Как предотвратить сбой Tkinter, когда мой код теряет интернет - PullRequest
0 голосов
/ 30 июня 2018

Несколько месяцев назад я написал магический зеркальный код в tkinter. Когда я сделал это, он смог продолжить без проблем. Из-за проблем с драйверами, я не уверен, что это мой последний продукт (я также вырезал Календарь для этого), но, несмотря на это, теперь он обычно не отвечает, когда я отключаю Интернет. Как я могу заставить его работать гладко? Я понимаю, что это довольно большой кусок и ценю любую помощь, которую я могу получить.

""" MagicMirror
    Includes clock, and weather
"""

from __future__ import print_function
from apiclient.discovery import build
import calendar
from datetime import datetime, time, timedelta
from httplib2 import Http
import json
from oauth2client import file, client, tools
import PIL.Image, PIL.ImageTk
from PIL import ImageTk, Image
from platform import system
import requests
from tkinter import *


class GlobalVars:
    def __init__(self, is_Celcius, postalCode):
        self.celcius = is_Celcius
        self.zipCode = postalCode


#----------time----------
#delete seconds later


class Clock(Frame):
    def __init__(self, parent):
        Frame.__init__(self, parent, bg = "black")

        self.time = ""
        self.day = ""
        self.time_Label = Label(self, text = self.time, font =('Helvetica', 70, "bold"), fg = "white", bg = "black")
        self.time_Label.pack(anchor = E)
        self.day_Label = Label(self, text = self.day, font = ("Helvetica", 20, "italic"), fg = "white", bg = "black")
        self.day_Label.pack(side = RIGHT, anchor = E)
        self.tick()

    def tick(self):
        self.time_Label.config(text = str(datetime.now())[11:19])
        date = str(datetime.now())
        currentDay = calendar.day_name[datetime.strptime(str(datetime.now())[:10], "%Y-%m-%d").weekday()]\
        + ", " + calendar.month_name[int(date[5:7])] + " " + date[8:10]
        if self.day != currentDay:
            self.day = currentDay
            self.day_Label.config(text = self.day)
        print("Clock check")
        self.time_Label.after(1000, self.tick)


#--------weather---------


# allow for easy installment of multiple cities (through list of zipCodes?)
class Weather(Frame):
    def __init__(self, parent, celc, zipCode):
        Frame.__init__(self, parent, bg = "black")
        self.locations = list()

        if system() == "Darwin":  # MAC
            self.path = "./icons/"
        elif system() == "Linux":
            self.path = "/home/pi/Documents/MagicMirror_testing/icons/"
        else:  # PC
            self.path = "D:\MPZinke\Drive\Workspace\MagicMirror\icons\\"
        self.pathDict = {"broken clouds" : "cloudy.jpg", "error" : "error.jpg", "few clouds" : "partCloudy.jpg", "foggy" : "foggy.jpg", 
                         "icey" : "icey.jpg", "light rain" : "rain.jpg", "mist" : "foggy.jpg", "overcast clouds" : "cloudy.jpg", 
                         "scattered clouds" : "partCloudy.jpg", "rain" : "rain.jpg", "scattered clouds" : "partCloudy.jpg", 
                         "snow" : "snow.jpg", "clear sky" : "sunny.jpg", "tStorms" : "tStorms.jpg", "wind" : "windy.jpg"}

        for loc in zipCode:
            self.locations.append(Location(self, celc, loc))
        self.weatherLoop()


    def weatherLoop(self):
        self.weatherIcons = list()
        for i in range(len(self.locations)):
            self.locations[i].update()

            try: path = self.path + self.pathDict[self.locations[i].weather[0]]
            except:  # handles unkown dictionary entries
                path = self.path + self.pathDict["error"]
                print(self.locations[i].weather[0])

            self.weatherIcons.append(PIL.ImageTk.PhotoImage(PIL.Image.open(path)))
            self.locations[i].labels[0].config(image = self.weatherIcons[i])

            self.locations[i].labels[4].pack(side = TOP, anchor = NW)
            self.locations[i].currentFrame.pack(side = TOP, anchor = NW)
            orientation = [LEFT, RIGHT, TOP, TOP]
            for j in range(len(self.locations[i].labels)-1):
                self.locations[i].labels[j].pack(side = orientation[j], anchor = NW)    

        print("Weather check")
        self.after(5000, self.weatherLoop)




class Location(Frame):
    def __init__(self, parent, celc, zipCode):
        Frame.__init__(self, parent, bg = "black")
        self.zipCode = str(zipCode)
        self.celc = celc

        self.labels = []
        self.currentFrame = Frame(parent, background = "black")

        parents = (self.currentFrame, self.currentFrame, parent, parent, parent)
        for i in parents:
            self.labels.append(Label(i, bg = "black", anchor = NW))

    def update(self):
        self.weather = organizeWeather(self.celc, self.zipCode)
        tempChar = "° F"
        if self.celc: tempChar = "° C"

        self.labels[1].config(text = self.weather[1] + tempChar, font = ("Helvetica", 45, "bold"), fg = "white")
        self.labels[2].config(text = "High: " + self.weather[2] + tempChar, font = ("Helvetica", 20, "bold"), fg = "white")
        self.labels[3].config(text = "Low: " + self.weather[3] + tempChar, font = ("Helvetica", 20, "bold"), fg = "white")
        self.labels[4].config(text = self.weather[4], font = ("Helvetica", 30, "underline"), fg = "white")  


#--------function--------


def getWeather(zipCode):
    address = "http://api.openweathermap.org/data/2.5/weather?zip=" + zipCode + "&appid=556f1331999ad8f3fedec7ba906ebb54"
    try: 
        weatherData = requests.get(address, timeout=6.0).json()
    except requests.ConnectionError: 
        weatherData = None
        print("Could not get weather", datetime.today())
    return weatherData


def organizeWeather(celc, zipCode):
    temp = []
    data = getWeather(zipCode)
    print(zipCode)
    if data:
        temp.append(data["weather"][0]["description"])  # (ie clear, cloudy, etc)
        temp.append(toCelcius(celc, data["main"]["temp"]))  # current temp
        temp.append(toCelcius(celc, data["main"]["temp_max"]))  # high
        temp.append(toCelcius(celc, data["main"]["temp_min"]))  # low
        temp.append(data["name"])
        return temp
    return ["error", "", "", "", ""]


def toCelcius(celcius, temp):
    temp = temp - 273.15
    if not celcius:
        temp = temp * 1.8 + 32
    return str(int(temp))



class TextWidget(Frame):
    def __init__(self, parent, words):
        Frame.__init__(self, parent, bg = "black")

        self.title1 = Label(self, text = words, font = ("Helvetica", 20, "bold"), fg = "white", bg = "black")
        self.title1.pack(side = LEFT, anchor = E)


class Startscreen:
    def __init__(self):
        # setup window
        self.tk = Tk()
        self.tk.title("MagicMirror")
        self.tk.configure(background = 'black')
        self.tk.geometry('1024x786')
        self.tk.resizable(500, 500)  # *

        self.constants = GlobalVars(True, ["77077"])

        # assign frames
        self.leftTop = Frame(self.tk, background = "black", width=500, height=500)
        self.rightTop = Frame(self.tk, background = "black", width=350, height=100)
        self.rightBottom = Frame(self.tk, background = "black", width=150, height=650)
        self.leftTop.pack(side = LEFT, fill = Y, expand = NO)
        self.rightTop.pack(side = TOP, expand = NO, anchor = NE)
        self.rightBottom.pack(side = RIGHT, fill = Y, expand = NO)

        # clock
        self.clock = Clock(self.rightTop)
        self.clock.pack(side = RIGHT, anchor = N, padx = 10, pady = 10, expand = NO)

        # weather
        self.weather = Weather(self.leftTop, self.constants.celcius, self.constants.zipCode)
        self.weather.pack(side = LEFT, anchor = NW)


if __name__ == "__main__":
    window = Startscreen()
    window.tk.mainloop()

1 Ответ

0 голосов
/ 30 июня 2018

Вы можете продолжать проверять интернет, используя следующую, а затем, если у вас есть интернет, вы можете выполнить код. Если нет, вы можете сообщить пользователю об отсутствии соединения.

import socket
REMOTE_SERVER = "www.google.com"
def is_connected(hostname):
  try:
    host = socket.gethostbyname(hostname)
    s = socket.create_connection((host, 80), 2)
    return True
  except:
     pass
  return False
is_connected(REMOTE_SERVER)
...