Fails to apply for all testcases used here

[Kamal Sharma]

Expected Behavior

validate_user(".blue.kale", 3) -> should be False
validate_user("_red_quinoa", 4) -> should be False

Actual Behavior

validate_user(".blue.kale", 3) -> previously returning True
validate_user("_red_quinoa", 4) -> previously returning True

Steps to Reproduce the Problem

1. username[0]=='.' or username[0]==''
   above portion if removed from code should produce the same result for any string passed to validate_user( ) - function and string passed to this func. as parameter should start with "." or ""

Specifications

• Version: python interpreter 3.8.4
• Platform: linux/ window