如何在python中检查从GUI输入的字符串的有效性

Question

I'm taking the input for a name in Tkinter, but it's giving an error when I want to check if only alphabets are entered:

t1=Label(text="Name:")
t1.place(x=40,y=100)
name=Entry(t)
if name.isalpha():
    print("Valid")
else:
    print("Invalid")

How do I check the validity of the input?

Answer 1

You want to check the value of your input field. Use name.get().isalpha() .

name is just a instance of Entry. You want the value of this entry field. You can get this by calling get() on the Entry instance.

isalpha() is defined on str ings only.