【发布时间】:2014-02-01 16:43:36
【问题描述】:
我有一个列表框,我想每分钟左右更新一次。它提取 XML 数据,对其进行解析并自动将其放入列表框中。我已经想出使用 .after 方法,但是在类之外实现它时,我在尝试使其运行的错误之后遇到了错误。我相信我的主要问题只是没有正确调用应用程序,但我可能是错的。这是一些相关的代码。
这都是在主类之外
def refresher(frame):
subreddit=Application.entryVar(Application)
Application.getXML(subreddit)
frame.after(1000,refresher,frame)
main = tk.Tk()
main.wm_title("Readdit")
# main.geometry("350x400")
app = Application(master=main)
# Begins the applications GUI loop
# app.__init__()
refresher(main)
app.mainloop()
这是程序的开始,也是它最终解决所有错误的地方。
class Application(tk.Frame):
print("what about this?")
def __init__(self, master=None):
self.threadTitle = tk.StringVar()
self.threadAuth = tk.StringVar()
self.threadPub = tk.StringVar()
self.threadArtLink = tk.StringVar()
self.threadLink = tk.StringVar()
self.threadImg = tk.StringVar()
self.threadArtLink.set('Click something to display thread info')
self.photo = Image.open("temp.png")
self.photo = self.photo.resize((250,250), Image.ANTIALIAS)
self.threadImage = ImageTk.PhotoImage(self.photo)
self.errMes = tk.StringVar()
if not os.path.exists('Pics'):
os.makedirs('Pics')
# print('Something')
# Intializes tkinter gui framework
tk.Frame.__init__(self, master)
# Packs widgets needed
self.grid()
# Creates the widgets functions
self.createWidgets()
# Intializes the man rss.xml
self.initial()
def createWidgets(self):
# Create entrybox and align to grid
self.send_entry = tk.Entry(self)
self.send_entry.grid(row=0,column=0)
# Create button,allign to grid, get xml
self.change_sub = tk.Button(self,text='Change Subreddit',padx=5, pady=5, command=lambda :self.entryVar())
这是完整的错误
Traceback (most recent call last):
File "S:/Projects/xmlParser.py", line 306, in <module>
refresher(main)
File "S:/Projects/xmlParser.py", line 296, in refresher
subreddit=Application.entryVar(Application)
File "S:/Projects/xmlParser.py", line 290, in entryVar
rawInput=self.createWidgets(self).send_entry.get()
File "S:/Projects/xmlParser.py", line 40, in createWidgets
self.send_entry = tk.Entry(self)
File "C:\Python33\lib\tkinter\__init__.py", line 2506, in __init__
Widget.__init__(self, master, 'entry', cnf, kw)
File "C:\Python33\lib\tkinter\__init__.py", line 2068, in __init__
BaseWidget._setup(self, master, cnf)
File "C:\Python33\lib\tkinter\__init__.py", line 2046, in _setup
self.tk = master.tk
AttributeError: type object 'Application' has no attribute 'tk'
【问题讨论】:
-
方法
Application.getXML是做什么的? -
它从站点中提取 XML 并解析它,但它需要传递一个字符串变量才能正常运行
标签: python tkinter attributeerror