afsfds

files/routes/login.py

@@ -360,6 +360,10 @@ def sign_up_post(v):
 
 	if email: send_verification_email(new_user)
 
+	existing_account = get_user(username, graceful=True)
+	if existing_account:
+		return signup_error("An account with that username already exists.")
+
 	g.db.commit()
 
 	check_for_alts(new_user.id)