好的,我有一个问题。我正在尝试制作一个GUI Hex转换器并且我继续得到相同的错误。我对Tkinter没有经验,所以有人可以帮助我吗?这是代码:
from Tkinter import *
def getNum():
hex1 = e1.get()
dec1 = int(hex1, 16)
ol.configure(text=dec1)
root = Tk()
introLabel = Label(root, text='Input Hex Code: ').pack()
e1 = Entry(root)
e1.pack()
e1.focus_set()
inputButton = Button(root, text='Submit Hex Code', command=getNum).pack()
ol = Label(root, text='Hex Code will appear here.').pack()
root.mainloop()
我一直收到这个错误:
Exception in Tkinter callback
Traceback (most recent call last):
File "C:\Python27\lib\lib-tk\Tkinter.py", line 1470, in __call__
return self.func(*args)
File "C:/Users/The Lodges/Desktop/Python/test.py", line 6, in getNum
ol.configure(text=dec1)
AttributeError: 'NoneType' object has no attribute 'configure'
答案 0 :(得分:3)
.pack()
的返回值不是小部件,而是None
。
更改此代码:
ol = Label(root, text='Hex Code will appear here.').pack()
对此:
ol = Label(root, text='Hex Code will appear here.')
ol.pack()
这将使ol
'指向'标签。