python-deprecation 2.0.5-1 (amd64 binary) in ubuntu cosmic

 Deprecation is a library that enables automated deprecations.
 .
 It offers the deprecated() decorator to wrap functions, providing proper
 warnings both in documentation and via Python’s warnings system, as well as
 the deprecation.fail_if_not_removed() decorator for test methods to ensure
 that deprecated code is eventually removed.
 .
 This package contains the Python 2.x module.