From eae1dd298e56b565af394d6fc85ead89fbbf8565 Mon Sep 17 00:00:00 2001
From: Arthur de Jong <arthur@arthurdejong.org>
Date: Mon, 15 Aug 2022 13:59:26 +0200
Subject: Use str.zfill() for padding leading zeros

---
 stdnum/nz/ird.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'stdnum/nz')

diff --git a/stdnum/nz/ird.py b/stdnum/nz/ird.py
index 0e9307a..6bd313b 100644
--- a/stdnum/nz/ird.py
+++ b/stdnum/nz/ird.py
@@ -66,7 +66,7 @@ def calc_check_digit(number):
     primary_weights = (3, 2, 7, 6, 5, 4, 3, 2)
     secondary_weights = (7, 4, 3, 2, 5, 2, 7, 6)
     # pad with leading zeros
-    number = (8 - len(number)) * '0' + number
+    number = number.zfill(8)
     s = -sum(w * int(n) for w, n in zip(primary_weights, number)) % 11
     if s != 10:
         return str(s)
-- 
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