New kata-56a3f08aa9a6cc9b75000023

[DavidAdamsDesign]

CodeWars Python Solutions

---

Simple validation of a username with regex

Write a simple regex to validate a username. Allowed characters are:

• lowercase letters,
• numbers,
• underscore

Length should be between 4 and 16 characters (both included).

---

Given Code

def validate_usr(username):
    #your code here

---

Solution

def validate_usr(username):
  return re.match('^[a-z0-9_]{4,16}$', username) != None

---

See on CodeWars.com

[DavidAdamsDesign]

8kyuKatas