Misc/NEWS.d/next/Core and Builtins/2019-03-11-22-30-56.bpo-30040.W9z8X7.rst - external/github.com/python/cpython - Git at Google

 New empty dict uses fewer memory for now.  It used more memory than empty
 dict created by ``dict.clear()``.  And empty dict creation and deletion
 is about 2x faster.  Patch by Inada Naoki.
	New empty dict uses fewer memory for now. It used more memory than empty
	dict created by ``dict.clear()``. And empty dict creation and deletion
	is about 2x faster. Patch by Inada Naoki.