how to check if a input is integar or string in tkinter , python?

Question

so if you add a entry to window in Tkinter , user can write numbers , letters and symbols in it. how can i check if the input from entry is number and its not a letter or symbol?

There are functions on string to check that: .isnumeric(), .isdigit(). — acw1668
– acw1668, Commented Mar 3, 2022 at 7:08

Jai Sloper · Accepted Answer · 2022-03-03 06:39:16Z

2

you could do something like this

s = # whatever the user input
s_is_an_int = True

try: 
    int(s)
    s_is_an_int = True
except ValueError:
    s_is_an_int = False

hope this helps :))

edited Mar 3, 2022 at 6:39

answered Mar 3, 2022 at 6:29

Jai Sloper

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1 Comment

Jai Sloper Over a year ago

ok let me know what happens

user4136999 · Accepted Answer · 2023-03-24 02:29:13Z

Try this: Snippet:

def check_user_input(input):
    try:
        # Convert it into integer
        val = int(input)
        print("Input is an integer number. Number = ", val)
    except ValueError:
        try:
            # Convert it into float
            val = float(input)
            print("Input is a float  number. Number = ", val)
        except ValueError:
            print("No.. input is not a number. It's a string")


input1 = input("Enter your Age ")
check_user_input(input1)

input2 = input("Enter any number ")
check_user_input(input2)

input2 = input("Enter the last number ")
check_user_input(input2)

Result:

Enter your Age 25
Input is an integer number. Number =  25
Enter any number Parsa Ad
No.. input is not a number. It's a string
Enter the last number

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