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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

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

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

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

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Opengraph URL: https://github.com/python/cpython/pull/21669

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Use empty key-sharing dict in dict_newhttps://github.com/python/cpython/pull/21669/commits/97f2089e7b730ad49af3e495264eb2e2f99002db
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