Log Message:
py-peewee: updated to 3.7.0

3.7.0:

Backwards-incompatible changes
* Pool database close_all() method renamed to close_idle() to better
  reflect the actual behavior.
* Databases will now raise InterfaceError when connect() or close() are
  called on an uninitialized, deferred database object.

New features
* Add methods to the migrations extension to support adding and dropping table
  constraints.
* Add Model.bulk_create() method for bulk-inserting unsaved model instances.
* Add close_stale() method to the connection pool to support closing stale
  connections.
* The FlaskDB class in playhouse.flask_utils now accepts a model_class
  parameter, which can be used to specify a custom base-class for models.

Bugfixes
* Parentheses were not added to subqueries used in function calls with more
  than one argument.
* Fixed bug when attempting to serialize many-to-many fields which were created
  initially with a DeferredThroughModel.
* Fixed bug when using the Postgres ArrayField with an array of BlobField.
* Allow Proxy databases to be used as a context-manager.
* Fixed bug where the APSW driver was referring to the SQLite version from the
  standard library sqlite3 driver, rather than from apsw.
* Reflection library attempts to wrap server-side column defaults in quotation
  marks if the column data-type is text/varchar.
* Missing import in migrations library, which would cause errors when
  attempting to add indexes whose name exceeded 64 chars.
* When using the Postgres connection pool, ensure any open/pending transactions
  are rolled-back when the connection is recycled.
* Even *more* changes to the setup.py script. In this case I've added a
  helper function which will reliably determine if the SQLite3 extensions can
  be built. This follows the approach taken by the Python YAML package.