Question

How to check if a string has only digit letters in Python

Answer 1

import string  

def only_digit_letters(s):  
    for ch in s:  
        if ch not in string.digits:  
            return False
    return True

s = "92823"
if only_digit_letters(s):  
    print ("yes");
else:
    print ("no");


s = "92 82 3"
if only_digit_letters(s):  
    print ("yes");
else:
    print ("no");
    
    
s = "3.14"
if only_digit_letters(s):  
    print ("yes");
else:
    print ("no");
    

    
'''
run:

yes
no
no

'''

 

70+ SQL courses for beginners and professionals