无法从带有pypng的url创建图像

Question

我对pypng非常陌生，并且使用python本身，我一直在开发一个image程序，该程序应该从openweathermap.org获取图像。我用谷歌搜索了几个小时，似乎找不到解决我收到的错误的方法。代码：

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。我一直得到的错误是：

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

任何帮助都非常感谢，非常感谢。

Answer 1

你把你的字典叫做列表有什么原因吗？

    pictureCode = List["icon"]

不管怎么说，你使用pypng有什么特别的原因吗？你可以直接走

    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weatherIcon？你真的应该发布你所有的代码，因为这会让其他试图帮助你的人更容易。