From e5dc7f1992a27ae87daa9e5f5761c35221907bc3 Mon Sep 17 00:00:00 2001
From: Serhiy Storchaka <storchaka@gmail.com>
Date: Thu, 14 Mar 2024 12:09:19 +0200
Subject: [PATCH] [3.12] gh-90300: Fix undocumented envvars in the Python CLI
 help (GH-116765)

(cherry picked from commit 19ac28bd08fdb16795e6f82ea7bfac73e8f3791b)
---
 Python/initconfig.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Python/initconfig.c b/Python/initconfig.c
index 8eb3bba960ce3f..387dc1fd8e0370 100644
--- a/Python/initconfig.c
+++ b/Python/initconfig.c
@@ -179,9 +179,12 @@ static const char usage_envvars[] =
 "                  interpreter displays tracebacks. (-X no_debug_ranges)\n"
 "PYTHONNOUSERSITE: disable user site directory (-s)\n"
 "PYTHONOPTIMIZE  : enable level 1 optimizations (-O)\n"
+"PYTHONPERFSUPPORT: support the Linux \"perf\" profiler (-X perf)\n"
+"PYTHONPROFILEIMPORTTIME: show how long each import takes (-X importtime)\n"
 "PYTHONPYCACHEPREFIX: root directory for bytecode cache (pyc) files\n"
 "                  (-X pycache_prefix)\n"
 "PYTHONSAFEPATH  : don't prepend a potentially unsafe path to sys.path.\n"
+"PYTHONTRACEMALLOC: trace Python memory allocations (-X tracemalloc)\n"
 "PYTHONUNBUFFERED: disable stdout/stderr buffering (-u)\n"
 "PYTHONUTF8      : if set to 1, enable the UTF-8 mode (-X utf8)\n"
 "PYTHONVERBOSE   : trace import statements (-v)\n"