From ebc9e4fc7466da61372f71eea74c8bd7cd4fae1f Mon Sep 17 00:00:00 2001
From: Jakob Schlyter <jakob@kirei.se>
Date: Wed, 13 May 2020 21:03:36 +0200
Subject: [PATCH] close file after access

---
 src/cryptojwt/key_bundle.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/cryptojwt/key_bundle.py b/src/cryptojwt/key_bundle.py
index efedd85c..f4d7b0dd 100755
--- a/src/cryptojwt/key_bundle.py
+++ b/src/cryptojwt/key_bundle.py
@@ -290,7 +290,8 @@ def do_local_jwk(self, filename):
 
         :param filename: Name of the file from which the JWKS should be loaded
         """
-        _info = json.loads(open(filename).read())
+        with open(filename) as input_file:
+            _info = json.load(input_file)
         if 'keys' in _info:
             self.do_keys(_info["keys"])
         else: