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[3.13] gh-145990: sort --help-env first section by name (others and xoptions already sorted) (GH-146003)

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* sort `--help-env` sections by environment variable name
  Only needed in the first section, in 3.13 the second section was already sorted.
* regression test for --help-env & --help-xoptions sort order

Manual backport of GH-145997
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Gregory P. Smith 2026-03-15 15:35:53 -07:00 • committed by GitHub
parent 8469402083
commit 102cd61763
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3 changed files with 31 additions and 18 deletions
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36
Python/initconfig.c
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@ -238,32 +238,32 @@ The following implementation-specific options are available:\n\
/* Envvars that don't have equivalent command-line options are listed first */
static const char usage_envvars[] =
"Environment variables that change behavior:\n"
"PYTHONSTARTUP : file executed on interactive startup (no default)\n"
"PYTHONPATH : '%lc'-separated list of directories prefixed to the\n"
" default module search path. The result is sys.path.\n"
"PYTHONHOME : alternate <prefix> directory (or <prefix>%lc<exec_prefix>).\n"
" The default module search path uses %s.\n"
"PYTHONPLATLIBDIR: override sys.platlibdir\n"
"PYTHONBREAKPOINT: if this variable is set to 0, it disables the default\n"
" debugger. It can be set to the callable of your debugger of\n"
" choice.\n"
"PYTHONCASEOK : ignore case in 'import' statements (Windows)\n"
"PYTHONIOENCODING: encoding[:errors] used for stdin/stdout/stderr\n"
"PYTHONHASHSEED : if this variable is set to 'random', a random value is used\n"
" to seed the hashes of str and bytes objects. It can also be\n"
" set to an integer in the range [0,4294967295] to get hash\n"
" values with a predictable seed.\n"
"PYTHONMALLOC : set the Python memory allocators and/or install debug hooks\n"
" on Python memory allocators. Use PYTHONMALLOC=debug to\n"
" install debug hooks.\n"
"PYTHONCOERCECLOCALE: if this variable is set to 0, it disables the locale\n"
" coercion behavior. Use PYTHONCOERCECLOCALE=warn to request\n"
" display of locale coercion and locale compatibility warnings\n"
" on stderr.\n"
"PYTHONBREAKPOINT: if this variable is set to 0, it disables the default\n"
" debugger. It can be set to the callable of your debugger of\n"
" choice.\n"
"PYTHON_COLORS : if this variable is set to 1, the interpreter will colorize\n"
" various kinds of output. Setting it to 0 deactivates\n"
" this behavior.\n"
"PYTHONHASHSEED : if this variable is set to 'random', a random value is used\n"
" to seed the hashes of str and bytes objects. It can also be\n"
" set to an integer in the range [0,4294967295] to get hash\n"
" values with a predictable seed.\n"
"PYTHON_HISTORY : the location of a .python_history file.\n"
"PYTHONHOME : alternate <prefix> directory (or <prefix>%lc<exec_prefix>).\n"
" The default module search path uses %s.\n"
"PYTHONIOENCODING: encoding[:errors] used for stdin/stdout/stderr\n"
"PYTHONMALLOC : set the Python memory allocators and/or install debug hooks\n"
" on Python memory allocators. Use PYTHONMALLOC=debug to\n"
" install debug hooks.\n"
"PYTHONPATH : '%lc'-separated list of directories prefixed to the\n"
" default module search path. The result is sys.path.\n"
"PYTHONPLATLIBDIR: override sys.platlibdir\n"
"PYTHONSTARTUP : file executed on interactive startup (no default)\n"
"\n"
"These variables have equivalent command-line options (see --help for details):\n"
"PYTHON_CPU_COUNT: override the return value of os.cpu_count() (-X cpu_count)\n"
@ -2407,7 +2407,7 @@ config_usage(int error, const wchar_t* program)
static void
config_envvars_usage(void)
{
printf(usage_envvars, (wint_t)DELIM, (wint_t)DELIM, PYTHONHOMEHELP);
printf(usage_envvars, (wint_t)DELIM, PYTHONHOMEHELP, (wint_t)DELIM);
}
static void