From 4afa129ed08780ef84fcee4dd1168a33034f2ea5 Mon Sep 17 00:00:00 2001 From: Donghee Na Date: Sun, 3 Nov 2024 13:00:52 +0900 Subject: [PATCH] =?utf8?q?[3.12]=20gh-125832:=20Clarify=20comment=20for=20?= =?utf8?q?inlined=20comprehensions=20as=20per=20P=E2=80=A6=20(gh-126345)?= MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit * [3.12] gh-125832: Clarify comment for inlined comprehensions as per PEP-709 (gh-126322) * Fix comprehensions comment to inlined by pep 709 * Update spacing Co-authored-by: RUANG (James Roy) * Add reference to PEP 709 --------- Co-authored-by: Carol Willing Co-authored-by: RUANG (James Roy) * Add space --------- Co-authored-by: rimchoi Co-authored-by: Carol Willing Co-authored-by: RUANG (James Roy) --- Python/compile.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/Python/compile.c b/Python/compile.c index 49b2ebf003ba..6050b7281fa0 100644 --- a/Python/compile.c +++ b/Python/compile.c @@ -5191,9 +5191,12 @@ ex_call: } -/* List and set comprehensions and generator expressions work by creating a - nested function to perform the actual iteration. This means that the - iteration variables don't leak into the current scope. +/* List and set comprehensions work by being inlined at the location where + they are defined. The isolation of iteration variables is provided by + pushing/popping clashing locals on the stack. Generator expressions work + by creating a nested function to perform the actual iteration. + This means that the iteration variables don't leak into the current scope. + See https://peps.python.org/pep-0709/ for additional information. The defined function is called immediately following its definition, with the result of that call being the result of the expression. The LC/SC version returns the populated container, while the GE version is -- 2.47.3