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Closes: #1 #37083

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Closes: #1 #37083

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7 changes: 5 additions & 2 deletions Course3/Lab4/validations.py
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Original file line number Diff line number Diff line change
Expand Up @@ -16,9 +16,12 @@ def validate_user(username, minlen):
if not re.match('^[a-z0-9._]*$', username):
return False
# Usernames can't begin with a number
if username[0].isnumeric():
if username[0].isnumeric() or username[0] in {'.', '_'}:
return False
return True



print(validate_user("blue.kale", 3)) # True
print(validate_user(".blue.kale", 3)) # Currently True, should be False
print(validate_user("red_quinoa", 4)) # True
print(validate_user("_red_quinoa", 4)) # Currently True, should be False