validating user input to text only and integer only

Question

i have searched for a simple, non complicated answer on how to ensure that the user is asked again if they enter anything other than text for 1 and an integer for 2.

when entering these input variables, however i have only found complicated solutions that my teacher wont acccept.

is it possible if anyone can provide me with simple solutions on how to validate these variables. so far all i know how to validate is to use "while not in" functions, which only works for specific options. I am new to python, so please explain in a simple manner. thanks! :)

1-studentname=input("what is your name?:") 
2-print("what is 10+10?:")
3-studentanswer=int(input("insert answer:"))

score 0 · Answer 1 · answered Mar 17 '16 at 20:38

0

You can use a while loop with if , else in it

while(true):
   t = int(input());
   if t == 1:
     # do whatever --> break at the end
   else if t == 2:
     # do whatever ---> break at the end
   else:
     continue

answered Mar 17 '16 at 20:38

Priyansh Goel

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score 0 · Answer 2 · answered Mar 17 '16 at 20:41

You can use the .isalpha and .isdigit method. For example,

studentname=input("what's your name) ?
studentname.isalpha()

That checks whether the string consists of alphabetic characters only. Both .isalpha and .isdigit return boolean, so you can use an if condition then.

validating user input to text only and integer only

2 Answers2