- Update to 0.8.0
* Replaced the Python compatbility routines for ``getfullargspec()`` with a
fully vendored version from Python 3.3. Originally, Python was emitting
deprecation warnings for this function in Python 3.8 alphas. While this
change was reverted, it was observed that Python 3 implementations for
``getfullargspec()`` are an order of magnitude slower as of the 3.4 series
where it was rewritten against ``Signature``. While Python plans to
improve upon this situation, SQLAlchemy projects for now are using a simple
replacement to avoid any future issues.
* Pinned minimum version of Python decorator module at 4.0.0.
* Fixed the :func:`.sha1_mangle_key` key mangler to coerce incoming Unicode
objects into bytes.