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Title: bpo-38870: Implement Simple Preceding to AST Unparser by isidentical · Pull Request #17377 · python/cpython · GitHub

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185df3c bpo-38870: Implement a basic precedence system isidentical Dec 24, 2019 https://github.com/python/cpython/pull/17377/commits/185df3c3258a9447b9614a466cceb2b6c3590ac3
c98db1f ensure testing item is in ast module isidentical Dec 24, 2019 https://github.com/python/cpython/pull/17377/commits/c98db1f7e4c66c2e01244961507ff1689cb9641b
73050b0 refactor field attr existence test, add more tests about arihmetic, a… isidentical Dec 29, 2019 https://github.com/python/cpython/pull/17377/commits/73050b0363e2a8476e3d71b7c8438304b45db5fd
4576f36 try to tweak _is_ast_node isidentical Dec 29, 2019 https://github.com/python/cpython/pull/17377/commits/4576f36413ff5dd53b54674c68212cc3f95ff2be
8a57059 shorten check, remove by= parameter isidentical Dec 29, 2019 https://github.com/python/cpython/pull/17377/commits/8a570593a9f6611bac118a0d4ee55132cc135be4
a9908ec unary op in compare isidentical Jan 4, 2020 https://github.com/python/cpython/pull/17377/commits/a9908eca54bf45c5596311e97e8ba98d98c89350
19b336b Merge branch 'master' into bpo-38870-precedence-algo isidentical Jan 6, 2020 https://github.com/python/cpython/pull/17377/commits/19b336b5ee9dbf80c37ab7d01117d9574cc171fb
f7aca50 simplify next() function for _Precedence isidentical Jan 7, 2020 https://github.com/python/cpython/pull/17377/commits/f7aca507e6488fcdda51c97d2a829c04682ddddf
1b07eb0 test & support top-level yield isidentical Jan 11, 2020 https://github.com/python/cpython/pull/17377/commits/1b07eb0a22d50017c4a0701a22eb97b49ba8ffc0
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