爬一只猫

import urllib.request
import easygui as g

while True:
    try:
        msg = "Catch that Pussy Cat!"
        title = "~ meow ~"
        fieldName = ["Width", "Height"]
        fieldValue = []
        fieldValue = g.multenterbox(msg, title, fieldName)
        if fieldValue != None:
            
            width = fieldValue[0]
            height = fieldValue[1]

            response = urllib.request.urlopen("http://placekitten.com/g/" + width + "/" + height)
            cat_image = response.read()

            saveDir = g.filesavebox(msg, title, defalut = "Pussy_cat.jpg", filetypes = ["*.jpg"])
            if ".jpg" not in saveDir:
                saveDir = saveDir + ".jpg"
            
            with open(saveDir, "wb") as f:
                f.write(cat_image)
            
    except:
        break