json Deserialization of Python Objects

openweathermap.json

{
	"coord": {
		"lon": 114.0683, "lat":22.5455
	}

	,
	"weather":[ {
		"id": 803, "main":"Clouds", "description":"多云", "icon":"04d"
	}

	],
	"base":"stations",
	"main": {
		"temp": 299.1, "feels_like":299.1, "temp_min":296.39, "temp_max":300.29, "pressure":1018, "humidity":79, "sea_level":1018, "grnd_level":1017
	}

	,
	"visibility":10000,
	"wind": {
		"speed": 2.73, "deg":137, "gust":3.32
	}

	,
	"clouds": {
		"all": 82
	}

	,
	"dt":1702530001,
	"sys": {
		"type": 2, "id":2031340, "country":"CN", "sunrise":1702508106, "sunset":1702546869
	}

	,
	"timezone":28800,
	"id":1795565,
	"name":"Shenzhen",
	"cod":200
}

# encoding: utf-8
# 版权所有 2023 涂聚文有限公司
# 许可信息查看：
# 描述：
# Author    : geovindu,Geovin Du 涂聚文.
# IDE       : PyCharm 2023.1 python 3.11
# Datetime  : 2023/12/14 22:14
# User      : geovindu
# Product   : PyCharm
# Project   : pyBaiduAi
# File      : Clouds.py
# explain   : 学习

import json
import pickle
from typing import List
from typing import Any
from dataclasses import dataclass



@dataclass
class Clouds:
    all: int

    @staticmethod
    def from_dict(obj: Any) -> 'Clouds':
        _all = int(obj.get("all"))
        return Clouds(_all)


@dataclass
class Coord:
    lon: float
    """
    经度
    """
    lat: float
    """
    纬度
    """
    @staticmethod
    def from_dict(obj: Any) -> 'Coord':
        _lon = float(obj.get("lon"))
        _lat = float(obj.get("lat"))
        return Coord(_lon, _lat)


@dataclass
class Main:
    """

    """
    temp: float
    """
    温度 
    """

    feels_like: float
    temp_min: float
    """
    最低温
    """
    temp_max: float
    """
    最高温
    """
    pressure: int
    humidity: int
    """
    湿魔
    """
    sea_level: int
    grnd_level: int

    @staticmethod
    def from_dict(obj: Any) -> 'Main':
        _temp = float(obj.get("temp"))
        _feels_like = float(obj.get("feels_like"))
        _temp_min = float(obj.get("temp_min"))
        _temp_max = float(obj.get("temp_max"))
        _pressure = int(obj.get("pressure"))
        _humidity = int(obj.get("humidity"))
        _sea_level = int(obj.get("sea_level"))
        _grnd_level = int(obj.get("grnd_level"))
        return Main(_temp, _feels_like, _temp_min, _temp_max, _pressure, _humidity, _sea_level, _grnd_level)


@dataclass
class Sys:
    """
    系统信息
    """
    type: int
    id: int
    country: str
    """
    所属国家
    """
    sunrise: int
    """
    日出时间戳
    """
    sunset: int
    """
    日落时间戳
    """

    @staticmethod
    def from_dict(obj: Any) -> 'Sys':
        _type = int(obj.get("type"))
        _id = int(obj.get("id"))
        _country = str(obj.get("country"))
        _sunrise = int(obj.get("sunrise"))
        _sunset = int(obj.get("sunset"))
        return Sys(_type, _id, _country, _sunrise, _sunset)


@dataclass
class Weather:
    """
    天气情况
    """
    id: int
    main: str
    description: str
    """
    天气
    """
    icon: str
    """
    图标ID
    """

    @staticmethod
    def from_dict(obj: Any) -> 'Weather':
        _id = int(obj.get("id"))
        _main = str(obj.get("main"))
        _description = str(obj.get("description"))
        _icon = str(obj.get("icon"))
        return Weather(_id, _main, _description, _icon)


@dataclass
class Wind:
    """
    风况
    """
    speed: float
    """
    风速
    """
    deg: int
    gust: float

    @staticmethod
    def from_dict(obj: Any) -> 'Wind':
        _speed = float(obj.get("speed"))
        _deg = int(obj.get("deg"))
        _gust = float(obj.get("gust"))
        return Wind(_speed, _deg, _gust)

@dataclass
class OpenWeather:
    """"
    天气类
    """
    coord: Coord
    weather: List[Weather]
    base: str
    main: Main
    visibility: int
    wind: Wind
    clouds: Clouds
    dt: int
    sys: Sys
    timezone: int
    id: int
    name: str
    cod: int

    @staticmethod
    def from_dict(obj: Any) -> 'OpenWeather':
        _coord = Coord.from_dict(obj.get("coord"))
        _weather = [Weather.from_dict(y) for y in obj.get("weather")]
        _base = str(obj.get("base"))
        _main = Main.from_dict(obj.get("main"))
        _visibility = int(obj.get("visibility"))
        _wind = Wind.from_dict(obj.get("wind"))
        _clouds = Clouds.from_dict(obj.get("clouds"))
        _dt = int(obj.get("dt"))
        _sys = Sys.from_dict(obj.get("sys"))
        _timezone = int(obj.get("timezone"))
        _id = int(obj.get("id"))
        _name = str(obj.get("name"))
        _cod = int(obj.get("cod"))
        return OpenWeather(_coord, _weather, _base, _main, _visibility, _wind, _clouds, _dt, _sys, _timezone, _id, _name, _cod)

调用：

import Model.Clouds



def print_hi(name):
    # Use a breakpoint in the code line below to debug your script.
    print(f'Hi, {name} world,geovindu,涂聚文')  # Press Ctrl+F8 to toggle the breakpoint.


# Press the green button in the gutter to run the script.
if __name__ == '__main__':
    print_hi('PyCharm,geovindu')

    #deserialization process:
    with open('openweathermap.json',encoding='utf-8') as json_file:
        data = json.load(json_file)
        print("data from file:")
        print(type(data))
        root=Model.Clouds.OpenWeather.from_dict(data)
        print(root)
        print("湿度",root.main.humidity)
        print("天气：", root.weather[0].description)