From 8b5b07af1df45804e82076431906314e64f9be9c Mon Sep 17 00:00:00 2001
From: Arthur de Jong <arthur@arthurdejong.org>
Date: Wed, 19 Oct 2022 22:19:22 +0200
Subject: [PATCH] Remove unused import

Fixes 09d595b
---
 stdnum/casrn.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/stdnum/casrn.py b/stdnum/casrn.py
index cb0555bf..f4f1dc6e 100644
--- a/stdnum/casrn.py
+++ b/stdnum/casrn.py
@@ -41,7 +41,7 @@
 import re
 
 from stdnum.exceptions import *
-from stdnum.util import clean, isdigits
+from stdnum.util import clean
 
 
 _cas_re = re.compile(r'^[1-9][0-9]{1,6}-[0-9]{2}-[0-9]$')