Library
-------
+- UserDict is now a new-style class.
+
- Issue #7610: Reworked implementation of the internal
:class:`zipfile.ZipExtFile` class used to represent files stored inside
an archive. The new implementation is significantly faster and can
Library
-------
-- UserDict is now an new-style class.
-
- Issue #6963: Added "maxtasksperchild" argument to multiprocessing.Pool,
allowing for a maximum number of tasks within the pool to be completed by
the worker before that worker is terminated, and a new one created to