use exceptions from .exception

Author: jschlyter

src/cryptojwt/key_jar.py

@@ -5,6 +5,7 @@
 
 from requests import request
 
+from .exception import UnknownKeyType, KeyIOError, UpdateFailed
 from .jwe.jwe import alg2keytype as jwe_alg2keytype
 from .jws.utils import alg2keytype as jws_alg2keytype
 from .key_bundle import KeyBundle
@@ -20,18 +21,6 @@
 logger = logging.getLogger(__name__)
 
 
-class KeyIOError(Exception):
-    pass
-
-
-class UnknownKeyType(KeyIOError):
-    pass
-
-
-class UpdateFailed(KeyIOError):
-    pass
-
-
 class KeyJar(object):
     """ A keyjar contains a number of KeyBundles sorted by owner/issuer """