在Python中输入JSON序列化/反序列化 [英] Typed JSON serialization/deserialization in Python

问题描述

class Person:
    first_name = superjson.Property()
    last_name = superjson.Property()
    posts = superjson.Collection(Post)

class Post:
    title = superjson.Property()
    description = superjson.Property()

# ^^^ this approach is very similar to Django models/forms

然后，像这样给定JSON:

Then, given JSON like this:

{
  "first_name": "John", 
  "last_name": "Smith",
  "posts": [
    {"title": "title #1", "description": "description #1"},
    {"title": "title #2", "description": "description #2"},
    {"title": "title #3", "description": "description #3"}
  ]
}

我希望它建立一个适当的Person对象，并设置其中的所有内容:

I want it to build a proper Person object with everything inside it set:

p = superjson.deserialize(json, Person) # note, root type is explicitly provided
print p.first_name # 'John'
print p.last_name # 'Smith'
print p.posts[0].title # 'title #1'
# etc...

• 当然也应该促进序列化
• 默认情况下，它应该与ISO-8601之间的时间进行序列化/反序列化，或者很容易用几行代码来实现.
  • Sure it should also facilitate serialization
  • It should either serialize/deserialize time to/from ISO-8601 by default or be easy to achieve this in couple lines of code.

  所以，我正在寻找这个superjson.有人看到过类似的东西吗?

  So, I'm looking for this superjson. Did anyone see anything similar?

  推荐答案

  Colander 与 limone 结合即可.

  您使用colander定义架构:

  import colander
  import limone
  
  
  @limone.content_schema
  class Characteristic(colander.MappingSchema):
      id = colander.SchemaNode(colander.Int(),
                               validator=colander.Range(0, 9999))
      name = colander.SchemaNode(colander.String())
      rating = colander.SchemaNode(colander.String())        
  
  
  class Characteristics(colander.SequenceSchema):
      characteristic = Characteristic()
  
  
  @limone.content_schema
  class Person(colander.MappingSchema):
      id = colander.SchemaNode(colander.Int(),
                               validator=colander.Range(0, 9999))
      name = colander.SchemaNode(colander.String())
      phone = colander.SchemaNode(colander.String())
      characteristics = Characteristics()
  
  
  class Data(colander.SequenceSchema):
      person = Person()
  

  然后传递您的JSON数据结构:

  then pass in your JSON data structure:

  deserialized = Data().deserialize(json.loads(json_string)) 
  

  这篇关于在Python中输入JSON序列化/反序列化的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！