diff options
Diffstat (limited to 'mailman/chains/base.py')
| -rw-r--r-- | mailman/chains/base.py | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/mailman/chains/base.py b/mailman/chains/base.py index f4e70c303..bcd946b40 100644 --- a/mailman/chains/base.py +++ b/mailman/chains/base.py @@ -17,6 +17,8 @@ """Base class for terminal chains.""" +from __future__ import absolute_import, unicode_literals + __metaclass__ = type __all__ = [ 'Chain', @@ -78,7 +80,8 @@ class Chain: implements(IMutableChain) def __init__(self, name, description): - assert name not in config.chains, 'Duplicate chain name: %s' % name + assert name not in config.chains, ( + 'Duplicate chain name: {0}'.format(name)) self.name = name self.description = description self._links = [] |