- update to 3.7.0:
* Dropped support for Python 3.4
* Added PySide2 support (PR by Abdulla Ibrahim)
* Pinned ``tzlocal`` to a version compatible with pytz
* Ensured that jitter is always non-negative to prevent triggers from firing
more often than intended
* Changed ``AsyncIOScheduler`` to obtain the event loop in ``start()``
instead of ``__init__()``,
to prevent situations where the scheduler won't run because it's using a
different event loop than then one currently running
* Made it possible to create weak references to ``Job`` instances
* Made the schedulers explicitly raise a descriptive ``TypeError`` when serialization is attempted
* Fixed Zookeeper job store using backslashes instead of forward slashes for paths
on Windows
* Fixed deprecation warnings on the MongoDB job store and increased the minimum PyMongo
* Fixed ``BlockingScheduler`` and ``BackgroundScheduler`` shutdown hanging after the user has
erroneously tried to start it twice
* Fixed memory leak when coroutine jobs raise exceptions
* Fixed inability to schedule wrapped functions with extra arguments when the wrapped function
cannot accept them but the wrapper can (original PR by Egor Malykh)
* Fixed potential ``where`` clause error in the SQLAlchemy job store when a subclass uses more than
one search condition
* Fixed a problem where bound methods added as jobs via textual references were called with an
unwanted extra ``self`` argument (PR by Pengjie Song)
* Fixed ``BrokenPoolError`` in ``ProcessPoolExecutor`` so that it will automatically replace the
broken pool with a fresh instance