Username validation in python

2.25K viewsPython
0 Comments

Username validation in python

Have the function CodelandUsernameValidation(str) take the str parameter being passed and determine if the string is a valid username according to the following rules:

1. The username is between 4 and 25 characters.
2. It must start with a letter.
3. It can only contain letters, numbers, and the underscore character.
4. It cannot end with an underscore character.

If the username is valid then your program should return the string true, otherwise, return the string false.

Farjanul Nayem Answered question July 22, 2022
0

1 Answer

0 Comments 

import string 
def CodelandUsernameValidation(strParam):
  match=string.ascii_letters + string.digits + '_'
   if not all([x in match for x in strParam]):
    return False
   if not (len(strParam) >=4 and len(strParam) <=25):
    return False
   if not strParam[0].isalpha():
    return False
   if strParam[-1:] == '_':
    return False
       return True
 # keep this function call here 
print(CodelandUsernameValidation(input()))

Farjanul Nayem Answered question July 22, 2022
0