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我对 pypng 和 python 本身非常陌生，我一直在研究一个天气 api 程序，该程序应该从 openweathermap.org 获取图像。我已经用谷歌搜索了几个小时，似乎无法找到解决我遇到的错误的方法。编码：

import tkinter
import io
from tkinter import font
import tkinter as tk
import time
import urllib.request
import json
import socket
from threading import Thread
import base64
import png


socket.getaddrinfo('localhost', 8080)


class Window(tk.Frame):
    def __init__(self, master=None):
        tk.Frame.__init__(self, master)               
        self.master = master

def update_timeText():
    current = time.strftime("%H:%M")
    seconds = time.strftime(":%S")
    currentDate=time.strftime("%a %e %B, %Y")
    timeText1.configure(text=current, fg='white', background='black')
    timeText1.grid(row=0,column=0, sticky='NW', padx=15, pady=15)
    timeText2.configure(text=seconds, fg='white', background='black')
    timeText2.grid(row=0, column=1, pady=17, sticky='NW')
    Date.configure(text=currentDate, fg='white', background='black')
    Date.grid(row=0, column=0, columnspan=3, sticky='NW', padx=20, pady=124, rowspan=2)
    root.after(1000, update_timeText)

def update_Weather():
    temperatureData = weatherData["main"]["temp"]
    temperature = int(temperatureData) , "°C"
    weather = weatherData["weather"]
    List1 = weather[0]
    pictureCode = List1["icon"]
    picUrl = "http://openweathermap.org/img/w/"+pictureCode+".png"
    pictureData = png.Reader(file = urllib.request.urlopen(picUrl))
    picturePNG = pictureData.read()
    picture = png.Writer(picturePNG)
    print(picture)
    weatherIcon.configure(image=picture)
    weatherIcon.grid(row=3)
    weatherTemperature.configure(text=temperature, fg='white', background='black')
    weatherTemperature.grid(row=3, column=2)
    root.after(100000, update_Weather)

root = tk.Tk()
root.configure(background='black')
root.title('Smart Mirror')
timeText1 = tk.Label(root, text="", font=("Opinio", 90, "bold"))
timeText2 = tk.Label(root, text="", font=("Opinio", 45, "bold"))
Date=tk.Label(root, text="", font=("Roboto Condensed", 24))
weatherAPI=urllib.request.urlopen("https://api.openweathermap.org/data/2.5/weather?q=Mostar,070&APPID=d9c3aca43db397f6c24189c7c52948f9&units=metric")
weatherData=json.load(weatherAPI)
weatherTemperature=tk.Label(root, text="", font=("Roboto Condensed", 24))
weatherIcon=tk.Label(root, image="")
Thread(target=update_Weather).start()
Thread(target=update_timeText).start()
app = Window(root)
root.mainloop()

我从 JSON 数据中获取图标代码并使用它来创建 url，weatherIcon 是一个标签。我不断收到的错误是：

png.ProtocolError: ProtocolError: width and height must be integers

非常感谢任何帮助，非常感谢。

4

1 回答 1

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你有什么理由称你的字典为列表吗？

    pictureCode = List["icon"]

无论如何，您出于特定原因使用 pypng 吗？你可以去

    import requests
    from PIL import Image
    from io import BytesIO

    #Assuming this is actually a dictionary
    picId = dict["key"]
    image_url = "http://openweathermap.org/img/w/"+picId+".png"
    r = requests.get(image_url)

    i = Image.open(BytesIO(r.content))
    i.save("weather_icon.png")

什么是天气图标？你真的应该发布你所有的代码，因为它让其他试图帮助你的人更容易。

于 2019-03-12T19:02:34.033 回答