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Title: bpo-41431: Optimize dict_merge for copy by methane · Pull Request #21669 · python/cpython · GitHub

Open Graph Title: bpo-41431: Optimize dict_merge for copy by methane · Pull Request #21669 · python/cpython

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Description: https://bugs.python.org/issue41431

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bpo-41431: Optimize dict_merge for copy https://github.com/python/cpython/pull/21669/files#top
Show all changes 3 commits https://github.com/python/cpython/pull/21669/files
97f2089 Use empty key-sharing dict in dict_new methane Jul 27, 2020 https://github.com/python/cpython/pull/21669/commits/97f2089e7b730ad49af3e495264eb2e2f99002db
cf4f61c Add dict_copy2 methane Jul 28, 2020 https://github.com/python/cpython/pull/21669/commits/cf4f61ce50e07f7ccd3aef991647050c8da058f9
4ac880b Remove clone_combined_dict methane Jul 29, 2020 https://github.com/python/cpython/pull/21669/commits/4ac880baed561b8393d44ffe9629cb5129c8c60d
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