GeezerVisonThe World Wide Web, restored to 800 pixels of glory. |
| Home|About|Gaming cabinet|Archives|How it works|Starter sites |
GeezerVison is showing github.com — cpython/Python/initconfig.c at main · python/cpython Expand file tree/ Copy pathinitconfig.cMore file actions 5039 lines (4369 loc) · 140 KB / Copy pathinitconfig.cFile metadata and controls5039 lines (4369 loc) · 140 KB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 #include "Python.h" #include "pycore_fileutils.h" // _Py_HasFileSystemDefaultEncodeErrors #include "pycore_getopt.h" // _PyOS_GetOpt() #include "pycore_initconfig.h" // _PyStatus_OK() #include "pycore_interp.h" // _PyInterpreterState.runtime #include "pycore_long.h" // _PY_LONG_MAX_STR_DIGITS_THRESHOLD #include "pycore_pathconfig.h" // _Py_path_config #include "pycore_pyerrors.h" // _PyErr_GetRaisedException() #include "pycore_pylifecycle.h" // _Py_PreInitializeFromConfig() #include "pycore_pymem.h" // _PyMem_DefaultRawMalloc() #include "pycore_pyhash.h" // _Py_HashSecret #include "pycore_pystate.h" // _PyThreadState_GET() #include "pycore_pystats.h" // _Py_StatsOn() #include "pycore_sysmodule.h" // _PySys_SetIntMaxStrDigits() #include "osdefs.h" // DELIM #include <locale.h> // setlocale() #include <stdlib.h> // getenv() #if defined(MS_WINDOWS) || defined(__CYGWIN__) # ifdef HAVE_IO_H # include <io.h> # endif # ifdef HAVE_FCNTL_H # include <fcntl.h> // O_BINARY # endif #endif #ifdef __APPLE__ /* Enable system log by default on non-macOS Apple platforms */ # if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE #define USE_SYSTEM_LOGGER_DEFAULT 1; # else #define USE_SYSTEM_LOGGER_DEFAULT 0; # endif #endif #include "config_common.h" /* --- PyConfig setters ------------------------------------------- */ typedef PyObject* (*config_sys_flag_setter) (int value); static PyObject* config_sys_flag_long(int value) { return PyLong_FromLong(value); } static PyObject* config_sys_flag_not(int value) { value = (!value); return config_sys_flag_long(value); } /* --- PyConfig spec ---------------------------------------------- */ typedef enum { PyConfig_MEMBER_INT = 0, PyConfig_MEMBER_UINT = 1, PyConfig_MEMBER_ULONG = 2, PyConfig_MEMBER_BOOL = 3, PyConfig_MEMBER_WSTR = 10, PyConfig_MEMBER_WSTR_OPT = 11, PyConfig_MEMBER_WSTR_LIST = 12, } PyConfigMemberType; typedef enum { // Option which cannot be get or set by PyConfig_Get() and PyConfig_Set() PyConfig_MEMBER_INIT_ONLY = 0, // Option which cannot be set by PyConfig_Set() PyConfig_MEMBER_READ_ONLY = 1, // Public option: can be get and set by PyConfig_Get() and PyConfig_Set() PyConfig_MEMBER_PUBLIC = 2, } PyConfigMemberVisibility; typedef struct { const char *attr; int flag_index; config_sys_flag_setter flag_setter; } PyConfigSysSpec; typedef struct { int *ptr; int not; } PyConfigGlobalVar; typedef struct { const char *name; size_t offset; PyConfigMemberType type; PyConfigMemberVisibility visibility; PyConfigSysSpec sys; } PyConfigSpec; #define SPEC(MEMBER, TYPE, VISIBILITY, sys) \ {#MEMBER, offsetof(PyConfig, MEMBER), \ PyConfig_MEMBER_##TYPE, PyConfig_MEMBER_##VISIBILITY, sys} #define SYS_ATTR(name) {name, -1, NULL} #define SYS_FLAG_SETTER(index, setter) {NULL, index, setter} #define SYS_FLAG(index) SYS_FLAG_SETTER(index, NULL) #define NO_SYS SYS_ATTR(NULL) // Update _test_embed_set_config when adding new members static const PyConfigSpec PYCONFIG_SPEC[] = { // --- Public options ----------- SPEC(argv, WSTR_LIST, PUBLIC, SYS_ATTR("argv")), SPEC(base_exec_prefix, WSTR_OPT, PUBLIC, SYS_ATTR("base_exec_prefix")), SPEC(base_executable, WSTR_OPT, PUBLIC, SYS_ATTR("_base_executable")), SPEC(base_prefix, WSTR_OPT, PUBLIC, SYS_ATTR("base_prefix")), SPEC(bytes_warning, UINT, PUBLIC, SYS_FLAG(9)), SPEC(cpu_count, INT, PUBLIC, NO_SYS), SPEC(lazy_imports, INT, PUBLIC, NO_SYS), SPEC(exec_prefix, WSTR_OPT, PUBLIC, SYS_ATTR("exec_prefix")), SPEC(executable, WSTR_OPT, PUBLIC, SYS_ATTR("executable")), SPEC(inspect, BOOL, PUBLIC, SYS_FLAG(1)), SPEC(int_max_str_digits, UINT, PUBLIC, NO_SYS), SPEC(interactive, BOOL, PUBLIC, SYS_FLAG(2)), SPEC(module_search_paths, WSTR_LIST, PUBLIC, SYS_ATTR("path")), SPEC(optimization_level, UINT, PUBLIC, SYS_FLAG(3)), SPEC(parser_debug, BOOL, PUBLIC, SYS_FLAG(0)), SPEC(platlibdir, WSTR, PUBLIC, SYS_ATTR("platlibdir")), SPEC(prefix, WSTR_OPT, PUBLIC, SYS_ATTR("prefix")), SPEC(pycache_prefix, WSTR_OPT, PUBLIC, SYS_ATTR("pycache_prefix")), SPEC(quiet, BOOL, PUBLIC, SYS_FLAG(10)), SPEC(stdlib_dir, WSTR_OPT, PUBLIC, SYS_ATTR("_stdlib_dir")), SPEC(use_environment, BOOL, PUBLIC, SYS_FLAG_SETTER(7, config_sys_flag_not)), SPEC(verbose, UINT, PUBLIC, SYS_FLAG(8)), SPEC(warnoptions, WSTR_LIST, PUBLIC, SYS_ATTR("warnoptions")), SPEC(write_bytecode, BOOL, PUBLIC, SYS_FLAG_SETTER(4, config_sys_flag_not)), SPEC(xoptions, WSTR_LIST, PUBLIC, SYS_ATTR("_xoptions")), // --- Read-only options ----------- #ifdef Py_STATS SPEC(_pystats, BOOL, READ_ONLY, NO_SYS), #endif SPEC(buffered_stdio, BOOL, READ_ONLY, NO_SYS), SPEC(check_hash_pycs_mode, WSTR, READ_ONLY, NO_SYS), SPEC(code_debug_ranges, BOOL, READ_ONLY, NO_SYS), SPEC(configure_c_stdio, BOOL, READ_ONLY, NO_SYS), SPEC(dev_mode, BOOL, READ_ONLY, NO_SYS), // sys.flags.dev_mode SPEC(dump_refs, BOOL, READ_ONLY, NO_SYS), SPEC(dump_refs_file, WSTR_OPT, READ_ONLY, NO_SYS), #ifdef Py_GIL_DISABLED SPEC(enable_gil, INT, READ_ONLY, NO_SYS), SPEC(tlbc_enabled, INT, READ_ONLY, NO_SYS), #endif SPEC(faulthandler, BOOL, READ_ONLY, NO_SYS), SPEC(filesystem_encoding, WSTR, READ_ONLY, NO_SYS), SPEC(filesystem_errors, WSTR, READ_ONLY, NO_SYS), SPEC(hash_seed, ULONG, READ_ONLY, NO_SYS), SPEC(home, WSTR_OPT, READ_ONLY, NO_SYS), SPEC(thread_inherit_context, INT, READ_ONLY, NO_SYS), SPEC(context_aware_warnings, INT, READ_ONLY, NO_SYS), SPEC(import_time, UINT, READ_ONLY, NO_SYS), SPEC(install_signal_handlers, BOOL, READ_ONLY, NO_SYS), SPEC(isolated, BOOL, READ_ONLY, NO_SYS), // sys.flags.isolated #ifdef MS_WINDOWS SPEC(legacy_windows_stdio, BOOL, READ_ONLY, NO_SYS), #endif SPEC(malloc_stats, BOOL, READ_ONLY, NO_SYS), SPEC(pymalloc_hugepages, BOOL, READ_ONLY, NO_SYS), SPEC(orig_argv, WSTR_LIST, READ_ONLY, SYS_ATTR("orig_argv")), SPEC(parse_argv, BOOL, READ_ONLY, NO_SYS), SPEC(pathconfig_warnings, BOOL, READ_ONLY, NO_SYS), SPEC(perf_profiling, UINT, READ_ONLY, NO_SYS), SPEC(remote_debug, BOOL, READ_ONLY, NO_SYS), SPEC(program_name, WSTR, READ_ONLY, NO_SYS), SPEC(run_command, WSTR_OPT, READ_ONLY, NO_SYS), SPEC(run_filename, WSTR_OPT, READ_ONLY, NO_SYS), SPEC(run_module, WSTR_OPT, READ_ONLY, NO_SYS), #ifdef Py_DEBUG SPEC(run_presite, WSTR_OPT, READ_ONLY, NO_SYS), #endif SPEC(safe_path, BOOL, READ_ONLY, NO_SYS), SPEC(show_ref_count, BOOL, READ_ONLY, NO_SYS), SPEC(site_import, BOOL, READ_ONLY, NO_SYS), // sys.flags.no_site SPEC(skip_source_first_line, BOOL, READ_ONLY, NO_SYS), SPEC(stdio_encoding, WSTR_OPT, READ_ONLY, NO_SYS), SPEC(stdio_errors, WSTR, READ_ONLY, NO_SYS), SPEC(tracemalloc, UINT, READ_ONLY, NO_SYS), SPEC(use_frozen_modules, BOOL, READ_ONLY, NO_SYS), SPEC(use_hash_seed, BOOL, READ_ONLY, NO_SYS), #ifdef __APPLE__ SPEC(use_system_logger, BOOL, READ_ONLY, NO_SYS), #endif SPEC(user_site_directory, BOOL, READ_ONLY, NO_SYS), // sys.flags.no_user_site SPEC(warn_default_encoding, BOOL, READ_ONLY, NO_SYS), // --- Init-only options ----------- SPEC(_config_init, UINT, INIT_ONLY, NO_SYS), SPEC(_init_main, BOOL, INIT_ONLY, NO_SYS), SPEC(_install_importlib, BOOL, INIT_ONLY, NO_SYS), SPEC(_is_python_build, BOOL, INIT_ONLY, NO_SYS), SPEC(module_search_paths_set, BOOL, INIT_ONLY, NO_SYS), SPEC(pythonpath_env, WSTR_OPT, INIT_ONLY, NO_SYS), SPEC(sys_path_0, WSTR_OPT, INIT_ONLY, NO_SYS), SPEC(_deferred_cmdline_option, INT, INIT_ONLY, NO_SYS), // Array terminator {NULL, 0, 0, 0, NO_SYS}, }; #undef SPEC #define SPEC(MEMBER, TYPE, VISIBILITY) \ {#MEMBER, offsetof(PyPreConfig, MEMBER), PyConfig_MEMBER_##TYPE, \ PyConfig_MEMBER_##VISIBILITY, NO_SYS} static const PyConfigSpec PYPRECONFIG_SPEC[] = { // --- Read-only options ----------- SPEC(allocator, INT, READ_ONLY), SPEC(coerce_c_locale, BOOL, READ_ONLY), SPEC(coerce_c_locale_warn, BOOL, READ_ONLY), SPEC(configure_locale, BOOL, READ_ONLY), #ifdef MS_WINDOWS SPEC(legacy_windows_fs_encoding, BOOL, READ_ONLY), #endif SPEC(utf8_mode, BOOL, READ_ONLY), // --- Init-only options ----------- // Members already present in PYCONFIG_SPEC SPEC(_config_init, INT, INIT_ONLY), SPEC(dev_mode, BOOL, INIT_ONLY), SPEC(isolated, BOOL, INIT_ONLY), SPEC(parse_argv, BOOL, INIT_ONLY), SPEC(use_environment, BOOL, INIT_ONLY), // Array terminator {NULL, 0, 0, 0, NO_SYS}, }; #undef SPEC #undef SYS_ATTR #undef SYS_FLAG_SETTER #undef SYS_FLAG #undef NO_SYS // Forward declarations static PyObject* config_get(const PyConfig *config, const PyConfigSpec *spec, int use_sys); static void initconfig_free_wstr(wchar_t *member); static void initconfig_free_wstr_list(PyWideStringList *list); static void initconfig_free_config(const PyConfig *config); /* --- Command line options --------------------------------------- */ /* * Help text markup (matching Lib/_colorize.py Argparse theme). * * Color spans, #X{...} where "}" resets to default color: * #b{...} label bold yellow * #B{...} summary label yellow * #E{...} env var (primary) bold cyan * #e{...} env var reference cyan * #h{...} heading bold blue * #L{...} long option bold cyan * #s{...} short option bold green * #S{...} summary short opt green * * Runtime substitutions (no "{" follows): * #P program name (bold magenta) * #D path separator (DELIM) * #H PYTHONHOMEHELP default search path * * fprint_help() walks the string, expanding color codes only when colorize=1 * and substituting runtime values regardless. */ #if defined(MS_WINDOWS) # define PYTHONHOMEHELP "<prefix>\\python{major}{minor}" #else # define PYTHONHOMEHELP "<prefix>/lib/pythonX.X" #endif /* Determine if we can emit ANSI color codes on the given stream. * Logic mirrors Lib/_colorize.py:can_colorize(). */ static int _Py_can_colorize(FILE *f) { const char *env; env = Py_GETENV("PYTHON_COLORS"); if (env) { if (strcmp(env, "0") == 0) { return 0; } if (strcmp(env, "1") == 0) { return 1; } } if (getenv("NO_COLOR")) { return 0; } if (getenv("FORCE_COLOR")) { return 1; } env = getenv("TERM"); if (env && strcmp(env, "dumb") == 0) { return 0; } #if defined(MS_WINDOWS) && defined(HAVE_WINDOWS_CONSOLE_IO) { DWORD mode = 0; DWORD nStdHandle = (f == stderr) ? STD_ERROR_HANDLE : STD_OUTPUT_HANDLE; HANDLE handle = GetStdHandle(nStdHandle); if (!GetConsoleMode(handle, &mode) || !(mode & ENABLE_VIRTUAL_TERMINAL_PROCESSING)) { return 0; } } #endif return isatty(fileno(f)); } /* Walk help text, expanding markup: * #X{...} color span (only emitted when colorize=1; '}' resets). * #X runtime substitution (program name, DELIM, PYTHONHOMEHELP). * See the markup table above the macro/comment block. */ static void fprint_help(FILE *f, const char *text, int colorize, const wchar_t *program) { for (const char *p = text; *p; ) { if (*p == '#' && p[1]) { char code = p[1]; if (p[2] == '{') { /* Color span open */ const char *seq = NULL; switch (code) { case 'h': seq = "\x1b[1;34m"; break; // heading case 'E': seq = "\x1b[1;36m"; break; // env var primary case 'e': seq = "\x1b[36m"; break; // env var reference case 'L': seq = "\x1b[1;36m"; break; // long option case 'b': seq = "\x1b[1;33m"; break; // label case 'B': seq = "\x1b[33m"; break; // summary label case 's': seq = "\x1b[1;32m"; break; // short option case 'S': seq = "\x1b[32m"; break; // summary short option } if (colorize && seq) fputs(seq, f); p += 3; // skip "#X{" continue; } /* Runtime substitution */ switch (code) { case 'P': // program name with bold magenta if (colorize) fputs("\x1b[1;35m", f); if (program) fprintf(f, "%ls", program); if (colorize) fputs("\x1b[0m", f); break; case 'D': fputc((char)DELIM, f); break; case 'H': fputs(PYTHONHOMEHELP, f); break; default: // unknown: emit literally fputc('#', f); fputc(code, f); break; } p += 2; // skip "#X" continue; } if (*p == '}') { if (colorize) fputs("\x1b[0m", f); p++; continue; } fputc(*p++, f); } } /* Short usage message */ static const char usage_line[] = "#h{usage:} #P [#S{option}] #S{...} " "[#S{-c} #B{cmd} | #S{-m} #B{mod} | #S{file} | #S{-}] " "[#S{arg}] #S{...}\n" ; /* Long help message */ /* Lines sorted by option name; keep in sync with usage_envvars* below */ static const char usage_help[] = "#h{Options (and corresponding environment variables):}\n" "#s{-b} : issue warnings about converting bytes/bytearray to str and comparing\n" " bytes/bytearray with str or bytes with int. (#S{-bb}: issue errors)\n" " deprecated since 3.15 and will become no-op in 3.17.\n" "#s{-B} : don't write .pyc files on import; also #e{PYTHONDONTWRITEBYTECODE}#B{=x}\n" "#s{-c} #b{cmd} : program passed in as string (terminates option list)\n" "#s{-d} : turn on parser debugging output (for experts only, only works on\n" " debug builds); also #e{PYTHONDEBUG}#B{=x}\n" "#s{-E} : ignore #e{PYTHON*} environment variables (such as #e{PYTHONPATH})\n" "#s{-h} : print this help message and exit (also #S{-?} or #e{--help})\n" "#s{-i} : inspect interactively after running script; forces a prompt even\n" " if stdin does not appear to be a terminal; also #e{PYTHONINSPECT}#B{=x}\n" "#s{-I} : isolate Python from the user's environment (implies #S{-E}, #S{-P} and #S{-s})\n" "#s{-m} #b{mod} : run library module as a script (terminates option list)\n" "#s{-O} : remove assert and __debug__-dependent statements; add .opt-1 before\n" " .pyc extension; also #e{PYTHONOPTIMIZE}#B{=x}\n" "#s{-OO} : do #S{-O} changes and also discard docstrings; add .opt-2 before\n" " .pyc extension\n" "#s{-P} : don't prepend a potentially unsafe path to sys.path; also\n" " #e{PYTHONSAFEPATH}\n" "#s{-q} : don't print version and copyright messages on interactive startup\n" "#s{-s} : don't add user site directory to sys.path; also #e{PYTHONNOUSERSITE}#B{=x}\n" "#s{-S} : don't imply 'import site' on initialization\n" "#s{-u} : force the stdout and stderr streams to be unbuffered;\n" " this option has no effect on stdin; also #e{PYTHONUNBUFFERED}#B{=x}\n" "#s{-v} : verbose (trace import statements); also #e{PYTHONVERBOSE}#B{=x}\n" " can be supplied multiple times to increase verbosity\n" "#s{-V} : print the Python version number and exit (also #e{--version})\n" " when given twice, print more information about the build\n" "#s{-W} #b{arg} : warning control; #B{arg} is action:message:category:module:lineno\n" " also #e{PYTHONWARNINGS}#B{=arg}\n" "#s{-x} : skip first line of source, allowing use of non-Unix forms of #!cmd\n" "#s{-X} #b{opt} : set implementation-specific option\n" "#L{--check-hash-based-pycs} #b{always|default|never}:\n" " control how Python invalidates hash-based .pyc files\n" "#L{--help-env}: print help about Python environment variables and exit\n" "#L{--help-xoptions}: print help about implementation-specific #S{-X} options and exit\n" "#L{--help-all}: print complete help information and exit\n" "\n" "#h{Arguments:}\n" "#s{file} : program read from script file\n" "#s{-} : program read from stdin (default; interactive mode if a tty)\n" "#s{arg} #b{...}: arguments passed to program in sys.argv[1:]\n" ; static const char usage_xoptions[] = "#h{The following implementation-specific options are available:}\n" "#s{-X} #L{context_aware_warnings}#b{=[0|1]}: if true (#B{1}) then the warnings module will\n" " use a context variables; if false (#B{0}) then the warnings module will\n" " use module globals, which is not concurrent-safe; set to true for\n" " free-threaded builds and false otherwise; also\n" " #e{PYTHON_CONTEXT_AWARE_WARNINGS}\n" "#s{-X} #L{cpu_count}#b{=N}: override the return value of os.cpu_count();\n" " #S{-X} #e{cpu_count}#B{=default} cancels overriding; also #e{PYTHON_CPU_COUNT}\n" "#s{-X} #L{dev} : enable Python Development Mode; also #e{PYTHONDEVMODE}\n" "#s{-X} #L{disable-remote-debug}: disable remote debugging; also #e{PYTHON_DISABLE_REMOTE_DEBUG}\n" "#s{-X} #L{faulthandler}: dump the Python traceback on fatal errors;\n" " also #e{PYTHONFAULTHANDLER}\n" "#s{-X} #L{frozen_modules}#b{=[on|off]}: whether to use frozen modules; the default is \"#B{on}\"\n" " for installed Python and \"#B{off}\" for a local build;\n" " also #e{PYTHON_FROZEN_MODULES}\n" #ifdef Py_GIL_DISABLED "#s{-X} #L{gil}#b{=[0|1]}: enable (#B{1}) or disable (#B{0}) the GIL; also #e{PYTHON_GIL}\n" #endif "#s{-X} #L{importtime}#b{[=2]}: show how long each import takes; use #S{-X} #e{importtime}#B{=2} to\n" " log imports of already-loaded modules; also #e{PYTHONPROFILEIMPORTTIME}\n" "#s{-X} #L{int_max_str_digits}#b{=N}: limit the size of int<->str conversions;\n" " 0 disables the limit; also #e{PYTHONINTMAXSTRDIGITS}\n" "#s{-X} #L{lazy_imports}#b{=[all|normal]}: control global lazy imports;\n" " default is #B{normal}; also #e{PYTHON_LAZY_IMPORTS}\n" "#s{-X} #L{no_debug_ranges}: don't include extra location information in code objects;\n" " also #e{PYTHONNODEBUGRANGES}\n" "#s{-X} #L{pathconfig_warnings}#b{=[0|1]}: if true (#B{1}) then path configuration is allowed\n" " to log warnings into stderr; if false (#B{0}) suppress these warnings;\n" " set to true by default; also #e{PYTHON_PATHCONFIG_WARNINGS}\n" "#s{-X} #L{perf}: support the Linux \"perf\" profiler; also #e{PYTHONPERFSUPPORT}#B{=1}\n" "#s{-X} #L{perf_jit}: support the Linux \"perf\" profiler with DWARF support;\n" " also #e{PYTHON_PERF_JIT_SUPPORT}#B{=1}\n" #ifdef Py_DEBUG "#s{-X} #L{presite}#b{=MOD}: import this module before site; also #e{PYTHON_PRESITE}\n" #endif "#s{-X} #L{pycache_prefix}#b{=PATH}: write .pyc files to a parallel tree instead of to the\n" " code tree; also #e{PYTHONPYCACHEPREFIX}\n" #ifdef Py_STATS "#s{-X} #L{pystats}: enable pystats collection at startup; also #e{PYTHONSTATS}\n" #endif "#s{-X} #L{showrefcount}: output the total reference count and number of used\n" " memory blocks when the program finishes or after each statement in\n" " the interactive interpreter; only works on debug builds\n" "#s{-X} #L{thread_inherit_context}#b{=[0|1]}: enable (#B{1}) or disable (#B{0}) threads inheriting\n" " context vars by default; enabled by default in the free-threaded\n" " build and disabled otherwise; also #e{PYTHON_THREAD_INHERIT_CONTEXT}\n" #ifdef Py_GIL_DISABLED "#s{-X} #L{tlbc}#b{=[0|1]}: enable (#B{1}) or disable (#B{0}) thread-local bytecode. Also\n" " #e{PYTHON_TLBC}\n" #endif "#s{-X} #L{tracemalloc}#b{[=N]}: trace Python memory allocations; N sets a traceback limit\n" " of #B{N} frames (default: #B{1}); also #e{PYTHONTRACEMALLOC}#B{=N}\n" "#s{-X} #L{utf8}#b{[=0|1]}: enable (#B{1}) or disable (#B{0}) UTF-8 mode; also #e{PYTHONUTF8}\n" "#s{-X} #L{warn_default_encoding}: enable opt-in EncodingWarning for 'encoding=None';\n" " also #e{PYTHONWARNDEFAULTENCODING}\n" ; /* Envvars that don't have equivalent command-line options are listed first */ static const char usage_envvars[] = "#h{Environment variables that change behavior:}\n" "#E{PYTHONASYNCIODEBUG}: enable asyncio debug mode\n" "#E{PYTHON_BASIC_REPL}: use the traditional parser-based REPL\n" "#E{PYTHONBREAKPOINT}: if this variable is set to #B{0}, it disables the default\n" " debugger. It can be set to the callable of your debugger of\n" " choice.\n" "#E{PYTHONCASEOK} : ignore case in 'import' statements (Windows)\n" "#E{PYTHONCOERCECLOCALE}: if this variable is set to #B{0}, it disables the locale\n" " coercion behavior. Use #e{PYTHONCOERCECLOCALE}#B{=warn} to request\n" " display of locale coercion and locale compatibility warnings\n" " on stderr.\n" "#E{PYTHON_COLORS} : if this variable is set to #B{1}, the interpreter will colorize\n" " various kinds of output. Setting it to #B{0} deactivates\n" " this behavior.\n" #ifdef Py_TRACE_REFS "#E{PYTHONDUMPREFS} : dump objects and reference counts still alive after shutdown\n" "#E{PYTHONDUMPREFSFILE}: dump objects and reference counts to the specified file\n" #endif #ifdef __APPLE__ "#E{PYTHONEXECUTABLE}: set sys.argv[0] to this value (macOS only)\n" #endif "#E{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" "#E{PYTHON_HISTORY} : the location of a .python_history file.\n" "#E{PYTHONHOME} : alternate <prefix> directory (or <prefix>#D<exec_prefix>).\n" " The default module search path uses #H.\n" "#E{PYTHONIOENCODING}: encoding[:errors] used for stdin/stdout/stderr\n" #ifdef MS_WINDOWS "#E{PYTHONLEGACYWINDOWSFSENCODING}: use legacy \"mbcs\" encoding for file system\n" "#E{PYTHONLEGACYWINDOWSSTDIO}: use legacy Windows stdio\n" #endif "#E{PYTHONMALLOC} : set the Python memory allocators and/or install debug hooks\n" " on Python memory allocators. Use #e{PYTHONMALLOC}#B{=debug} to\n" " install debug hooks.\n" "#E{PYTHONMALLOCSTATS}: print memory allocator statistics\n" "#E{PYTHONPATH} : '#D'-separated list of directories prefixed to the\n" " default module search path. The result is sys.path.\n" "#E{PYTHONPLATLIBDIR}: override sys.platlibdir\n" "#E{PYTHONSTARTUP} : file executed on interactive startup (no default)\n" "#E{PYTHONUSERBASE} : defines the user base directory (site.USER_BASE)\n" "\n" "#h{These variables have equivalent command-line options (see }#e{--help} for details):\n" "#E{PYTHON_CONTEXT_AWARE_WARNINGS}: if true (#B{1}), enable thread-safe warnings\n" " module behaviour (#S{-X} #e{context_aware_warnings})\n" "#E{PYTHON_CPU_COUNT}: override the return value of os.cpu_count() (#S{-X} #e{cpu_count})\n" "#E{PYTHONDEBUG} : enable parser debug mode (#S{-d})\n" "#E{PYTHONDEVMODE} : enable Python Development Mode (#S{-X} #e{dev})\n" "#E{PYTHONDONTWRITEBYTECODE}: don't write .pyc files (#S{-B})\n" "#E{PYTHONFAULTHANDLER}: dump the Python traceback on fatal errors (#S{-X} #e{faulthandler})\n" "#E{PYTHON_FROZEN_MODULES}: whether to use frozen modules; the default is \"#B{on}\"\n" " for installed Python and \"#B{off}\" for a local build\n" " (#S{-X} #e{frozen_modules})\n" #ifdef Py_GIL_DISABLED "#E{PYTHON_GIL} : when set to #B{0}, disables the GIL (#S{-X} #e{gil})\n" #endif "#E{PYTHONINSPECT} : inspect interactively after running script (#S{-i})\n" "#E{PYTHONINTMAXSTRDIGITS}: limit the size of int<->str conversions;\n" " 0 disables the limit (#S{-X} #e{int_max_str_digits}#B{=N})\n" "#E{PYTHON_LAZY_IMPORTS}: control global lazy imports (#S{-X} #e{lazy_imports})\n" "#E{PYTHONNODEBUGRANGES}: don't include extra location information in code objects\n" " (#S{-X} #e{no_debug_ranges})\n" "#E{PYTHONNOUSERSITE}: disable user site directory (#S{-s})\n" "#E{PYTHONOPTIMIZE} : enable level 1 optimizations (#S{-O})\n" "#E{PYTHON_PERF_JIT_SUPPORT}: enable Linux \"perf\" profiler support with JIT\n" " (#S{-X} #e{perf_jit})\n" "#E{PYTHONPERFSUPPORT}: support the Linux \"perf\" profiler (#S{-X} #e{perf})\n" #ifdef Py_DEBUG "#E{PYTHON_PRESITE}: import this module before site (#S{-X} #e{presite})\n" #endif "#E{PYTHONPROFILEIMPORTTIME}: show how long each import takes (#S{-X} #e{importtime})\n" "#E{PYTHONPYCACHEPREFIX}: root directory for bytecode cache (pyc) files\n" " (#S{-X} #e{pycache_prefix})\n" "#E{PYTHONSAFEPATH} : don't prepend a potentially unsafe path to sys.path.\n" #ifdef Py_STATS "#E{PYTHONSTATS} : turns on statistics gathering (#S{-X} #e{pystats})\n" #endif "#E{PYTHON_THREAD_INHERIT_CONTEXT}: if true (#B{1}), threads inherit context vars\n" " (#S{-X} #e{thread_inherit_context})\n" #ifdef Py_GIL_DISABLED "#E{PYTHON_TLBC} : when set to #B{0}, disables thread-local bytecode (#S{-X} #e{tlbc})\n" #endif "#E{PYTHONTRACEMALLOC}: trace Python memory allocations (#S{-X} #e{tracemalloc})\n" "#E{PYTHONUNBUFFERED}: disable stdout/stderr buffering (#S{-u})\n" "#E{PYTHONUTF8} : control the UTF-8 mode (#S{-X} #e{utf8})\n" "#E{PYTHONVERBOSE} : trace import statements (#S{-v})\n" "#E{PYTHONWARNDEFAULTENCODING}: enable opt-in EncodingWarning for 'encoding=None'\n" " (#S{-X} #e{warn_default_encoding})\n" "#E{PYTHONWARNINGS} : warning control (#S{-W})\n" ; /* --- Global configuration variables ----------------------------- */ // Variable removed from Python limited C API 3.16, but kept in the stable ABI PyAPI_DATA(int) Py_UTF8Mode; /* UTF-8 mode (PEP 540): if equal to 1, use the UTF-8 encoding, and change stdin and stdout error handler to "surrogateescape". */ int Py_UTF8Mode = 0; static PyObject * _Py_GetGlobalVariablesAsDict(void) { extern const char *Py_FileSystemDefaultEncoding; extern const char *Py_FileSystemDefaultEncodeErrors; extern int Py_HasFileSystemDefaultEncoding; extern int _Py_HasFileSystemDefaultEncodeErrors; PyObject *dict = PyDict_New(); if (dict == NULL) { return NULL; } #define SET_ITEM(KEY, EXPR) \ do { \ PyObject *obj = (EXPR); \ if (obj == NULL) { \ goto fail; \ } \ int res = PyDict_SetItemString(dict, (KEY), obj); \ Py_DECREF(obj); \ if (res < 0) { \ goto fail; \ } \ } while (0) #define SET_ITEM_INT(VAR) \ SET_ITEM(#VAR, PyLong_FromLong(VAR)) #define FROM_STRING(STR) \ ((STR != NULL) ? \ PyUnicode_FromString(STR) \ : Py_NewRef(Py_None)) #define SET_ITEM_STR(VAR) \ SET_ITEM(#VAR, FROM_STRING(VAR)) SET_ITEM_STR(Py_FileSystemDefaultEncoding); SET_ITEM_INT(Py_HasFileSystemDefaultEncoding); SET_ITEM_STR(Py_FileSystemDefaultEncodeErrors); SET_ITEM_INT(_Py_HasFileSystemDefaultEncodeErrors); SET_ITEM_INT(Py_UTF8Mode); return dict; fail: Py_DECREF(dict); return NULL; #undef FROM_STRING #undef SET_ITEM #undef SET_ITEM_INT #undef SET_ITEM_STR } char* Py_GETENV(const char *name) { int use_environment = 1; PyThreadState *tstate = PyThreadState_GetUnchecked(); if (tstate != NULL) { const PyConfig *config = &tstate->interp->config; use_environment = config->use_environment; } if (!use_environment) { return NULL; } return getenv(name); } /* --- PyStatus ----------------------------------------------- */ PyStatus PyStatus_Ok(void) { return _PyStatus_OK(); } PyStatus PyStatus_Error(const char *err_msg) { assert(err_msg != NULL); return (PyStatus){._type = _PyStatus_TYPE_ERROR, .err_msg = err_msg}; } PyStatus PyStatus_NoMemory(void) { return PyStatus_Error("memory allocation failed"); } PyStatus PyStatus_Exit(int exitcode) { return _PyStatus_EXIT(exitcode); } int PyStatus_IsError(PyStatus status) { return _PyStatus_IS_ERROR(status); } int PyStatus_IsExit(PyStatus status) { return _PyStatus_IS_EXIT(status); } int PyStatus_Exception(PyStatus status) { return _PyStatus_EXCEPTION(status); } void _PyErr_SetFromPyStatus(PyStatus status) { if (!_PyStatus_IS_ERROR(status)) { PyErr_Format(PyExc_SystemError, "_PyErr_SetFromPyStatus() status is not an error"); return; } const char *err_msg = status.err_msg; if (err_msg == NULL || strlen(err_msg) == 0) { PyErr_Format(PyExc_SystemError, "_PyErr_SetFromPyStatus() status has no error message"); return; } if (strcmp(err_msg, _PyStatus_NO_MEMORY_ERRMSG) == 0) { PyErr_NoMemory(); return; } const char *func = status.func; if (func) { PyErr_Format(PyExc_RuntimeError, "%s: %s", func, err_msg); } else { PyErr_Format(PyExc_RuntimeError, "%s", err_msg); } } /* --- PyWideStringList ------------------------------------------------ */ #ifndef NDEBUG int _PyWideStringList_CheckConsistency(const PyWideStringList *list) { assert(list->length >= 0); if (list->length != 0) { assert(list->items != NULL); } for (Py_ssize_t i = 0; i < list->length; i++) { assert(list->items[i] != NULL); } return 1; } #endif /* Py_DEBUG */ static void _PyWideStringList_ClearEx(PyWideStringList *list, bool use_default_allocator) { assert(_PyWideStringList_CheckConsistency(list)); for (Py_ssize_t i=0; i < list->length; i++) { if (use_default_allocator) { _PyMem_DefaultRawFree(list->items[i]); } else { PyMem_RawFree(list->items[i]); } } if (use_default_allocator) { _PyMem_DefaultRawFree(list->items); } else { PyMem_RawFree(list->items); } list->length = 0; list->items = NULL; } void _PyWideStringList_Clear(PyWideStringList *list) { _PyWideStringList_ClearEx(list, false); } static int _PyWideStringList_CopyEx(PyWideStringList *list, const PyWideStringList *list2, bool use_default_allocator) { assert(_PyWideStringList_CheckConsistency(list)); assert(_PyWideStringList_CheckConsistency(list2)); if (list2->length == 0) { _PyWideStringList_ClearEx(list, use_default_allocator); return 0; } PyWideStringList copy = _PyWideStringList_INIT; size_t size = list2->length * sizeof(list2->items[0]); if (use_default_allocator) { copy.items = _PyMem_DefaultRawMalloc(size); } else { copy.items = PyMem_RawMalloc(size); } if (copy.items == NULL) { return -1; } for (Py_ssize_t i=0; i < list2->length; i++) { wchar_t *item; if (use_default_allocator) { item = _PyMem_DefaultRawWcsdup(list2->items[i]); } else { item = _PyMem_RawWcsdup(list2->items[i]); } if (item == NULL) { _PyWideStringList_ClearEx(©, use_default_allocator); return -1; } copy.items[i] = item; copy.length = i + 1; } _PyWideStringList_ClearEx(list, use_default_allocator); *list = copy; return 0; } int _PyWideStringList_Copy(PyWideStringList *list, const PyWideStringList *list2) { return _PyWideStringList_CopyEx(list, list2, false); } PyStatus PyWideStringList_Insert(PyWideStringList *list, Py_ssize_t index, const wchar_t *item) { Py_ssize_t len = list->length; if (len == PY_SSIZE_T_MAX) { /* length+1 would overflow */ return _PyStatus_NO_MEMORY(); } if (index < 0) { return _PyStatus_ERR("PyWideStringList_Insert index must be >= 0"); } if (index > len) { index = len; } wchar_t *item2 = _PyMem_RawWcsdup(item); if (item2 == NULL) { return _PyStatus_NO_MEMORY(); } size_t size = (len + 1) * sizeof(list->items[0]); wchar_t **items2 = (wchar_t **)PyMem_RawRealloc(list->items, size); if (items2 == NULL) { PyMem_RawFree(item2); return _PyStatus_NO_MEMORY(); } if (index < len) { memmove(&items2[index + 1], &items2[index], (len - index) * sizeof(items2[0])); } items2[index] = item2; list->items = items2; list->length++; return _PyStatus_OK(); } PyStatus PyWideStringList_Append(PyWideStringList *list, const wchar_t *item) { return PyWideStringList_Insert(list, list->length, item); } PyStatus _PyWideStringList_Extend(PyWideStringList *list, const PyWideStringList *list2) { for (Py_ssize_t i = 0; i < list2->length; i++) { PyStatus status = PyWideStringList_Append(list, list2->items[i]); if (_PyStatus_EXCEPTION(status)) { return status; } } return _PyStatus_OK(); } static int _PyWideStringList_Find(PyWideStringList *list, const wchar_t *item) { for (Py_ssize_t i = 0; i < list->length; i++) { if (wcscmp(list->items[i], item) == 0) { return 1; } } return 0; } PyObject* _PyWideStringList_AsList(const PyWideStringList *list) { assert(_PyWideStringList_CheckConsistency(list)); PyObject *pylist = PyList_New(list->length); if (pylist == NULL) { return NULL; } for (Py_ssize_t i = 0; i < list->length; i++) { PyObject *item = PyUnicode_FromWideChar(list->items[i], -1); if (item == NULL) { Py_DECREF(pylist); return NULL; } PyList_SET_ITEM(pylist, i, item); } return pylist; } static PyObject* _PyWideStringList_AsTuple(const PyWideStringList *list) { assert(_PyWideStringList_CheckConsistency(list)); PyObject *tuple = PyTuple_New(list->length); if (tuple == NULL) { return NULL; } for (Py_ssize_t i = 0; i < list->length; i++) { PyObject *item = PyUnicode_FromWideChar(list->items[i], -1); if (item == NULL) { Py_DECREF(tuple); return NULL; } PyTuple_SET_ITEM(tuple, i, item); } return tuple; } /* --- Py_GetArgcArgv() ------------------------------------------- */ void _Py_ClearArgcArgv(void) { _PyWideStringList_ClearEx(&_PyRuntime.orig_argv, true); } static int _Py_SetArgcArgv(Py_ssize_t argc, wchar_t * const *argv) { const PyWideStringList argv_list = {.length = argc, .items = (wchar_t **)argv}; // XXX _PyRuntime.orig_argv only gets cleared by Py_Main(), // so it currently leaks for embedders. return _PyWideStringList_CopyEx(&_PyRuntime.orig_argv, &argv_list, true); } // _PyConfig_Write() calls _Py_SetArgcArgv() with PyConfig.orig_argv. void Py_GetArgcArgv(int *argc, wchar_t ***argv) { *argc = (int)_PyRuntime.orig_argv.length; *argv = _PyRuntime.orig_argv.items; } /* --- PyConfig ---------------------------------------------- */ #define MAX_HASH_SEED 4294967295UL #ifndef NDEBUG static int config_check_consistency(const PyConfig *config) { /* Check config consistency */ assert(config->isolated >= 0); assert(config->use_environment >= 0); assert(config->dev_mode >= 0); assert(config->install_signal_handlers >= 0); assert(config->use_hash_seed >= 0); assert(config->hash_seed <= MAX_HASH_SEED); assert(config->faulthandler >= 0); assert(config->tracemalloc >= 0); assert(config->import_time >= 0); assert(config->code_debug_ranges >= 0); assert(config->show_ref_count >= 0); assert(config->dump_refs >= 0); |
| You are visitor 01402503 — GeezerVison does not store the pages you look up. Best viewed with Netscape Navigator 4.7 or Internet Explorer 6 at 800×600. No cookies required. |