bpo-41431: Optimize dict_merge for copy - #21674

Merged

methane merged 6 commits into

python:masterfrom

methane:copy-by-clone

Aug 4, 2020

Commits on Jul 27, 2020

Use empty key-sharing dict in dict_new
methane
committed
97f2089

Commits on Jul 29, 2020

Use clone_combined_dict in dict_merge
methane
committed
66eceee

Commits on Aug 2, 2020

Fast copy should be compact.
methane
committed
7a54a9d
Add news
methane
committed
09bdf83
clone only when other is just size.
methane
committed
f649b5a

Commits on Aug 3, 2020

rephrase
methane
committed
022df77