我正在尝试删除tkinter中的一条消息。你能帮我弄一下吗?
Label(root,text="Password : ").place(x=X+0,y=Y+170,in_=root) #password to registor
reg_password=StringVar()
e5 = Entry(root,textvariable=reg_password).place(x=X+65,y=Y+170,in_=root)
m=Message(root,text='',fg="red").place(x=X+0,y=Y+250,in_=root)
def sign_up():
global m
regpass = "^[A-Z][\w(!@#$%^&*_+?)+]{8,}$"
if not (re.search(regpass,reg_password.get())):
m.config(text='''->Spaces and empty sets are not allowed.
\n ->First character should be a captial letter.
\n ->Password must be greater than 8 character and must contain a special character.''')
else:
pass如果第一次输入的密码错误,将打印消息;第二次,如果密码正确,消息将被删除
但是它显示了错误
AttributeError: 'NoneType' object has no attribute 'config'发布于 2019-07-22 23:58:25
place()方法不返回值,因此语句:
m=Message(root,text='',fg="red").place(x=X+0,y=Y+250,in_=root) 将值None赋给变量m。
将其拆分成两个语句:
m = Message(root, text='', fg="red")
m.place(x=X+0, y=Y+250, in_=root) https://stackoverflow.com/questions/57149587
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