Python tkinter TypeError:类型为';非类型';没有len()
我已经做了一个程序,当你可以决定在一个规模,多少字,你想要的。当我在天平上取1,然后尝试在标签上打印时,我得到错误:Python tkinter TypeError:类型为';非类型';没有len(),python,user-interface,tkinter,Python,User Interface,Tkinter,我已经做了一个程序,当你可以决定在一个规模,多少字,你想要的。当我在天平上取1,然后尝试在标签上打印时,我得到错误: Exception in Tkinter callback Traceback (most recent call last): File "C:\Python33\lib\tkinter\__init__.py", line 1475, in __call__ return self.func(*args) File "C:\Users\Eduard\Desktop\Zeugs
Exception in Tkinter callback
Traceback (most recent call last):
File "C:\Python33\lib\tkinter\__init__.py", line 1475, in __call__
return self.func(*args)
File "C:\Users\Eduard\Desktop\Zeugs\python\test.py", line 69, in ok3
label['text']=random.choice(WORDS)
File "C:\Python33\lib\random.py", line 249, in choice
i = self._randbelow(len(seq))
TypeError: object of type 'NoneType' has no len()
代码如下:
import tkinter as tk
from tkinter import *
import random
from functools import partial
class SampleApp(tk.Tk):
def __init__(self, *args, **kwargs):
tk.Tk.__init__(self, *args, **kwargs)
container= tk.Frame(self)
container.pack(side="top", fill="both", expand=True)
container.grid_rowconfigure(0, weight=1)
container.grid_columnconfigure(0, weight=1)
self.frames={}
for F in (mode2, scale1):
frame= F(container, self)
self.frames[F]=frame
frame.grid(row=0, column=0, sticky="nsew")
self.show_frame(mode2)
def show_frame(self, c):
frame=self.frames[c]
frame.tkraise()
class mode2(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
def antmenge(self):
label1["text"]="Mögliche Antworten: " \
+ str(antmengen.get()) + " "
label1=tk.Label(self, text="Mögliche Antworten: 0 Wörter", width=25)
label1.pack()
antmengen=IntVar()
antmengen.set(0)
antm=Scale(self, width=20, length=200, orient="vertical", from_=0, to=20,
resolution=1, tickinterval=10, label="Wörter", command=antmenge(self),
variable=antmengen)
antm.pack()
def abfrage():
if antmengen.get()==1:
button3=Button(self, text="push again", command=lambda: controller.show_frame(scale1))
button3.pack()
button2=tk.Button(self, text="push", command=abfrage)
button2.pack()
class scale1(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
label1=Label(self, text="Wort1")
label1.pack()
wort1auf=Entry(self)
wort1auf.pack()
label=tk.Label(self, text=" ")
label.pack()
a=label.configure(text=(wort1auf.get()))
def ok3(label):
WORDS=(a)
label['text']=random.choice(WORDS)
button1=tk.Button(self, text="push", command=partial(ok3, label))
button1.pack()
if __name__== "__main__":
app=SampleApp()
app.mainloop()
对不起,如果我的英语不好。好的
所以开始吧
a=label.configure(text=(wort1auf.get()))
def ok3(label):
WORDS=(a)
label['text']=random.choice(WORDS)
你犯错误的原因是,a和单词都是零
因为label.configure(…)返回None
我认为单词应该是一个单词列表,可以从中选择。我不知道你的“a”是什么意思,你想用输入词填充它吗?如果是这样的话,WORDS=(a)就可以了,但是你必须把“a”移到“ok3”里面
第二。它应该检索输入的值
def ok3(label):
WORDS=(wort1auf.get()) # this will choose a random letter out of your input.
#WORDS=(wort1auf.get(),) # this will choose a the input word, since it is the only word inside the tuple.
WORDS=(a)
label['text']=random.choice(WORDS)
希望这有帮助
LG
Daniel请回答您的问题并包含回溯的全文。您是否不理解错误消息,或者不理解对象为什么为
无?请使用打印查看您在变量a
中分配给单词的内容。感谢您的快速回答,这可能是重复的。现在理解它对我有很大帮助。我还会说德语,如果你有问题,可以用德语问我;)
def ok3(label):
WORDS=(wort1auf.get()) # this will choose a random letter out of your input.
#WORDS=(wort1auf.get(),) # this will choose a the input word, since it is the only word inside the tuple.
WORDS=(a)
label['text']=random.choice(WORDS)