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Title: gh-138682: Add symmetric difference to Counter by rhettinger · Pull Request #138766 · python/cpython · GitHub

Open Graph Title: gh-138682: Add symmetric difference to Counter by rhettinger · Pull Request #138766 · python/cpython

X Title: gh-138682: Add symmetric difference to Counter by rhettinger · Pull Request #138766 · python/cpython

Description: Issue: gh-138682 📚 Documentation preview 📚: https://cpython-previews--138766.org.readthedocs.build/

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22a28b9 gh-138682: Add symmetric difference to Counter rhettinger Sep 10, 2025 https://github.com/python/cpython/pull/138766/commits/22a28b91792ad7a50eae363c8d8dc2beefb42ba4
4eaf601 No reference target rhettinger Sep 10, 2025 https://github.com/python/cpython/pull/138766/commits/4eaf601d072f28c92bff065e4e0c58981be85f2b
c6cd67c Update Misc/NEWS.d/next/Library/2025-09-10-13-32-25.gh-issue-138682.i… rhettinger Sep 24, 2025 https://github.com/python/cpython/pull/138766/commits/c6cd67ce29abb9b610916cb31fc9df2a81edd48b
5470a58 Update Doc/library/collections.rst rhettinger Sep 24, 2025 https://github.com/python/cpython/pull/138766/commits/5470a58e55e5d2dd59397b335c6f46a73ef5dbb0
984fa56 Update Doc/whatsnew/3.15.rst rhettinger Sep 24, 2025 https://github.com/python/cpython/pull/138766/commits/984fa567de1a20c5b6ddda7a10129a9f173ed194
2945c9b Update Lib/test/test_collections.py rhettinger Sep 24, 2025 https://github.com/python/cpython/pull/138766/commits/2945c9b4f49d2a2db75138cb91479f3ccf6e3540
2255af3 Update Lib/collections/__init__.py rhettinger Sep 24, 2025 https://github.com/python/cpython/pull/138766/commits/2255af31462559e94e47b1094113cf7b3aa1aae1
85979af Merge branch 'main' into symdiff rhettinger Sep 26, 2025 https://github.com/python/cpython/pull/138766/commits/85979afb2244d90a1f4970e325239c41dde0508f
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