diff options
| -rw-r--r-- | cryptography/primitives/hashes.py | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/cryptography/primitives/hashes.py b/cryptography/primitives/hashes.py index d0f4c226..a87d09e5 100644 --- a/cryptography/primitives/hashes.py +++ b/cryptography/primitives/hashes.py @@ -13,12 +13,16 @@ from __future__ import absolute_import, division, print_function +import abc + import binascii +import six + from cryptography.bindings import _default_api -class BaseHash(object): +class BaseHash(six.with_metaclass(abc.ABCMeta)): def __init__(self, api=None, ctx=None): if api is None: api = _default_api |