python 获取天气信息,并绘制曲线

import urllib.request
import gzip
import json
print('------天气查询------')
def get_weather_data() :
    city_name = input('请输入要查询的城市名称:')
    url1 = 'http://wthrcdn.etouch.cn/weather_mini?city='+urllib.parse.quote(city_name)
    url2 = 'http://wthrcdn.etouch.cn/weather_mini?citykey=101010100'
    #网址1只需要输入城市名,网址2需要输入城市代码
    #print(url1)
    weather_data = urllib.request.urlopen(url1).read()
    #读取网页数据
    weather_data = gzip.decompress(weather_data).decode('utf-8')
    #解压网页数据
    weather_dict = json.loads(weather_data)
    #将json数据转换为dict数据
    return weather_dict

def show_weather(weather_data):
    weather_dict = weather_data
    #将json数据转换为dict数据
    if weather_dict.get('desc') == 'invilad-citykey':
        print('你输入的城市名有误,或者天气中心未收录你所在城市')
    elif weather_dict.get('desc') =='OK':
        forecast = weather_dict.get('data').get('forecast')
        print('城市:',weather_dict.get('data').get('city'))
        print('温度:',weather_dict.get('data').get('wendu')+'')
        print('感冒:',weather_dict.get('data').get('ganmao'))
        print('风向:',forecast[0].get('fengxiang'))
        print('风级:',forecast[0].get('fengli'))
        print('高温:',forecast[0].get('high'))
        print('低温:',forecast[0].get('low'))
        print('天气:',forecast[0].get('type'))
        print('日期:',forecast[0].get('date'))
        print('*******************************')
        four_day_forecast =input('是否要显示未来四天天气,是/否:')
        if four_day_forecast == '' or 'Y' or 'y':
            for i in range(1,5):
                print('日期:',forecast[i].get('date'))
                print('风向:',forecast[i].get('fengxiang'))
                print('风级:',forecast[i].get('fengli'))
                print('高温:',forecast[i].get('high'))
                print('低温:',forecast[i].get('low'))
                print('天气:',forecast[i].get('type'))
                print('--------------------------')
    print('***********************************')

show_weather(get_weather_data())

运行

------天气查询------
请输入要查询的城市名称:北京
城市: 北京
温度: 0℃ 
感冒: 昼夜温差较大,较易发生感冒,请适当增减衣服。体质较弱的朋友请注意防护。
风向: 西南风
风级: <![CDATA[<3级]]>
高温: 高温 2℃
低温: 低温 -6℃
天气: 多云
日期: 21日星期六
*******************************
是否要显示未来四天天气,是/否:是
日期: 22日星期天
风向: 无持续风向
风级: <![CDATA[<3级]]>
高温: 高温 5℃
低温: 低温 -5℃
天气: 多云
--------------------------
日期: 23日星期一
风向: 东北风
风级: <![CDATA[<3级]]>
高温: 高温 3℃
低温: 低温 -5℃
天气: 多云
--------------------------
日期: 24日星期二
风向: 南风
风级: <![CDATA[<3级]]>
高温: 高温 1℃
低温: 低温 -5℃
天气: 阴
--------------------------
日期: 25日星期三
风向: 北风
风级: <![CDATA[<3级]]>
高温: 高温 6℃
低温: 低温 -5℃
天气: 晴
--------------------------
***********************************

 =================绘制曲线 gisoracle================

# -*- coding: utf-8 -*-

# 功能:查询城市天气
import requests, json, re
from matplotlib import pyplot as plt


# 获取城市代码
def getCityCode(city):
    url = 'http://toy1.weather.com.cn/search?cityname=' + city
    r = requests.get(url)
    if len(r.text) > 4:
        json_arr = json.loads(r.text[1:len(r.text) - 1])
        code = json_arr[0]['ref'][0:9]
        return code
    else:
        return "000000000"


# 获取城市天气信息
def getWeatherInfo(city):
    code = getCityCode(city)
    url = 'http://t.weather.sojson.com/api/weather/city/' + code
    r = requests.get(url)
    info = r.json()
    weather = {}
    if info['status'] == 200:
        weather['城市:'] = info['cityInfo']['parent'] + info['cityInfo']['city']
        weather['时间:'] = info['time'] + ' ' + info['data']['forecast'][0]['week']
        weather['温度:'] = info['data']['forecast'][0]['high'] + ' ' + info['data']['forecast'][0]['low']
        weather['天气:'] = info['data']['forecast'][0]['type']
    else:
        weather['错误:'] = '[' + city + ']不存在!'
    return weather


# 打印天气信息
def printWeatherInfo(weather):
    for key in weather:
        print(key + weather[key])


# 获取未来气温
def getTemperatures(city):
    code = getCityCode(city)
    url = 'http://t.weather.sojson.com/api/weather/city/' + code
    r = requests.get(url)
    info = r.json()
    temperatures = {}
    if info['status'] == 200:
        forecast = info['data']['forecast']
        for i in range(len(forecast)):
            dayinfo = forecast[i]
            high = int(re.findall(r'd+', dayinfo['high'])[0])
            low = int(re.findall(r'd+', dayinfo['low'])[0])
            temperatures[dayinfo['ymd']] = [high, low]
    else:
        temperatures['错误:'] = '[' + city + ']不存在!'
    return temperatures


# 打印未来气温
def printTemperatures(temperatures):
    if '错误:' not in temperatures.keys():
        for key in temperatures:
            print(key + ' 高温:' + str(temperatures[key][0]) + ' 低温:' + str(temperatures[key][1]))

        # 绘制未来气温折线图


def drawTemperatureLineChart():
    temperatures = getTemperatures(city)
    if '错误:' not in temperatures.keys():
        dates = []
        highs = []
        lows = []
        for key in temperatures:
            dates.append(key)
            highs.append(temperatures[key][0])
            lows.append(temperatures[key][1])
        fig = plt.figure(dpi=81, figsize=(5, 4))
        plt.xlabel('Date (YYYY-MM-DD)', fontsize=10)
        plt.ylabel("Temperature (℃)", fontsize=10)
        fig.autofmt_xdate()
        plt.plot(dates, highs, c='red', alpha=0.5)
        plt.plot(dates, lows, c='blue', alpha=0.5)
        plt.show()


city = input('输入城市名:')
printWeatherInfo(getWeatherInfo(city))
printTemperatures(getTemperatures(city))
drawTemperatureLineChart()
原文地址:https://www.cnblogs.com/gisoracle/p/12078118.html