      阅读:221      评论:0      收藏:0      [点我收藏+]

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转载:http://www.thinksaas.cn/topics/0/594/594368.html

 

marshmallow -一个轻量级的库用于将复杂对象转成简单的Python数据类型。或从简单的Python数据类型转成复杂对象。

from datetime import date
from marshmallow import Schema, fields, pprint

class ArtistSchema(Schema):
    name = fields.Str()

class AlbumSchema(Schema):
    title = fields.Str()
    release_date = fields.Date()
    artist = fields.Nested(ArtistSchema)

bowie = dict(name=‘David Bowie‘)
album = dict(artist=bowie, title=‘Hunky Dory‘, release_date=date(1971, 12, 17))

schema = AlbumSchema()
result = schema.dump(album)
pprint(result.data, indent=2)
# { ‘artist‘: {‘name‘: ‘David Bowie‘},
#   ‘release_date‘: ‘1971-12-17‘,
#   ‘title‘: ‘Hunky Dory‘}

In short, marshmallow schemas can be used to:

  • Validate input data.
  • Deserialize input data to app-level objects.
  • Serialize app-level objects to primitive Python types. The serialized objects can then be rendered to standard formats such as JSON for use in an HTTP API.

Get It Now

$ pip install -U marshmallow

Documentation

Full documentation is available at http://marshmallow.readthedocs.org/ .

Requirements

  • Python >= 2.6 or >= 3.3

marshmallow has no external dependencies outside of the Python standard library, although python-dateutil is recommended for robust datetime deserialization.

Ecosystem

A list of marshmallow-related libraries can be found at the GitHub wiki here:

https://github.com/marshmallow-code/marshmallow/wiki/Ecosystem

Project Links

License

MIT licensed. See the bundled LICENSE file for more details.


项目地址: https://github.com/marshmallow-code/marshmallow

marshmallow: 简化Python对象系列化

标签:ble   dateutil   put   change   types   tool   hunk   bar   UI   

原文地址:http://www.cnblogs.com/c-x-a/p/7273004.html

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