including:
- simplify type hierarchy, merging the frozen types into the base types
- upgrade to latest hypothesis (3.38.0)
- use Reversible for order-sensitive FrozenOrderedBidict.__eq__
- fix bug where bidict._on_dup_kv was not set to ON_DUP_VAL as documented
- drop leading underscore from attrs that should be public
- improve setup.py/metadata
- rename DuplicationBehavior -> DuplicationPolicy
- drop ON_DUP_VAL duplication policy in preference to just using None
- reduce ordered bidict memory usage and speed up copy
- .travis.yml and setup.py tweaks
- add regression tests for -O bug and document fix
- Make OrderedBidict equality comparison order-sensitive in more cases.
- Add bidict.BidictBase.ordered class attribute.
- Replacing OrderedBidictBase._should_compare_order_sensitive()
with OrderedBidictBase.should_compare_order_sensitive_to().
- Revert the optimizations in v0.13.0 to make FrozenOrderedBidict instances
that have the same items in different order have different hash values.
- Remove FrozenBidictBase.
- Remove frozenbidict._USE_ITEMSVIEW_HASH and
frozenorderedbidict._HASH_NITEMS_MAX
- support Python 3.6, refactor CI/test setup, increase test coverage
- refactor BidirectionalMapping, BidictBase, OrderedBidictBase,
FrozenBidictBase, and subclasses
- move frozenorderedbidict into _frozen and looseorderedbidict into _loose
- register bidict as a virtual subclass of MutableMapping rather than
inheriting from it directly. This makes it clearer that it does not use any
of the concrete generic methods that MutableMapping provides.
- improve performance and flexibility of frozenbidict and
frozenorderedbidict hashing
- docs, including new type-hierarchy.png diagram
- rm unused imap, ifilter, izip_longest from compat, add PYPY
- update to latest versions of dependencies
- restore benchmarking on travis