/* System module */ /* Various bits of information used by the interpreter are collected in module 'sys'. Function member: - exit(sts): raise SystemExit Data members: - stdin, stdout, stderr: standard file objects - modules: the table of modules (dictionary) - path: module search path (list of strings) - argv: script arguments (list of strings) - ps1, ps2: optional primary and secondary prompts (strings) */ #include "Python.h" #include "pycore_audit.h" // _Py_AuditHookEntry #include "pycore_call.h" // _PyObject_CallNoArgs() #include "pycore_ceval.h" // _PyEval_SetAsyncGenFinalizer() #include "pycore_dict.h" // _PyDict_GetItemWithError() #include "pycore_frame.h" // _PyInterpreterFrame #include "pycore_initconfig.h" // _PyStatus_EXCEPTION() #include "pycore_long.h" // _PY_LONG_MAX_STR_DIGITS_THRESHOLD #include "pycore_modsupport.h" // _PyModule_CreateInitialized() #include "pycore_namespace.h" // _PyNamespace_New() #include "pycore_object.h" // _PyObject_DebugTypeStats() #include "pycore_pathconfig.h" // _PyPathConfig_ComputeSysPath0() #include "pycore_pyerrors.h" // _PyErr_GetRaisedException() #include "pycore_pylifecycle.h" // _PyErr_WriteUnraisableDefaultHook() #include "pycore_pymath.h" // _PY_SHORT_FLOAT_REPR #include "pycore_pymem.h" // _PyMem_SetDefaultAllocator() #include "pycore_pystate.h" // _PyThreadState_GET() #include "pycore_pystats.h" // _Py_PrintSpecializationStats() #include "pycore_structseq.h" // _PyStructSequence_InitBuiltinWithFlags() #include "pycore_sysmodule.h" // export _PySys_GetSizeOf() #include "pycore_tuple.h" // _PyTuple_FromArray() #include "pydtrace.h" // PyDTrace_AUDIT() #include "osdefs.h" // DELIM #include "stdlib_module_names.h" // _Py_stdlib_module_names #ifdef HAVE_UNISTD_H # include // getpid() #endif #ifdef MS_WINDOWS # define WIN32_LEAN_AND_MEAN # include #endif /* MS_WINDOWS */ #ifdef MS_COREDLL extern void *PyWin_DLLhModule; /* A string loaded from the DLL at startup: */ extern const char *PyWin_DLLVersionString; #endif #ifdef __EMSCRIPTEN__ # include #endif #ifdef HAVE_FCNTL_H # include #endif /*[clinic input] module sys [clinic start generated code]*/ /*[clinic end generated code: output=da39a3ee5e6b4b0d input=3726b388feee8cea]*/ #include "clinic/sysmodule.c.h" PyObject * _PySys_GetAttr(PyThreadState *tstate, PyObject *name) { PyObject *sd = tstate->interp->sysdict; if (sd == NULL) { return NULL; } PyObject *exc = _PyErr_GetRaisedException(tstate); /* XXX Suppress a new exception if it was raised and restore * the old one. */ PyObject *value = _PyDict_GetItemWithError(sd, name); _PyErr_SetRaisedException(tstate, exc); return value; } static PyObject * _PySys_GetObject(PyInterpreterState *interp, const char *name) { PyObject *sysdict = interp->sysdict; if (sysdict == NULL) { return NULL; } PyObject *value; if (PyDict_GetItemStringRef(sysdict, name, &value) != 1) { return NULL; } Py_DECREF(value); // return a borrowed reference return value; } PyObject * PySys_GetObject(const char *name) { PyThreadState *tstate = _PyThreadState_GET(); PyObject *exc = _PyErr_GetRaisedException(tstate); PyObject *value = _PySys_GetObject(tstate->interp, name); /* XXX Suppress a new exception if it was raised and restore * the old one. */ if (_PyErr_Occurred(tstate)) { PyErr_FormatUnraisable("Exception ignored in PySys_GetObject()"); } _PyErr_SetRaisedException(tstate, exc); return value; } static int sys_set_object(PyInterpreterState *interp, PyObject *key, PyObject *v) { if (key == NULL) { return -1; } PyObject *sd = interp->sysdict; if (v == NULL) { if (PyDict_Pop(sd, key, NULL) < 0) { return -1; } return 0; } else { return PyDict_SetItem(sd, key, v); } } int _PySys_SetAttr(PyObject *key, PyObject *v) { PyInterpreterState *interp = _PyInterpreterState_GET(); return sys_set_object(interp, key, v); } static int sys_set_object_str(PyInterpreterState *interp, const char *name, PyObject *v) { PyObject *key = v ? PyUnicode_InternFromString(name) : PyUnicode_FromString(name); int r = sys_set_object(interp, key, v); Py_XDECREF(key); return r; } int PySys_SetObject(const char *name, PyObject *v) { PyInterpreterState *interp = _PyInterpreterState_GET(); return sys_set_object_str(interp, name, v); } int _PySys_ClearAttrString(PyInterpreterState *interp, const char *name, int verbose) { if (verbose) { PySys_WriteStderr("# clear sys.%s\n", name); } /* To play it safe, we set the attr to None instead of deleting it. */ if (PyDict_SetItemString(interp->sysdict, name, Py_None) < 0) { return -1; } return 0; } static int should_audit(PyInterpreterState *interp) { /* interp must not be NULL, but test it just in case for extra safety */ assert(interp != NULL); if (!interp) { return 0; } return (interp->runtime->audit_hooks.head || interp->audit_hooks || PyDTrace_AUDIT_ENABLED()); } static int sys_audit_tstate(PyThreadState *ts, const char *event, const char *argFormat, va_list vargs) { assert(event != NULL); assert(!argFormat || !strchr(argFormat, 'N')); if (!ts) { /* Audit hooks cannot be called with a NULL thread state */ return 0; } /* The current implementation cannot be called if tstate is not the current Python thread state. */ assert(ts == _PyThreadState_GET()); /* Early exit when no hooks are registered */ PyInterpreterState *is = ts->interp; if (!should_audit(is)) { return 0; } PyObject *eventName = NULL; PyObject *eventArgs = NULL; PyObject *hooks = NULL; PyObject *hook = NULL; int res = -1; int dtrace = PyDTrace_AUDIT_ENABLED(); PyObject *exc = _PyErr_GetRaisedException(ts); /* Initialize event args now */ if (argFormat && argFormat[0]) { eventArgs = Py_VaBuildValue(argFormat, vargs); if (eventArgs && !PyTuple_Check(eventArgs)) { PyObject *argTuple = PyTuple_Pack(1, eventArgs); Py_SETREF(eventArgs, argTuple); } } else { eventArgs = PyTuple_New(0); } if (!eventArgs) { goto exit; } /* Call global hooks * * We don't worry about any races on hooks getting added, * since that would not leave is in an inconsistent state. */ _Py_AuditHookEntry *e = is->runtime->audit_hooks.head; for (; e; e = e->next) { if (e->hookCFunction(event, eventArgs, e->userData) < 0) { goto exit; } } /* Dtrace USDT point */ if (dtrace) { PyDTrace_AUDIT(event, (void *)eventArgs); } /* Call interpreter hooks */ if (is->audit_hooks) { eventName = PyUnicode_FromString(event); if (!eventName) { goto exit; } hooks = PyObject_GetIter(is->audit_hooks); if (!hooks) { goto exit; } /* Disallow tracing in hooks unless explicitly enabled */ PyThreadState_EnterTracing(ts); while ((hook = PyIter_Next(hooks)) != NULL) { PyObject *o; int canTrace = PyObject_GetOptionalAttr(hook, &_Py_ID(__cantrace__), &o); if (o) { canTrace = PyObject_IsTrue(o); Py_DECREF(o); } if (canTrace < 0) { break; } if (canTrace) { PyThreadState_LeaveTracing(ts); } PyObject* args[2] = {eventName, eventArgs}; o = _PyObject_VectorcallTstate(ts, hook, args, 2, NULL); if (canTrace) { PyThreadState_EnterTracing(ts); } if (!o) { break; } Py_DECREF(o); Py_CLEAR(hook); } PyThreadState_LeaveTracing(ts); if (_PyErr_Occurred(ts)) { goto exit; } } res = 0; exit: Py_XDECREF(hook); Py_XDECREF(hooks); Py_XDECREF(eventName); Py_XDECREF(eventArgs); if (!res) { _PyErr_SetRaisedException(ts, exc); } else { assert(_PyErr_Occurred(ts)); Py_XDECREF(exc); } return res; } int _PySys_Audit(PyThreadState *tstate, const char *event, const char *argFormat, ...) { va_list vargs; va_start(vargs, argFormat); int res = sys_audit_tstate(tstate, event, argFormat, vargs); va_end(vargs); return res; } int PySys_Audit(const char *event, const char *argFormat, ...) { PyThreadState *tstate = _PyThreadState_GET(); va_list vargs; va_start(vargs, argFormat); int res = sys_audit_tstate(tstate, event, argFormat, vargs); va_end(vargs); return res; } int PySys_AuditTuple(const char *event, PyObject *args) { if (args == NULL) { return PySys_Audit(event, NULL); } if (!PyTuple_Check(args)) { PyErr_Format(PyExc_TypeError, "args must be tuple, got %s", Py_TYPE(args)->tp_name); return -1; } return PySys_Audit(event, "O", args); } /* We expose this function primarily for our own cleanup during * finalization. In general, it should not need to be called, * and as such the function is not exported. * * Must be finalizing to clear hooks */ void _PySys_ClearAuditHooks(PyThreadState *ts) { assert(ts != NULL); if (!ts) { return; } _PyRuntimeState *runtime = ts->interp->runtime; /* The hooks are global so we have to check for runtime finalization. */ PyThreadState *finalizing = _PyRuntimeState_GetFinalizing(runtime); assert(finalizing == ts); if (finalizing != ts) { return; } const PyConfig *config = _PyInterpreterState_GetConfig(ts->interp); if (config->verbose) { PySys_WriteStderr("# clear sys.audit hooks\n"); } /* Hooks can abort later hooks for this event, but cannot abort the clear operation itself. */ _PySys_Audit(ts, "cpython._PySys_ClearAuditHooks", NULL); _PyErr_Clear(ts); /* We don't worry about the very unlikely race right here, * since it's entirely benign. Nothing else removes entries * from the list and adding an entry right now would not cause * any trouble. */ _Py_AuditHookEntry *e = runtime->audit_hooks.head, *n; runtime->audit_hooks.head = NULL; while (e) { n = e->next; PyMem_RawFree(e); e = n; } } static void add_audit_hook_entry_unlocked(_PyRuntimeState *runtime, _Py_AuditHookEntry *entry) { if (runtime->audit_hooks.head == NULL) { runtime->audit_hooks.head = entry; } else { _Py_AuditHookEntry *last = runtime->audit_hooks.head; while (last->next) { last = last->next; } last->next = entry; } } int PySys_AddAuditHook(Py_AuditHookFunction hook, void *userData) { /* tstate can be NULL, so access directly _PyRuntime: PySys_AddAuditHook() can be called before Python is initialized. */ _PyRuntimeState *runtime = &_PyRuntime; PyThreadState *tstate; if (runtime->initialized) { tstate = _PyThreadState_GET(); } else { tstate = NULL; } /* Invoke existing audit hooks to allow them an opportunity to abort. */ /* Cannot invoke hooks until we are initialized */ if (tstate != NULL) { if (_PySys_Audit(tstate, "sys.addaudithook", NULL) < 0) { if (_PyErr_ExceptionMatches(tstate, PyExc_RuntimeError)) { /* We do not report errors derived from RuntimeError */ _PyErr_Clear(tstate); return 0; } return -1; } } _Py_AuditHookEntry *e = (_Py_AuditHookEntry*)PyMem_RawMalloc( sizeof(_Py_AuditHookEntry)); if (!e) { if (tstate != NULL) { _PyErr_NoMemory(tstate); } return -1; } e->next = NULL; e->hookCFunction = (Py_AuditHookFunction)hook; e->userData = userData; PyMutex_Lock(&runtime->audit_hooks.mutex); add_audit_hook_entry_unlocked(runtime, e); PyMutex_Unlock(&runtime->audit_hooks.mutex); return 0; } /*[clinic input] sys.addaudithook hook: object Adds a new audit hook callback. [clinic start generated code]*/ static PyObject * sys_addaudithook_impl(PyObject *module, PyObject *hook) /*[clinic end generated code: output=4f9c17aaeb02f44e input=0f3e191217a45e34]*/ { PyThreadState *tstate = _PyThreadState_GET(); /* Invoke existing audit hooks to allow them an opportunity to abort. */ if (_PySys_Audit(tstate, "sys.addaudithook", NULL) < 0) { if (_PyErr_ExceptionMatches(tstate, PyExc_Exception)) { /* We do not report errors derived from Exception */ _PyErr_Clear(tstate); Py_RETURN_NONE; } return NULL; } PyInterpreterState *interp = tstate->interp; if (interp->audit_hooks == NULL) { interp->audit_hooks = PyList_New(0); if (interp->audit_hooks == NULL) { return NULL; } /* Avoid having our list of hooks show up in the GC module */ PyObject_GC_UnTrack(interp->audit_hooks); } if (PyList_Append(interp->audit_hooks, hook) < 0) { return NULL; } Py_RETURN_NONE; } PyDoc_STRVAR(audit_doc, "audit($module, event, /, *args)\n\ --\n\ \n\ Passes the event to any audit hooks that are attached."); static PyObject * sys_audit(PyObject *self, PyObject *const *args, Py_ssize_t argc) { PyThreadState *tstate = _PyThreadState_GET(); _Py_EnsureTstateNotNULL(tstate); if (argc == 0) { _PyErr_SetString(tstate, PyExc_TypeError, "audit() missing 1 required positional argument: " "'event'"); return NULL; } assert(args[0] != NULL); if (!should_audit(tstate->interp)) { Py_RETURN_NONE; } PyObject *auditEvent = args[0]; if (!auditEvent) { _PyErr_SetString(tstate, PyExc_TypeError, "expected str for argument 'event'"); return NULL; } if (!PyUnicode_Check(auditEvent)) { _PyErr_Format(tstate, PyExc_TypeError, "expected str for argument 'event', not %.200s", Py_TYPE(auditEvent)->tp_name); return NULL; } const char *event = PyUnicode_AsUTF8(auditEvent); if (!event) { return NULL; } PyObject *auditArgs = _PyTuple_FromArray(args + 1, argc - 1); if (!auditArgs) { return NULL; } int res = _PySys_Audit(tstate, event, "O", auditArgs); Py_DECREF(auditArgs); if (res < 0) { return NULL; } Py_RETURN_NONE; } static PyObject * sys_breakpointhook(PyObject *self, PyObject *const *args, Py_ssize_t nargs, PyObject *keywords) { PyThreadState *tstate = _PyThreadState_GET(); assert(!_PyErr_Occurred(tstate)); char *envar = Py_GETENV("PYTHONBREAKPOINT"); if (envar == NULL || strlen(envar) == 0) { envar = "pdb.set_trace"; } else if (!strcmp(envar, "0")) { /* The breakpoint is explicitly no-op'd. */ Py_RETURN_NONE; } /* According to POSIX the string returned by getenv() might be invalidated * or the string content might be overwritten by a subsequent call to * getenv(). Since importing a module can performs the getenv() calls, * we need to save a copy of envar. */ envar = _PyMem_RawStrdup(envar); if (envar == NULL) { _PyErr_NoMemory(tstate); return NULL; } const char *last_dot = strrchr(envar, '.'); const char *attrname = NULL; PyObject *modulepath = NULL; if (last_dot == NULL) { /* The breakpoint is a built-in, e.g. PYTHONBREAKPOINT=int */ modulepath = PyUnicode_FromString("builtins"); attrname = envar; } else if (last_dot != envar) { /* Split on the last dot; */ modulepath = PyUnicode_FromStringAndSize(envar, last_dot - envar); attrname = last_dot + 1; } else { goto warn; } if (modulepath == NULL) { PyMem_RawFree(envar); return NULL; } PyObject *module = PyImport_Import(modulepath); Py_DECREF(modulepath); if (module == NULL) { if (_PyErr_ExceptionMatches(tstate, PyExc_ImportError)) { goto warn; } PyMem_RawFree(envar); return NULL; } PyObject *hook = PyObject_GetAttrString(module, attrname); Py_DECREF(module); if (hook == NULL) { if (_PyErr_ExceptionMatches(tstate, PyExc_AttributeError)) { goto warn; } PyMem_RawFree(envar); return NULL; } PyMem_RawFree(envar); PyObject *retval = PyObject_Vectorcall(hook, args, nargs, keywords); Py_DECREF(hook); return retval; warn: /* If any of the imports went wrong, then warn and ignore. */ _PyErr_Clear(tstate); int status = PyErr_WarnFormat( PyExc_RuntimeWarning, 0, "Ignoring unimportable $PYTHONBREAKPOINT: \"%s\"", envar); PyMem_RawFree(envar); if (status < 0) { /* Printing the warning raised an exception. */ return NULL; } /* The warning was (probably) issued. */ Py_RETURN_NONE; } PyDoc_STRVAR(breakpointhook_doc, "breakpointhook($module, /, *args, **kwargs)\n" "--\n" "\n" "This hook function is called by built-in breakpoint().\n" ); /* Write repr(o) to sys.stdout using sys.stdout.encoding and 'backslashreplace' error handler. If sys.stdout has a buffer attribute, use sys.stdout.buffer.write(encoded), otherwise redecode the string and use sys.stdout.write(redecoded). Helper function for sys_displayhook(). */ static int sys_displayhook_unencodable(PyObject *outf, PyObject *o) { PyObject *stdout_encoding = NULL; PyObject *encoded, *escaped_str, *repr_str, *buffer, *result; const char *stdout_encoding_str; int ret; stdout_encoding = PyObject_GetAttr(outf, &_Py_ID(encoding)); if (stdout_encoding == NULL) goto error; stdout_encoding_str = PyUnicode_AsUTF8(stdout_encoding); if (stdout_encoding_str == NULL) goto error; repr_str = PyObject_Repr(o); if (repr_str == NULL) goto error; encoded = PyUnicode_AsEncodedString(repr_str, stdout_encoding_str, "backslashreplace"); Py_DECREF(repr_str); if (encoded == NULL) goto error; if (PyObject_GetOptionalAttr(outf, &_Py_ID(buffer), &buffer) < 0) { Py_DECREF(encoded); goto error; } if (buffer) { result = PyObject_CallMethodOneArg(buffer, &_Py_ID(write), encoded); Py_DECREF(buffer); Py_DECREF(encoded); if (result == NULL) goto error; Py_DECREF(result); } else { escaped_str = PyUnicode_FromEncodedObject(encoded, stdout_encoding_str, "strict"); Py_DECREF(encoded); if (PyFile_WriteObject(escaped_str, outf, Py_PRINT_RAW) != 0) { Py_DECREF(escaped_str); goto error; } Py_DECREF(escaped_str); } ret = 0; goto finally; error: ret = -1; finally: Py_XDECREF(stdout_encoding); return ret; } /*[clinic input] sys.displayhook object as o: object / Print an object to sys.stdout and also save it in builtins._ [clinic start generated code]*/ static PyObject * sys_displayhook(PyObject *module, PyObject *o) /*[clinic end generated code: output=347477d006df92ed input=08ba730166d7ef72]*/ { PyObject *outf; PyObject *builtins; PyThreadState *tstate = _PyThreadState_GET(); builtins = PyImport_GetModule(&_Py_ID(builtins)); if (builtins == NULL) { if (!_PyErr_Occurred(tstate)) { _PyErr_SetString(tstate, PyExc_RuntimeError, "lost builtins module"); } return NULL; } Py_DECREF(builtins); /* Print value except if None */ /* After printing, also assign to '_' */ /* Before, set '_' to None to avoid recursion */ if (o == Py_None) { Py_RETURN_NONE; } if (PyObject_SetAttr(builtins, _Py_LATIN1_CHR('_'), Py_None) != 0) return NULL; outf = _PySys_GetAttr(tstate, &_Py_ID(stdout)); if (outf == NULL || outf == Py_None) { _PyErr_SetString(tstate, PyExc_RuntimeError, "lost sys.stdout"); return NULL; } if (PyFile_WriteObject(o, outf, 0) != 0) { if (_PyErr_ExceptionMatches(tstate, PyExc_UnicodeEncodeError)) { int err; /* repr(o) is not encodable to sys.stdout.encoding with * sys.stdout.errors error handler (which is probably 'strict') */ _PyErr_Clear(tstate); err = sys_displayhook_unencodable(outf, o); if (err) { return NULL; } } else { return NULL; } } if (PyFile_WriteObject(_Py_LATIN1_CHR('\n'), outf, Py_PRINT_RAW) != 0) return NULL; if (PyObject_SetAttr(builtins, _Py_LATIN1_CHR('_'), o) != 0) return NULL; Py_RETURN_NONE; } /*[clinic input] sys.excepthook exctype: object value: object traceback: object / Handle an exception by displaying it with a traceback on sys.stderr. [clinic start generated code]*/ static PyObject * sys_excepthook_impl(PyObject *module, PyObject *exctype, PyObject *value, PyObject *traceback) /*[clinic end generated code: output=18d99fdda21b6b5e input=ecf606fa826f19d9]*/ { PyErr_Display(NULL, value, traceback); Py_RETURN_NONE; } /*[clinic input] sys.exception Return the current exception. Return the most recent exception caught by an except clause in the current stack frame or in an older stack frame, or None if no such exception exists. [clinic start generated code]*/ static PyObject * sys_exception_impl(PyObject *module) /*[clinic end generated code: output=2381ee2f25953e40 input=c88fbb94b6287431]*/ { _PyErr_StackItem *err_info = _PyErr_GetTopmostException(_PyThreadState_GET()); if (err_info->exc_value != NULL) { return Py_NewRef(err_info->exc_value); } Py_RETURN_NONE; } /*[clinic input] sys.exc_info Return current exception information: (type, value, traceback). Return information about the most recent exception caught by an except clause in the current stack frame or in an older stack frame. [clinic start generated code]*/ static PyObject * sys_exc_info_impl(PyObject *module) /*[clinic end generated code: output=3afd0940cf3a4d30 input=b5c5bf077788a3e5]*/ { _PyErr_StackItem *err_info = _PyErr_GetTopmostException(_PyThreadState_GET()); return _PyErr_StackItemToExcInfoTuple(err_info); } /*[clinic input] sys.unraisablehook unraisable: object / Handle an unraisable exception. The unraisable argument has the following attributes: * exc_type: Exception type. * exc_value: Exception value, can be None. * exc_traceback: Exception traceback, can be None. * err_msg: Error message, can be None. * object: Object causing the exception, can be None. [clinic start generated code]*/ static PyObject * sys_unraisablehook(PyObject *module, PyObject *unraisable) /*[clinic end generated code: output=bb92838b32abaa14 input=ec3af148294af8d3]*/ { return _PyErr_WriteUnraisableDefaultHook(unraisable); } /*[clinic input] sys.exit status: object = None / Exit the interpreter by raising SystemExit(status). If the status is omitted or None, it defaults to zero (i.e., success). If the status is an integer, it will be used as the system exit status. If it is another kind of object, it will be printed and the system exit status will be one (i.e., failure). [clinic start generated code]*/ static PyObject * sys_exit_impl(PyObject *module, PyObject *status) /*[clinic end generated code: output=13870986c1ab2ec0 input=b86ca9497baa94f2]*/ { /* Raise SystemExit so callers may catch it or clean up. */ PyErr_SetObject(PyExc_SystemExit, status); return NULL; } static PyObject * get_utf8_unicode(void) { _Py_DECLARE_STR(utf_8, "utf-8"); PyObject *ret = &_Py_STR(utf_8); return Py_NewRef(ret); } /*[clinic input] sys.getdefaultencoding Return the current default encoding used by the Unicode implementation. [clinic start generated code]*/ static PyObject * sys_getdefaultencoding_impl(PyObject *module) /*[clinic end generated code: output=256d19dfcc0711e6 input=d416856ddbef6909]*/ { return get_utf8_unicode(); } /*[clinic input] sys.getfilesystemencoding Return the encoding used to convert Unicode filenames to OS filenames. [clinic start generated code]*/ static PyObject * sys_getfilesystemencoding_impl(PyObject *module) /*[clinic end generated code: output=1dc4bdbe9be44aa7 input=8475f8649b8c7d8c]*/ { PyInterpreterState *interp = _PyInterpreterState_GET(); const PyConfig *config = _PyInterpreterState_GetConfig(interp); if (wcscmp(config->filesystem_encoding, L"utf-8") == 0) { return get_utf8_unicode(); } PyObject *u = PyUnicode_FromWideChar(config->filesystem_encoding, -1); if (u == NULL) { return NULL; } _PyUnicode_InternImmortal(interp, &u); return u; } /*[clinic input] sys.getfilesystemencodeerrors Return the error mode used Unicode to OS filename conversion. [clinic start generated code]*/ static PyObject * sys_getfilesystemencodeerrors_impl(PyObject *module) /*[clinic end generated code: output=ba77b36bbf7c96f5 input=22a1e8365566f1e5]*/ { PyInterpreterState *interp = _PyInterpreterState_GET(); const PyConfig *config = _PyInterpreterState_GetConfig(interp); PyObject *u = PyUnicode_FromWideChar(config->filesystem_errors, -1); if (u == NULL) { return NULL; } _PyUnicode_InternImmortal(interp, &u); return u; } /*[clinic input] sys.intern string as s: unicode / ``Intern'' the given string. This enters the string in the (global) table of interned strings whose purpose is to speed up dictionary lookups. Return the string itself or the previously interned string object with the same value. [clinic start generated code]*/ static PyObject * sys_intern_impl(PyObject *module, PyObject *s) /*[clinic end generated code: output=be680c24f5c9e5d6 input=849483c006924e2f]*/ { if (PyUnicode_CheckExact(s)) { PyInterpreterState *interp = _PyInterpreterState_GET(); Py_INCREF(s); _PyUnicode_InternMortal(interp, &s); return s; } else { PyErr_Format(PyExc_TypeError, "can't intern %.400s", Py_TYPE(s)->tp_name); return NULL; } } /*[clinic input] sys._is_interned -> bool string: unicode / Return True if the given string is "interned". [clinic start generated code]*/ static int sys__is_interned_impl(PyObject *module, PyObject *string) /*[clinic end generated code: output=c3678267b4e9d7ed input=039843e17883b606]*/ { return PyUnicode_CHECK_INTERNED(string); } /* * Cached interned string objects used for calling the profile and * trace functions. */ static PyObject *whatstrings[8] = { &_Py_ID(call), &_Py_ID(exception), &_Py_ID(line), &_Py_ID(return), &_Py_ID(c_call), &_Py_ID(c_exception), &_Py_ID(c_return), &_Py_ID(opcode), }; static PyObject * call_trampoline(PyThreadState *tstate, PyObject* callback, PyFrameObject *frame, int what, PyObject *arg) { /* call the Python-level function */ if (arg == NULL) { arg = Py_None; } PyObject *args[3] = {(PyObject *)frame, whatstrings[what], arg}; PyObject *result = _PyObject_VectorcallTstate(tstate, callback, args, 3, NULL); return result; } static int profile_trampoline(PyObject *self, PyFrameObject *frame, int what, PyObject *arg) { PyThreadState *tstate = _PyThreadState_GET(); PyObject *result = call_trampoline(tstate, self, frame, what, arg); if (result == NULL) { _PyEval_SetProfile(tstate, NULL, NULL); return -1; } Py_DECREF(result); return 0; } static int trace_trampoline(PyObject *self, PyFrameObject *frame, int what, PyObject *arg) { PyObject *callback; if (what == PyTrace_CALL) { callback = self; } else { callback = frame->f_trace; } if (callback == NULL) { return 0; } PyThreadState *tstate = _PyThreadState_GET(); PyObject *result = call_trampoline(tstate, callback, frame, what, arg); if (result == NULL) { _PyEval_SetTrace(tstate, NULL, NULL); Py_CLEAR(frame->f_trace); return -1; } if (result != Py_None) { Py_XSETREF(frame->f_trace, result); } else { Py_DECREF(result); } return 0; } /*[clinic input] sys.settrace function: object / Set the global debug tracing function. It will be called on each function call. See the debugger chapter in the library manual. [clinic start generated code]*/ static PyObject * sys_settrace(PyObject *module, PyObject *function) /*[clinic end generated code: output=999d12e9d6ec4678 input=8107feb01c5f1c4e]*/ { PyThreadState *tstate = _PyThreadState_GET(); if (function == Py_None) { if (_PyEval_SetTrace(tstate, NULL, NULL) < 0) { return NULL; } } else { if (_PyEval_SetTrace(tstate, trace_trampoline, function) < 0) { return NULL; } } Py_RETURN_NONE; } /*[clinic input] sys._settraceallthreads function as arg: object / Set the global debug tracing function in all running threads belonging to the current interpreter. It will be called on each function call. See the debugger chapter in the library manual. [clinic start generated code]*/ static PyObject * sys__settraceallthreads(PyObject *module, PyObject *arg) /*[clinic end generated code: output=161cca30207bf3ca input=d4bde1f810d73675]*/ { PyObject* argument = NULL; Py_tracefunc func = NULL; if (arg != Py_None) { func = trace_trampoline; argument = arg; } PyEval_SetTraceAllThreads(func, argument); Py_RETURN_NONE; } /*[clinic input] sys.gettrace Return the global debug tracing function set with sys.settrace. See the debugger chapter in the library manual. [clinic start generated code]*/ static PyObject * sys_gettrace_impl(PyObject *module) /*[clinic end generated code: output=e97e3a4d8c971b6e input=373b51bb2147f4d8]*/ { PyThreadState *tstate = _PyThreadState_GET(); PyObject *temp = tstate->c_traceobj; if (temp == NULL) temp = Py_None; return Py_NewRef(temp); } /*[clinic input] sys.setprofile function: object / Set the profiling function. It will be called on each function call and return. See the profiler chapter in the library manual. [clinic start generated code]*/ static PyObject * sys_setprofile(PyObject *module, PyObject *function) /*[clinic end generated code: output=1c3503105939db9c input=055d0d7961413a62]*/ { PyThreadState *tstate = _PyThreadState_GET(); if (function == Py_None) { if (_PyEval_SetProfile(tstate, NULL, NULL) < 0) { return NULL; } } else { if (_PyEval_SetProfile(tstate, profile_trampoline, function) < 0) { return NULL; } } Py_RETURN_NONE; } /*[clinic input] sys._setprofileallthreads function as arg: object / Set the profiling function in all running threads belonging to the current interpreter. It will be called on each function call and return. See the profiler chapter in the library manual. [clinic start generated code]*/ static PyObject * sys__setprofileallthreads(PyObject *module, PyObject *arg) /*[clinic end generated code: output=2d61319e27b309fe input=a10589439ba20cee]*/ { PyObject* argument = NULL; Py_tracefunc func = NULL; if (arg != Py_None) { func = profile_trampoline; argument = arg; } PyEval_SetProfileAllThreads(func, argument); Py_RETURN_NONE; } /*[clinic input] sys.getprofile Return the profiling function set with sys.setprofile. See the profiler chapter in the library manual. [clinic start generated code]*/ static PyObject * sys_getprofile_impl(PyObject *module) /*[clinic end generated code: output=579b96b373448188 input=1b3209d89a32965d]*/ { PyThreadState *tstate = _PyThreadState_GET(); PyObject *temp = tstate->c_profileobj; if (temp == NULL) temp = Py_None; return Py_NewRef(temp); } /*[clinic input] sys.setswitchinterval interval: double / Set the ideal thread switching delay inside the Python interpreter. The actual frequency of switching threads can be lower if the interpreter executes long sequences of uninterruptible code (this is implementation-specific and workload-dependent). The parameter must represent the desired switching delay in seconds A typical value is 0.005 (5 milliseconds). [clinic start generated code]*/ static PyObject * sys_setswitchinterval_impl(PyObject *module, double interval) /*[clinic end generated code: output=65a19629e5153983 input=561b477134df91d9]*/ { if (interval <= 0.0) { PyErr_SetString(PyExc_ValueError, "switch interval must be strictly positive"); return NULL; } _PyEval_SetSwitchInterval((unsigned long) (1e6 * interval)); Py_RETURN_NONE; } /*[clinic input] sys.getswitchinterval -> double Return the current thread switch interval; see sys.setswitchinterval(). [clinic start generated code]*/ static double sys_getswitchinterval_impl(PyObject *module) /*[clinic end generated code: output=a38c277c85b5096d input=bdf9d39c0ebbbb6f]*/ { return 1e-6 * _PyEval_GetSwitchInterval(); } /*[clinic input] sys.setrecursionlimit limit as new_limit: int / Set the maximum depth of the Python interpreter stack to n. This limit prevents infinite recursion from causing an overflow of the C stack and crashing Python. The highest possible limit is platform- dependent. [clinic start generated code]*/ static PyObject * sys_setrecursionlimit_impl(PyObject *module, int new_limit) /*[clinic end generated code: output=35e1c64754800ace input=b0f7a23393924af3]*/ { PyThreadState *tstate = _PyThreadState_GET(); if (new_limit < 1) { _PyErr_SetString(tstate, PyExc_ValueError, "recursion limit must be greater or equal than 1"); return NULL; } /* Reject too low new limit if the current recursion depth is higher than the new low-water mark. */ int depth = tstate->py_recursion_limit - tstate->py_recursion_remaining; if (depth >= new_limit) { _PyErr_Format(tstate, PyExc_RecursionError, "cannot set the recursion limit to %i at " "the recursion depth %i: the limit is too low", new_limit, depth); return NULL; } Py_SetRecursionLimit(new_limit); Py_RETURN_NONE; } /*[clinic input] sys.set_coroutine_origin_tracking_depth depth: int Enable or disable origin tracking for coroutine objects in this thread. Coroutine objects will track 'depth' frames of traceback information about where they came from, available in their cr_origin attribute. Set a depth of 0 to disable. [clinic start generated code]*/ static PyObject * sys_set_coroutine_origin_tracking_depth_impl(PyObject *module, int depth) /*[clinic end generated code: output=0a2123c1cc6759c5 input=a1d0a05f89d2c426]*/ { if (_PyEval_SetCoroutineOriginTrackingDepth(depth) < 0) { return NULL; } Py_RETURN_NONE; } /*[clinic input] sys.get_coroutine_origin_tracking_depth -> int Check status of origin tracking for coroutine objects in this thread. [clinic start generated code]*/ static int sys_get_coroutine_origin_tracking_depth_impl(PyObject *module) /*[clinic end generated code: output=3699f7be95a3afb8 input=335266a71205b61a]*/ { return _PyEval_GetCoroutineOriginTrackingDepth(); } static PyTypeObject AsyncGenHooksType; PyDoc_STRVAR(asyncgen_hooks_doc, "asyncgen_hooks\n\ \n\ A named tuple providing information about asynchronous\n\ generators hooks. The attributes are read only."); static PyStructSequence_Field asyncgen_hooks_fields[] = { {"firstiter", "Hook to intercept first iteration"}, {"finalizer", "Hook to intercept finalization"}, {0} }; static PyStructSequence_Desc asyncgen_hooks_desc = { "asyncgen_hooks", /* name */ asyncgen_hooks_doc, /* doc */ asyncgen_hooks_fields , /* fields */ 2 }; static PyObject * sys_set_asyncgen_hooks(PyObject *self, PyObject *args, PyObject *kw) { static char *keywords[] = {"firstiter", "finalizer", NULL}; PyObject *firstiter = NULL; PyObject *finalizer = NULL; if (!PyArg_ParseTupleAndKeywords( args, kw, "|OO", keywords, &firstiter, &finalizer)) { return NULL; } if (finalizer && finalizer != Py_None) { if (!PyCallable_Check(finalizer)) { PyErr_Format(PyExc_TypeError, "callable finalizer expected, got %.50s", Py_TYPE(finalizer)->tp_name); return NULL; } } if (firstiter && firstiter != Py_None) { if (!PyCallable_Check(firstiter)) { PyErr_Format(PyExc_TypeError, "callable firstiter expected, got %.50s", Py_TYPE(firstiter)->tp_name); return NULL; } } PyObject *cur_finalizer = _PyEval_GetAsyncGenFinalizer(); if (finalizer && finalizer != Py_None) { if (_PyEval_SetAsyncGenFinalizer(finalizer) < 0) { return NULL; } } else if (finalizer == Py_None && _PyEval_SetAsyncGenFinalizer(NULL) < 0) { return NULL; } if (firstiter && firstiter != Py_None) { if (_PyEval_SetAsyncGenFirstiter(firstiter) < 0) { goto error; } } else if (firstiter == Py_None && _PyEval_SetAsyncGenFirstiter(NULL) < 0) { goto error; } Py_RETURN_NONE; error: _PyEval_SetAsyncGenFinalizer(cur_finalizer); return NULL; } PyDoc_STRVAR(set_asyncgen_hooks_doc, "set_asyncgen_hooks([firstiter] [, finalizer])\n\ \n\ Set a finalizer for async generators objects." ); /*[clinic input] sys.get_asyncgen_hooks Return the installed asynchronous generators hooks. This returns a namedtuple of the form (firstiter, finalizer). [clinic start generated code]*/ static PyObject * sys_get_asyncgen_hooks_impl(PyObject *module) /*[clinic end generated code: output=53a253707146f6cf input=3676b9ea62b14625]*/ { PyObject *res; PyObject *firstiter = _PyEval_GetAsyncGenFirstiter(); PyObject *finalizer = _PyEval_GetAsyncGenFinalizer(); res = PyStructSequence_New(&AsyncGenHooksType); if (res == NULL) { return NULL; } if (firstiter == NULL) { firstiter = Py_None; } if (finalizer == NULL) { finalizer = Py_None; } PyStructSequence_SET_ITEM(res, 0, Py_NewRef(firstiter)); PyStructSequence_SET_ITEM(res, 1, Py_NewRef(finalizer)); return res; } static PyTypeObject Hash_InfoType; PyDoc_STRVAR(hash_info_doc, "hash_info\n\ \n\ A named tuple providing parameters used for computing\n\ hashes. The attributes are read only."); static PyStructSequence_Field hash_info_fields[] = { {"width", "width of the type used for hashing, in bits"}, {"modulus", "prime number giving the modulus on which the hash " "function is based"}, {"inf", "value to be used for hash of a positive infinity"}, {"nan", "value to be used for hash of a nan"}, {"imag", "multiplier used for the imaginary part of a complex number"}, {"algorithm", "name of the algorithm for hashing of str, bytes and " "memoryviews"}, {"hash_bits", "internal output size of hash algorithm"}, {"seed_bits", "seed size of hash algorithm"}, {"cutoff", "small string optimization cutoff"}, {NULL, NULL} }; static PyStructSequence_Desc hash_info_desc = { "sys.hash_info", hash_info_doc, hash_info_fields, 9, }; static PyObject * get_hash_info(PyThreadState *tstate) { PyObject *hash_info; int field = 0; PyHash_FuncDef *hashfunc; hash_info = PyStructSequence_New(&Hash_InfoType); if (hash_info == NULL) { return NULL; } hashfunc = PyHash_GetFuncDef(); #define SET_HASH_INFO_ITEM(CALL) \ do { \ PyObject *item = (CALL); \ if (item == NULL) { \ Py_CLEAR(hash_info); \ return NULL; \ } \ PyStructSequence_SET_ITEM(hash_info, field++, item); \ } while(0) SET_HASH_INFO_ITEM(PyLong_FromLong(8 * sizeof(Py_hash_t))); SET_HASH_INFO_ITEM(PyLong_FromSsize_t(_PyHASH_MODULUS)); SET_HASH_INFO_ITEM(PyLong_FromLong(_PyHASH_INF)); SET_HASH_INFO_ITEM(PyLong_FromLong(0)); // This is no longer used SET_HASH_INFO_ITEM(PyLong_FromLong(_PyHASH_IMAG)); SET_HASH_INFO_ITEM(PyUnicode_FromString(hashfunc->name)); SET_HASH_INFO_ITEM(PyLong_FromLong(hashfunc->hash_bits)); SET_HASH_INFO_ITEM(PyLong_FromLong(hashfunc->seed_bits)); SET_HASH_INFO_ITEM(PyLong_FromLong(Py_HASH_CUTOFF)); #undef SET_HASH_INFO_ITEM return hash_info; } /*[clinic input] sys.getrecursionlimit Return the current value of the recursion limit. The recursion limit is the maximum depth of the Python interpreter stack. This limit prevents infinite recursion from causing an overflow of the C stack and crashing Python. [clinic start generated code]*/ static PyObject * sys_getrecursionlimit_impl(PyObject *module) /*[clinic end generated code: output=d571fb6b4549ef2e input=1c6129fd2efaeea8]*/ { return PyLong_FromLong(Py_GetRecursionLimit()); } #ifdef MS_WINDOWS static PyTypeObject WindowsVersionType = {0, 0, 0, 0, 0, 0}; static PyStructSequence_Field windows_version_fields[] = { {"major", "Major version number"}, {"minor", "Minor version number"}, {"build", "Build number"}, {"platform", "Operating system platform"}, {"service_pack", "Latest Service Pack installed on the system"}, {"service_pack_major", "Service Pack major version number"}, {"service_pack_minor", "Service Pack minor version number"}, {"suite_mask", "Bit mask identifying available product suites"}, {"product_type", "System product type"}, {"platform_version", "Diagnostic version number"}, {0} }; static PyStructSequence_Desc windows_version_desc = { "sys.getwindowsversion", /* name */ sys_getwindowsversion__doc__, /* doc */ windows_version_fields, /* fields */ 5 /* For backward compatibility, only the first 5 items are accessible via indexing, the rest are name only */ }; static PyObject * _sys_getwindowsversion_from_kernel32(void) { #ifndef MS_WINDOWS_DESKTOP return NULL; #else HANDLE hKernel32; wchar_t kernel32_path[MAX_PATH]; LPVOID verblock; DWORD verblock_size; VS_FIXEDFILEINFO *ffi; UINT ffi_len; DWORD realMajor, realMinor, realBuild; Py_BEGIN_ALLOW_THREADS hKernel32 = GetModuleHandleW(L"kernel32.dll"); Py_END_ALLOW_THREADS if (!hKernel32 || !GetModuleFileNameW(hKernel32, kernel32_path, MAX_PATH)) { PyErr_SetFromWindowsErr(0); return NULL; } verblock_size = GetFileVersionInfoSizeW(kernel32_path, NULL); if (!verblock_size) { PyErr_SetFromWindowsErr(0); return NULL; } verblock = PyMem_RawMalloc(verblock_size); if (!verblock || !GetFileVersionInfoW(kernel32_path, 0, verblock_size, verblock) || !VerQueryValueW(verblock, L"", (LPVOID)&ffi, &ffi_len)) { PyErr_SetFromWindowsErr(0); return NULL; } realMajor = HIWORD(ffi->dwProductVersionMS); realMinor = LOWORD(ffi->dwProductVersionMS); realBuild = HIWORD(ffi->dwProductVersionLS); PyMem_RawFree(verblock); return Py_BuildValue("(kkk)", realMajor, realMinor, realBuild); #endif /* !MS_WINDOWS_DESKTOP */ } /* Disable deprecation warnings about GetVersionEx as the result is being passed straight through to the caller, who is responsible for using it correctly. */ #pragma warning(push) #pragma warning(disable:4996) /*[clinic input] sys.getwindowsversion Return info about the running version of Windows as a named tuple. The members are named: major, minor, build, platform, service_pack, service_pack_major, service_pack_minor, suite_mask, product_type and platform_version. For backward compatibility, only the first 5 items are available by indexing. All elements are numbers, except service_pack and platform_type which are strings, and platform_version which is a 3-tuple. Platform is always 2. Product_type may be 1 for a workstation, 2 for a domain controller, 3 for a server. Platform_version is a 3-tuple containing a version number that is intended for identifying the OS rather than feature detection. [clinic start generated code]*/ static PyObject * sys_getwindowsversion_impl(PyObject *module) /*[clinic end generated code: output=1ec063280b932857 input=73a228a328fee63a]*/ { PyObject *version; int pos = 0; OSVERSIONINFOEXW ver; if (PyObject_GetOptionalAttrString(module, "_cached_windows_version", &version) < 0) { return NULL; }; if (version && PyObject_TypeCheck(version, &WindowsVersionType)) { return version; } Py_XDECREF(version); ver.dwOSVersionInfoSize = sizeof(ver); if (!GetVersionExW((OSVERSIONINFOW*) &ver)) return PyErr_SetFromWindowsErr(0); version = PyStructSequence_New(&WindowsVersionType); if (version == NULL) return NULL; #define SET_VERSION_INFO(CALL) \ do { \ PyObject *item = (CALL); \ if (item == NULL) { \ goto error; \ } \ PyStructSequence_SET_ITEM(version, pos++, item); \ } while(0) SET_VERSION_INFO(PyLong_FromLong(ver.dwMajorVersion)); SET_VERSION_INFO(PyLong_FromLong(ver.dwMinorVersion)); SET_VERSION_INFO(PyLong_FromLong(ver.dwBuildNumber)); SET_VERSION_INFO(PyLong_FromLong(ver.dwPlatformId)); SET_VERSION_INFO(PyUnicode_FromWideChar(ver.szCSDVersion, -1)); SET_VERSION_INFO(PyLong_FromLong(ver.wServicePackMajor)); SET_VERSION_INFO(PyLong_FromLong(ver.wServicePackMinor)); SET_VERSION_INFO(PyLong_FromLong(ver.wSuiteMask)); SET_VERSION_INFO(PyLong_FromLong(ver.wProductType)); // GetVersion will lie if we are running in a compatibility mode. // We need to read the version info from a system file resource // to accurately identify the OS version. If we fail for any reason, // just return whatever GetVersion said. PyObject *realVersion = _sys_getwindowsversion_from_kernel32(); if (!realVersion) { if (!PyErr_ExceptionMatches(PyExc_WindowsError)) { return NULL; } PyErr_Clear(); realVersion = Py_BuildValue("(kkk)", ver.dwMajorVersion, ver.dwMinorVersion, ver.dwBuildNumber ); } SET_VERSION_INFO(realVersion); #undef SET_VERSION_INFO if (PyObject_SetAttrString(module, "_cached_windows_version", version) < 0) { goto error; } return version; error: Py_DECREF(version); return NULL; } #pragma warning(pop) /*[clinic input] sys._enablelegacywindowsfsencoding Changes the default filesystem encoding to mbcs:replace. This is done for consistency with earlier versions of Python. See PEP 529 for more information. This is equivalent to defining the PYTHONLEGACYWINDOWSFSENCODING environment variable before launching Python. [clinic start generated code]*/ static PyObject * sys__enablelegacywindowsfsencoding_impl(PyObject *module) /*[clinic end generated code: output=f5c3855b45e24fe9 input=2bfa931a20704492]*/ { if (PyErr_WarnEx(PyExc_DeprecationWarning, "sys._enablelegacywindowsfsencoding() is deprecated and will be " "removed in Python 3.16. Use PYTHONLEGACYWINDOWSFSENCODING " "instead.", 1)) { return NULL; } if (_PyUnicode_EnableLegacyWindowsFSEncoding() < 0) { return NULL; } Py_RETURN_NONE; } #endif /* MS_WINDOWS */ #ifdef HAVE_DLOPEN /*[clinic input] sys.setdlopenflags flags as new_val: int / Set the flags used by the interpreter for dlopen calls. This is used, for example, when the interpreter loads extension modules. Among other things, this will enable a lazy resolving of symbols when importing a module, if called as sys.setdlopenflags(0). To share symbols across extension modules, call as sys.setdlopenflags(os.RTLD_GLOBAL). Symbolic names for the flag modules can be found in the os module (RTLD_xxx constants, e.g. os.RTLD_LAZY). [clinic start generated code]*/ static PyObject * sys_setdlopenflags_impl(PyObject *module, int new_val) /*[clinic end generated code: output=ec918b7fe0a37281 input=4c838211e857a77f]*/ { PyInterpreterState *interp = _PyInterpreterState_GET(); _PyImport_SetDLOpenFlags(interp, new_val); Py_RETURN_NONE; } /*[clinic input] sys.getdlopenflags Return the current value of the flags that are used for dlopen calls. The flag constants are defined in the os module. [clinic start generated code]*/ static PyObject * sys_getdlopenflags_impl(PyObject *module) /*[clinic end generated code: output=e92cd1bc5005da6e input=dc4ea0899c53b4b6]*/ { PyInterpreterState *interp = _PyInterpreterState_GET(); return PyLong_FromLong( _PyImport_GetDLOpenFlags(interp)); } #endif /* HAVE_DLOPEN */ #ifdef USE_MALLOPT /* Link with -lmalloc (or -lmpc) on an SGI */ #include /*[clinic input] sys.mdebug flag: int / [clinic start generated code]*/ static PyObject * sys_mdebug_impl(PyObject *module, int flag) /*[clinic end generated code: output=5431d545847c3637 input=151d150ae1636f8a]*/ { int flag; mallopt(M_DEBUG, flag); Py_RETURN_NONE; } #endif /* USE_MALLOPT */ /*[clinic input] sys.get_int_max_str_digits Return the maximum string digits limit for non-binary int<->str conversions. [clinic start generated code]*/ static PyObject * sys_get_int_max_str_digits_impl(PyObject *module) /*[clinic end generated code: output=0042f5e8ae0e8631 input=61bf9f99bc8b112d]*/ { PyInterpreterState *interp = _PyInterpreterState_GET(); return PyLong_FromLong(interp->long_state.max_str_digits); } /*[clinic input] sys.set_int_max_str_digits maxdigits: int Set the maximum string digits limit for non-binary int<->str conversions. [clinic start generated code]*/ static PyObject * sys_set_int_max_str_digits_impl(PyObject *module, int maxdigits) /*[clinic end generated code: output=734d4c2511f2a56d input=d7e3f325db6910c5]*/ { if (_PySys_SetIntMaxStrDigits(maxdigits) < 0) { return NULL; } Py_RETURN_NONE; } size_t _PySys_GetSizeOf(PyObject *o) { PyObject *res = NULL; PyObject *method; Py_ssize_t size; PyThreadState *tstate = _PyThreadState_GET(); /* Make sure the type is initialized. float gets initialized late */ if (PyType_Ready(Py_TYPE(o)) < 0) { return (size_t)-1; } method = _PyObject_LookupSpecial(o, &_Py_ID(__sizeof__)); if (method == NULL) { if (!_PyErr_Occurred(tstate)) { _PyErr_Format(tstate, PyExc_TypeError, "Type %.100s doesn't define __sizeof__", Py_TYPE(o)->tp_name); } } else { res = _PyObject_CallNoArgs(method); Py_DECREF(method); } if (res == NULL) return (size_t)-1; size = PyLong_AsSsize_t(res); Py_DECREF(res); if (size == -1 && _PyErr_Occurred(tstate)) return (size_t)-1; if (size < 0) { _PyErr_SetString(tstate, PyExc_ValueError, "__sizeof__() should return >= 0"); return (size_t)-1; } size_t presize = 0; if (!Py_IS_TYPE(o, &PyType_Type) || PyType_HasFeature((PyTypeObject *)o, Py_TPFLAGS_HEAPTYPE)) { /* Add the size of the pre-header if "o" is not a static type */ presize = _PyType_PreHeaderSize(Py_TYPE(o)); } return (size_t)size + presize; } static PyObject * sys_getsizeof(PyObject *self, PyObject *args, PyObject *kwds) { static char *kwlist[] = {"object", "default", 0}; size_t size; PyObject *o, *dflt = NULL; PyThreadState *tstate = _PyThreadState_GET(); if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|O:getsizeof", kwlist, &o, &dflt)) { return NULL; } size = _PySys_GetSizeOf(o); if (size == (size_t)-1 && _PyErr_Occurred(tstate)) { /* Has a default value been given */ if (dflt != NULL && _PyErr_ExceptionMatches(tstate, PyExc_TypeError)) { _PyErr_Clear(tstate); return Py_NewRef(dflt); } else return NULL; } return PyLong_FromSize_t(size); } PyDoc_STRVAR(getsizeof_doc, "getsizeof(object [, default]) -> int\n\ \n\ Return the size of object in bytes."); /*[clinic input] sys.getrefcount -> Py_ssize_t object: object / Return the reference count of object. The count returned is generally one higher than you might expect, because it includes the (temporary) reference as an argument to getrefcount(). [clinic start generated code]*/ static Py_ssize_t sys_getrefcount_impl(PyObject *module, PyObject *object) /*[clinic end generated code: output=5fd477f2264b85b2 input=bf474efd50a21535]*/ { return Py_REFCNT(object); } #ifdef Py_REF_DEBUG /*[clinic input] sys.gettotalrefcount -> Py_ssize_t [clinic start generated code]*/ static Py_ssize_t sys_gettotalrefcount_impl(PyObject *module) /*[clinic end generated code: output=4103886cf17c25bc input=53b744faa5d2e4f6]*/ { /* It may make sense to return the total for the current interpreter or have a second function that does so. */ return _Py_GetGlobalRefTotal(); } #endif /* Py_REF_DEBUG */ /*[clinic input] sys.getallocatedblocks -> Py_ssize_t Return the number of memory blocks currently allocated. [clinic start generated code]*/ static Py_ssize_t sys_getallocatedblocks_impl(PyObject *module) /*[clinic end generated code: output=f0c4e873f0b6dcf7 input=dab13ee346a0673e]*/ { // It might make sense to return the count // for just the current interpreter. return _Py_GetGlobalAllocatedBlocks(); } /*[clinic input] sys.getunicodeinternedsize -> Py_ssize_t * _only_immortal: bool = False Return the number of elements of the unicode interned dictionary [clinic start generated code]*/ static Py_ssize_t sys_getunicodeinternedsize_impl(PyObject *module, int _only_immortal) /*[clinic end generated code: output=29a6377a94a14f70 input=0330b3408dd5bcc6]*/ { if (_only_immortal) { return _PyUnicode_InternedSize_Immortal(); } else { return _PyUnicode_InternedSize(); } } /*[clinic input] sys._getframe depth: int = 0 / Return a frame object from the call stack. If optional integer depth is given, return the frame object that many calls below the top of the stack. If that is deeper than the call stack, ValueError is raised. The default for depth is zero, returning the frame at the top of the call stack. This function should be used for internal and specialized purposes only. [clinic start generated code]*/ static PyObject * sys__getframe_impl(PyObject *module, int depth) /*[clinic end generated code: output=d438776c04d59804 input=c1be8a6464b11ee5]*/ { PyThreadState *tstate = _PyThreadState_GET(); _PyInterpreterFrame *frame = tstate->current_frame; if (frame != NULL) { while (depth > 0) { frame = _PyFrame_GetFirstComplete(frame->previous); if (frame == NULL) { break; } --depth; } } if (frame == NULL) { _PyErr_SetString(tstate, PyExc_ValueError, "call stack is not deep enough"); return NULL; } PyObject *pyFrame = Py_XNewRef((PyObject *)_PyFrame_GetFrameObject(frame)); if (pyFrame && _PySys_Audit(tstate, "sys._getframe", "(O)", pyFrame) < 0) { Py_DECREF(pyFrame); return NULL; } return pyFrame; } /*[clinic input] sys._current_frames Return a dict mapping each thread's thread id to its current stack frame. This function should be used for specialized purposes only. [clinic start generated code]*/ static PyObject * sys__current_frames_impl(PyObject *module) /*[clinic end generated code: output=d2a41ac0a0a3809a input=2a9049c5f5033691]*/ { return _PyThread_CurrentFrames(); } /*[clinic input] sys._current_exceptions Return a dict mapping each thread's identifier to its current raised exception. This function should be used for specialized purposes only. [clinic start generated code]*/ static PyObject * sys__current_exceptions_impl(PyObject *module) /*[clinic end generated code: output=2ccfd838c746f0ba input=0e91818fbf2edc1f]*/ { return _PyThread_CurrentExceptions(); } /*[clinic input] sys.call_tracing func: object args as funcargs: object(subclass_of='&PyTuple_Type') / Call func(*args), while tracing is enabled. The tracing state is saved, and restored afterwards. This is intended to be called from a debugger from a checkpoint, to recursively debug some other code. [clinic start generated code]*/ static PyObject * sys_call_tracing_impl(PyObject *module, PyObject *func, PyObject *funcargs) /*[clinic end generated code: output=7e4999853cd4e5a6 input=5102e8b11049f92f]*/ { return _PyEval_CallTracing(func, funcargs); } /*[clinic input] sys._debugmallocstats Print summary info to stderr about the state of pymalloc's structures. In Py_DEBUG mode, also perform some expensive internal consistency checks. [clinic start generated code]*/ static PyObject * sys__debugmallocstats_impl(PyObject *module) /*[clinic end generated code: output=ec3565f8c7cee46a input=33c0c9c416f98424]*/ { #ifdef WITH_PYMALLOC if (_PyObject_DebugMallocStats(stderr)) { fputc('\n', stderr); } #endif _PyObject_DebugTypeStats(stderr); Py_RETURN_NONE; } #ifdef Py_TRACE_REFS /* Defined in objects.c because it uses static globals in that file */ extern PyObject *_Py_GetObjects(PyObject *, PyObject *); #endif /*[clinic input] sys._clear_type_cache Clear the internal type lookup cache. [clinic start generated code]*/ static PyObject * sys__clear_type_cache_impl(PyObject *module) /*[clinic end generated code: output=20e48ca54a6f6971 input=127f3e04a8d9b555]*/ { PyType_ClearCache(); Py_RETURN_NONE; } /*[clinic input] sys._clear_internal_caches Clear all internal performance-related caches. [clinic start generated code]*/ static PyObject * sys__clear_internal_caches_impl(PyObject *module) /*[clinic end generated code: output=0ee128670a4966d6 input=253e741ca744f6e8]*/ { #ifdef _Py_TIER2 PyInterpreterState *interp = _PyInterpreterState_GET(); _Py_Executors_InvalidateAll(interp, 0); #endif #ifdef Py_GIL_DISABLED if (_Py_ClearUnusedTLBC(_PyInterpreterState_GET()) < 0) { return NULL; } #endif PyType_ClearCache(); Py_RETURN_NONE; } /* Note that, for now, we do not have a per-interpreter equivalent for sys.is_finalizing(). */ /*[clinic input] sys.is_finalizing Return True if Python is exiting. [clinic start generated code]*/ static PyObject * sys_is_finalizing_impl(PyObject *module) /*[clinic end generated code: output=735b5ff7962ab281 input=f0df747a039948a5]*/ { return PyBool_FromLong(Py_IsFinalizing()); } #ifdef Py_STATS /*[clinic input] sys._stats_on Turns on stats gathering (stats gathering is off by default). [clinic start generated code]*/ static PyObject * sys__stats_on_impl(PyObject *module) /*[clinic end generated code: output=aca53eafcbb4d9fe input=43b5bfe145299e55]*/ { _Py_StatsOn(); Py_RETURN_NONE; } /*[clinic input] sys._stats_off Turns off stats gathering (stats gathering is off by default). [clinic start generated code]*/ static PyObject * sys__stats_off_impl(PyObject *module) /*[clinic end generated code: output=1534c1ee63812214 input=d1a84c60c56cbce2]*/ { _Py_StatsOff(); Py_RETURN_NONE; } /*[clinic input] sys._stats_clear Clears the stats. [clinic start generated code]*/ static PyObject * sys__stats_clear_impl(PyObject *module) /*[clinic end generated code: output=fb65a2525ee50604 input=3e03f2654f44da96]*/ { _Py_StatsClear(); Py_RETURN_NONE; } /*[clinic input] sys._stats_dump -> bool Dump stats to file, and clears the stats. Return False if no statistics were not dumped because stats gathering was off. [clinic start generated code]*/ static int sys__stats_dump_impl(PyObject *module) /*[clinic end generated code: output=6e346b4ba0de4489 input=31a489e39418b2a5]*/ { int res = _Py_PrintSpecializationStats(1); _Py_StatsClear(); return res; } #endif // Py_STATS #ifdef ANDROID_API_LEVEL /*[clinic input] sys.getandroidapilevel Return the build time API version of Android as an integer. [clinic start generated code]*/ static PyObject * sys_getandroidapilevel_impl(PyObject *module) /*[clinic end generated code: output=214abf183a1c70c1 input=3e6d6c9fcdd24ac6]*/ { return PyLong_FromLong(ANDROID_API_LEVEL); } #endif /* ANDROID_API_LEVEL */ /*[clinic input] sys.activate_stack_trampoline backend: str / Activate stack profiler trampoline *backend*. [clinic start generated code]*/ static PyObject * sys_activate_stack_trampoline_impl(PyObject *module, const char *backend) /*[clinic end generated code: output=5783cdeb51874b43 input=a12df928758a82b4]*/ { #ifdef PY_HAVE_PERF_TRAMPOLINE #ifdef _Py_JIT _PyOptimizerObject* optimizer = _Py_GetOptimizer(); if (optimizer != NULL) { Py_DECREF(optimizer); PyErr_SetString(PyExc_ValueError, "Cannot activate the perf trampoline if the JIT is active"); return NULL; } #endif if (strcmp(backend, "perf") == 0) { _PyPerf_Callbacks cur_cb; _PyPerfTrampoline_GetCallbacks(&cur_cb); if (cur_cb.write_state != _Py_perfmap_callbacks.write_state) { if (_PyPerfTrampoline_SetCallbacks(&_Py_perfmap_callbacks) < 0 ) { PyErr_SetString(PyExc_ValueError, "can't activate perf trampoline"); return NULL; } } else if (strcmp(backend, "perf_jit") == 0) { _PyPerf_Callbacks cur_cb; _PyPerfTrampoline_GetCallbacks(&cur_cb); if (cur_cb.write_state != _Py_perfmap_jit_callbacks.write_state) { if (_PyPerfTrampoline_SetCallbacks(&_Py_perfmap_jit_callbacks) < 0 ) { PyErr_SetString(PyExc_ValueError, "can't activate perf jit trampoline"); return NULL; } } } } else { PyErr_Format(PyExc_ValueError, "invalid backend: %s", backend); return NULL; } if (_PyPerfTrampoline_Init(1) < 0) { return NULL; } Py_RETURN_NONE; #else PyErr_SetString(PyExc_ValueError, "perf trampoline not available"); return NULL; #endif } /*[clinic input] sys.deactivate_stack_trampoline Deactivate the current stack profiler trampoline backend. If no stack profiler is activated, this function has no effect. [clinic start generated code]*/ static PyObject * sys_deactivate_stack_trampoline_impl(PyObject *module) /*[clinic end generated code: output=b50da25465df0ef1 input=9f629a6be9fe7fc8]*/ { if (_PyPerfTrampoline_Init(0) < 0) { return NULL; } Py_RETURN_NONE; } /*[clinic input] sys.is_stack_trampoline_active Return *True* if a stack profiler trampoline is active. [clinic start generated code]*/ static PyObject * sys_is_stack_trampoline_active_impl(PyObject *module) /*[clinic end generated code: output=ab2746de0ad9d293 input=29616b7bf6a0b703]*/ { #ifdef PY_HAVE_PERF_TRAMPOLINE if (_PyIsPerfTrampolineActive()) { Py_RETURN_TRUE; } #endif Py_RETURN_FALSE; } /*[clinic input] sys._getframemodulename depth: int = 0 Return the name of the module for a calling frame. The default depth returns the module containing the call to this API. A more typical use in a library will pass a depth of 1 to get the user's module rather than the library module. If no frame, module, or name can be found, returns None. [clinic start generated code]*/ static PyObject * sys__getframemodulename_impl(PyObject *module, int depth) /*[clinic end generated code: output=1d70ef691f09d2db input=d4f1a8ed43b8fb46]*/ { if (PySys_Audit("sys._getframemodulename", "i", depth) < 0) { return NULL; } _PyInterpreterFrame *f = _PyThreadState_GET()->current_frame; while (f && (_PyFrame_IsIncomplete(f) || depth-- > 0)) { f = f->previous; } if (f == NULL || PyStackRef_IsNull(f->f_funcobj)) { Py_RETURN_NONE; } PyObject *func = PyStackRef_AsPyObjectBorrow(f->f_funcobj); PyObject *r = PyFunction_GetModule(func); if (!r) { PyErr_Clear(); r = Py_None; } return Py_NewRef(r); } /*[clinic input] sys._get_cpu_count_config -> int Private function for getting PyConfig.cpu_count [clinic start generated code]*/ static int sys__get_cpu_count_config_impl(PyObject *module) /*[clinic end generated code: output=36611bb5efad16dc input=523e1ade2204084e]*/ { const PyConfig *config = _Py_GetConfig(); return config->cpu_count; } /*[clinic input] sys._baserepl Private function for getting the base REPL [clinic start generated code]*/ static PyObject * sys__baserepl_impl(PyObject *module) /*[clinic end generated code: output=f19a36375ebe0a45 input=ade0ebb9fab56f3c]*/ { PyCompilerFlags cf = _PyCompilerFlags_INIT; PyRun_AnyFileExFlags(stdin, "", 0, &cf); Py_RETURN_NONE; } /*[clinic input] sys._is_gil_enabled -> bool Return True if the GIL is currently enabled and False otherwise. [clinic start generated code]*/ static int sys__is_gil_enabled_impl(PyObject *module) /*[clinic end generated code: output=57732cf53f5b9120 input=7e9c47f15a00e809]*/ { #ifdef Py_GIL_DISABLED return _PyEval_IsGILEnabled(_PyThreadState_GET()); #else return 1; #endif } static PerfMapState perf_map_state; PyAPI_FUNC(int) PyUnstable_PerfMapState_Init(void) { #ifndef MS_WINDOWS char filename[100]; pid_t pid = getpid(); // Use nofollow flag to prevent symlink attacks. int flags = O_WRONLY | O_CREAT | O_APPEND | O_NOFOLLOW; #ifdef O_CLOEXEC flags |= O_CLOEXEC; #endif snprintf(filename, sizeof(filename) - 1, "/tmp/perf-%jd.map", (intmax_t)pid); int fd = open(filename, flags, 0600); if (fd == -1) { return -1; } else{ perf_map_state.perf_map = fdopen(fd, "a"); if (perf_map_state.perf_map == NULL) { close(fd); return -1; } } perf_map_state.map_lock = PyThread_allocate_lock(); if (perf_map_state.map_lock == NULL) { fclose(perf_map_state.perf_map); return -2; } #endif return 0; } PyAPI_FUNC(int) PyUnstable_WritePerfMapEntry( const void *code_addr, unsigned int code_size, const char *entry_name ) { #ifndef MS_WINDOWS if (perf_map_state.perf_map == NULL) { int ret = PyUnstable_PerfMapState_Init(); if (ret != 0){ return ret; } } PyThread_acquire_lock(perf_map_state.map_lock, 1); fprintf(perf_map_state.perf_map, "%" PRIxPTR " %x %s\n", (uintptr_t) code_addr, code_size, entry_name); fflush(perf_map_state.perf_map); PyThread_release_lock(perf_map_state.map_lock); #endif return 0; } PyAPI_FUNC(void) PyUnstable_PerfMapState_Fini(void) { #ifndef MS_WINDOWS if (perf_map_state.perf_map != NULL) { // close the file PyThread_acquire_lock(perf_map_state.map_lock, 1); fclose(perf_map_state.perf_map); PyThread_release_lock(perf_map_state.map_lock); // clean up the lock and state PyThread_free_lock(perf_map_state.map_lock); perf_map_state.perf_map = NULL; } #endif } PyAPI_FUNC(int) PyUnstable_CopyPerfMapFile(const char* parent_filename) { #ifndef MS_WINDOWS if (perf_map_state.perf_map == NULL) { int ret = PyUnstable_PerfMapState_Init(); if (ret != 0) { return ret; } } FILE* from = fopen(parent_filename, "r"); if (!from) { return -1; } char buf[4096]; PyThread_acquire_lock(perf_map_state.map_lock, 1); int fflush_result = 0, result = 0; while (1) { size_t bytes_read = fread(buf, 1, sizeof(buf), from); size_t bytes_written = fwrite(buf, 1, bytes_read, perf_map_state.perf_map); fflush_result = fflush(perf_map_state.perf_map); if (fflush_result != 0 || bytes_read == 0 || bytes_written < bytes_read) { result = -1; goto close_and_release; } if (bytes_read < sizeof(buf) && feof(from)) { goto close_and_release; } } close_and_release: fclose(from); PyThread_release_lock(perf_map_state.map_lock); return result; #endif return 0; } static PyMethodDef sys_methods[] = { /* Might as well keep this in alphabetic order */ SYS_ADDAUDITHOOK_METHODDEF {"audit", _PyCFunction_CAST(sys_audit), METH_FASTCALL, audit_doc }, {"breakpointhook", _PyCFunction_CAST(sys_breakpointhook), METH_FASTCALL | METH_KEYWORDS, breakpointhook_doc}, SYS__CLEAR_INTERNAL_CACHES_METHODDEF SYS__CLEAR_TYPE_CACHE_METHODDEF SYS__CURRENT_FRAMES_METHODDEF SYS__CURRENT_EXCEPTIONS_METHODDEF SYS_DISPLAYHOOK_METHODDEF SYS_EXCEPTION_METHODDEF SYS_EXC_INFO_METHODDEF SYS_EXCEPTHOOK_METHODDEF SYS_EXIT_METHODDEF SYS_GETDEFAULTENCODING_METHODDEF SYS_GETDLOPENFLAGS_METHODDEF SYS_GETALLOCATEDBLOCKS_METHODDEF SYS_GETUNICODEINTERNEDSIZE_METHODDEF SYS_GETFILESYSTEMENCODING_METHODDEF SYS_GETFILESYSTEMENCODEERRORS_METHODDEF #ifdef Py_TRACE_REFS {"getobjects", _Py_GetObjects, METH_VARARGS}, #endif SYS_GETTOTALREFCOUNT_METHODDEF SYS_GETREFCOUNT_METHODDEF SYS_GETRECURSIONLIMIT_METHODDEF {"getsizeof", _PyCFunction_CAST(sys_getsizeof), METH_VARARGS | METH_KEYWORDS, getsizeof_doc}, SYS__GETFRAME_METHODDEF SYS__GETFRAMEMODULENAME_METHODDEF SYS_GETWINDOWSVERSION_METHODDEF SYS__ENABLELEGACYWINDOWSFSENCODING_METHODDEF SYS_INTERN_METHODDEF SYS__IS_INTERNED_METHODDEF SYS_IS_FINALIZING_METHODDEF SYS_MDEBUG_METHODDEF SYS_SETSWITCHINTERVAL_METHODDEF SYS_GETSWITCHINTERVAL_METHODDEF SYS_SETDLOPENFLAGS_METHODDEF SYS_SETPROFILE_METHODDEF SYS__SETPROFILEALLTHREADS_METHODDEF SYS_GETPROFILE_METHODDEF SYS_SETRECURSIONLIMIT_METHODDEF SYS_SETTRACE_METHODDEF SYS__SETTRACEALLTHREADS_METHODDEF SYS_GETTRACE_METHODDEF SYS_CALL_TRACING_METHODDEF SYS__DEBUGMALLOCSTATS_METHODDEF SYS_SET_COROUTINE_ORIGIN_TRACKING_DEPTH_METHODDEF SYS_GET_COROUTINE_ORIGIN_TRACKING_DEPTH_METHODDEF {"set_asyncgen_hooks", _PyCFunction_CAST(sys_set_asyncgen_hooks), METH_VARARGS | METH_KEYWORDS, set_asyncgen_hooks_doc}, SYS_GET_ASYNCGEN_HOOKS_METHODDEF SYS_GETANDROIDAPILEVEL_METHODDEF SYS_ACTIVATE_STACK_TRAMPOLINE_METHODDEF SYS_DEACTIVATE_STACK_TRAMPOLINE_METHODDEF SYS_IS_STACK_TRAMPOLINE_ACTIVE_METHODDEF SYS_UNRAISABLEHOOK_METHODDEF SYS_GET_INT_MAX_STR_DIGITS_METHODDEF SYS_SET_INT_MAX_STR_DIGITS_METHODDEF SYS__BASEREPL_METHODDEF #ifdef Py_STATS SYS__STATS_ON_METHODDEF SYS__STATS_OFF_METHODDEF SYS__STATS_CLEAR_METHODDEF SYS__STATS_DUMP_METHODDEF #endif SYS__GET_CPU_COUNT_CONFIG_METHODDEF SYS__IS_GIL_ENABLED_METHODDEF {NULL, NULL} // sentinel }; static PyObject * list_builtin_module_names(void) { PyObject *list = _PyImport_GetBuiltinModuleNames(); if (list == NULL) { return NULL; } if (PyList_Sort(list) != 0) { goto error; } PyObject *tuple = PyList_AsTuple(list); Py_DECREF(list); return tuple; error: Py_DECREF(list); return NULL; } static PyObject * list_stdlib_module_names(void) { Py_ssize_t len = Py_ARRAY_LENGTH(_Py_stdlib_module_names); PyObject *names = PyTuple_New(len); if (names == NULL) { return NULL; } for (Py_ssize_t i = 0; i < len; i++) { PyObject *name = PyUnicode_FromString(_Py_stdlib_module_names[i]); if (name == NULL) { Py_DECREF(names); return NULL; } PyTuple_SET_ITEM(names, i, name); } PyObject *set = PyObject_CallFunction((PyObject *)&PyFrozenSet_Type, "(O)", names); Py_DECREF(names); return set; } /* Pre-initialization support for sys.warnoptions and sys._xoptions * * Modern internal code paths: * These APIs get called after _Py_InitializeCore and get to use the * regular CPython list, dict, and unicode APIs. * * Legacy embedding code paths: * The multi-phase initialization API isn't public yet, so embedding * apps still need to be able configure sys.warnoptions and sys._xoptions * before they call Py_Initialize. To support this, we stash copies of * the supplied wchar * sequences in linked lists, and then migrate the * contents of those lists to the sys module in _PyInitializeCore. * */ struct _preinit_entry { wchar_t *value; struct _preinit_entry *next; }; typedef struct _preinit_entry *_Py_PreInitEntry; static _Py_PreInitEntry _preinit_warnoptions = NULL; static _Py_PreInitEntry _preinit_xoptions = NULL; static _Py_PreInitEntry _alloc_preinit_entry(const wchar_t *value) { /* To get this to work, we have to initialize the runtime implicitly */ _PyRuntime_Initialize(); /* Force default allocator, so we can ensure that it also gets used to * destroy the linked list in _clear_preinit_entries. */ PyMemAllocatorEx old_alloc; _PyMem_SetDefaultAllocator(PYMEM_DOMAIN_RAW, &old_alloc); _Py_PreInitEntry node = PyMem_RawCalloc(1, sizeof(*node)); if (node != NULL) { node->value = _PyMem_RawWcsdup(value); if (node->value == NULL) { PyMem_RawFree(node); node = NULL; }; }; PyMem_SetAllocator(PYMEM_DOMAIN_RAW, &old_alloc); return node; } static int _append_preinit_entry(_Py_PreInitEntry *optionlist, const wchar_t *value) { _Py_PreInitEntry new_entry = _alloc_preinit_entry(value); if (new_entry == NULL) { return -1; } /* We maintain the linked list in this order so it's easy to play back * the add commands in the same order later on in _Py_InitializeCore */ _Py_PreInitEntry last_entry = *optionlist; if (last_entry == NULL) { *optionlist = new_entry; } else { while (last_entry->next != NULL) { last_entry = last_entry->next; } last_entry->next = new_entry; } return 0; } static void _clear_preinit_entries(_Py_PreInitEntry *optionlist) { _Py_PreInitEntry current = *optionlist; *optionlist = NULL; /* Deallocate the nodes and their contents using the default allocator */ PyMemAllocatorEx old_alloc; _PyMem_SetDefaultAllocator(PYMEM_DOMAIN_RAW, &old_alloc); while (current != NULL) { _Py_PreInitEntry next = current->next; PyMem_RawFree(current->value); PyMem_RawFree(current); current = next; } PyMem_SetAllocator(PYMEM_DOMAIN_RAW, &old_alloc); } PyStatus _PySys_ReadPreinitWarnOptions(PyWideStringList *options) { PyStatus status; _Py_PreInitEntry entry; for (entry = _preinit_warnoptions; entry != NULL; entry = entry->next) { status = PyWideStringList_Append(options, entry->value); if (_PyStatus_EXCEPTION(status)) { return status; } } _clear_preinit_entries(&_preinit_warnoptions); return _PyStatus_OK(); } PyStatus _PySys_ReadPreinitXOptions(PyConfig *config) { PyStatus status; _Py_PreInitEntry entry; for (entry = _preinit_xoptions; entry != NULL; entry = entry->next) { status = PyWideStringList_Append(&config->xoptions, entry->value); if (_PyStatus_EXCEPTION(status)) { return status; } } _clear_preinit_entries(&_preinit_xoptions); return _PyStatus_OK(); } static PyObject * get_warnoptions(PyThreadState *tstate) { PyObject *warnoptions = _PySys_GetAttr(tstate, &_Py_ID(warnoptions)); if (warnoptions == NULL || !PyList_Check(warnoptions)) { /* PEP432 TODO: we can reach this if warnoptions is NULL in the main * interpreter config. When that happens, we need to properly set * the `warnoptions` reference in the main interpreter config as well. * * For Python 3.7, we shouldn't be able to get here due to the * combination of how _PyMainInterpreter_ReadConfig and _PySys_EndInit * work, but we expect 3.8+ to make the _PyMainInterpreter_ReadConfig * call optional for embedding applications, thus making this * reachable again. */ warnoptions = PyList_New(0); if (warnoptions == NULL) { return NULL; } if (sys_set_object(tstate->interp, &_Py_ID(warnoptions), warnoptions)) { Py_DECREF(warnoptions); return NULL; } Py_DECREF(warnoptions); } return warnoptions; } void PySys_ResetWarnOptions(void) { PyThreadState *tstate = _PyThreadState_GET(); if (tstate == NULL) { _clear_preinit_entries(&_preinit_warnoptions); return; } PyObject *warnoptions = _PySys_GetAttr(tstate, &_Py_ID(warnoptions)); if (warnoptions == NULL || !PyList_Check(warnoptions)) return; PyList_SetSlice(warnoptions, 0, PyList_GET_SIZE(warnoptions), NULL); } static int _PySys_AddWarnOptionWithError(PyThreadState *tstate, PyObject *option) { PyObject *warnoptions = get_warnoptions(tstate); if (warnoptions == NULL) { return -1; } if (PyList_Append(warnoptions, option)) { return -1; } return 0; } // Removed in Python 3.13 API, but kept for the stable ABI PyAPI_FUNC(void) PySys_AddWarnOptionUnicode(PyObject *option) { PyThreadState *tstate = _PyThreadState_GET(); if (_PySys_AddWarnOptionWithError(tstate, option) < 0) { /* No return value, therefore clear error state if possible */ if (tstate) { _PyErr_Clear(tstate); } } } // Removed in Python 3.13 API, but kept for the stable ABI PyAPI_FUNC(void) PySys_AddWarnOption(const wchar_t *s) { PyThreadState *tstate = _PyThreadState_GET(); if (tstate == NULL) { _append_preinit_entry(&_preinit_warnoptions, s); return; } PyObject *unicode; unicode = PyUnicode_FromWideChar(s, -1); if (unicode == NULL) return; _Py_COMP_DIAG_PUSH _Py_COMP_DIAG_IGNORE_DEPR_DECLS PySys_AddWarnOptionUnicode(unicode); _Py_COMP_DIAG_POP Py_DECREF(unicode); } // Removed in Python 3.13 API, but kept for the stable ABI PyAPI_FUNC(int) PySys_HasWarnOptions(void) { PyThreadState *tstate = _PyThreadState_GET(); PyObject *warnoptions = _PySys_GetAttr(tstate, &_Py_ID(warnoptions)); return (warnoptions != NULL && PyList_Check(warnoptions) && PyList_GET_SIZE(warnoptions) > 0); } static PyObject * get_xoptions(PyThreadState *tstate) { PyObject *xoptions = _PySys_GetAttr(tstate, &_Py_ID(_xoptions)); if (xoptions == NULL || !PyDict_Check(xoptions)) { /* PEP432 TODO: we can reach this if xoptions is NULL in the main * interpreter config. When that happens, we need to properly set * the `xoptions` reference in the main interpreter config as well. * * For Python 3.7, we shouldn't be able to get here due to the * combination of how _PyMainInterpreter_ReadConfig and _PySys_EndInit * work, but we expect 3.8+ to make the _PyMainInterpreter_ReadConfig * call optional for embedding applications, thus making this * reachable again. */ xoptions = PyDict_New(); if (xoptions == NULL) { return NULL; } if (sys_set_object(tstate->interp, &_Py_ID(_xoptions), xoptions)) { Py_DECREF(xoptions); return NULL; } Py_DECREF(xoptions); } return xoptions; } static int _PySys_AddXOptionWithError(const wchar_t *s) { PyObject *name = NULL, *value = NULL; PyThreadState *tstate = _PyThreadState_GET(); PyObject *opts = get_xoptions(tstate); if (opts == NULL) { goto error; } const wchar_t *name_end = wcschr(s, L'='); if (!name_end) { name = PyUnicode_FromWideChar(s, -1); if (name == NULL) { goto error; } value = Py_NewRef(Py_True); } else { name = PyUnicode_FromWideChar(s, name_end - s); if (name == NULL) { goto error; } value = PyUnicode_FromWideChar(name_end + 1, -1); if (value == NULL) { goto error; } } if (PyDict_SetItem(opts, name, value) < 0) { goto error; } Py_DECREF(name); Py_DECREF(value); return 0; error: Py_XDECREF(name); Py_XDECREF(value); return -1; } // Removed in Python 3.13 API, but kept for the stable ABI PyAPI_FUNC(void) PySys_AddXOption(const wchar_t *s) { PyThreadState *tstate = _PyThreadState_GET(); if (tstate == NULL) { _append_preinit_entry(&_preinit_xoptions, s); return; } if (_PySys_AddXOptionWithError(s) < 0) { /* No return value, therefore clear error state if possible */ _PyErr_Clear(tstate); } } PyObject * PySys_GetXOptions(void) { PyThreadState *tstate = _PyThreadState_GET(); return get_xoptions(tstate); } /* XXX This doc string is too long to be a single string literal in VC++ 5.0. Two literals concatenated works just fine. If you have a K&R compiler or other abomination that however *does* understand longer strings, get rid of the !!! comment in the middle and the quotes that surround it. */ PyDoc_VAR(sys_doc) = PyDoc_STR( "This module provides access to some objects used or maintained by the\n\ interpreter and to functions that interact strongly with the interpreter.\n\ \n\ Dynamic objects:\n\ \n\ argv -- command line arguments; argv[0] is the script pathname if known\n\ path -- module search path; path[0] is the script directory, else ''\n\ modules -- dictionary of loaded modules\n\ \n\ displayhook -- called to show results in an interactive session\n\ excepthook -- called to handle any uncaught exception other than SystemExit\n\ To customize printing in an interactive session or to install a custom\n\ top-level exception handler, assign other functions to replace these.\n\ \n\ stdin -- standard input file object; used by input()\n\ stdout -- standard output file object; used by print()\n\ stderr -- standard error object; used for error messages\n\ By assigning other file objects (or objects that behave like files)\n\ to these, it is possible to redirect all of the interpreter's I/O.\n\ \n\ last_exc - the last uncaught exception\n\ Only available in an interactive session after a\n\ traceback has been printed.\n\ last_type -- type of last uncaught exception\n\ last_value -- value of last uncaught exception\n\ last_traceback -- traceback of last uncaught exception\n\ These three are the (deprecated) legacy representation of last_exc.\n\ " ) /* concatenating string here */ PyDoc_STR( "\n\ Static objects:\n\ \n\ builtin_module_names -- tuple of module names built into this interpreter\n\ copyright -- copyright notice pertaining to this interpreter\n\ exec_prefix -- prefix used to find the machine-specific Python library\n\ executable -- absolute path of the executable binary of the Python interpreter\n\ float_info -- a named tuple with information about the float implementation.\n\ float_repr_style -- string indicating the style of repr() output for floats\n\ hash_info -- a named tuple with information about the hash algorithm.\n\ hexversion -- version information encoded as a single integer\n\ implementation -- Python implementation information.\n\ int_info -- a named tuple with information about the int implementation.\n\ maxsize -- the largest supported length of containers.\n\ maxunicode -- the value of the largest Unicode code point\n\ platform -- platform identifier\n\ prefix -- prefix used to find the Python library\n\ thread_info -- a named tuple with information about the thread implementation.\n\ version -- the version of this interpreter as a string\n\ version_info -- version information as a named tuple\n\ " ) #ifdef MS_COREDLL /* concatenating string here */ PyDoc_STR( "dllhandle -- [Windows only] integer handle of the Python DLL\n\ winver -- [Windows only] version number of the Python DLL\n\ " ) #endif /* MS_COREDLL */ #ifdef MS_WINDOWS /* concatenating string here */ PyDoc_STR( "_enablelegacywindowsfsencoding -- [Windows only]\n\ " ) #endif PyDoc_STR( "__stdin__ -- the original stdin; don't touch!\n\ __stdout__ -- the original stdout; don't touch!\n\ __stderr__ -- the original stderr; don't touch!\n\ __displayhook__ -- the original displayhook; don't touch!\n\ __excepthook__ -- the original excepthook; don't touch!\n\ \n\ Functions:\n\ \n\ displayhook() -- print an object to the screen, and save it in builtins._\n\ excepthook() -- print an exception and its traceback to sys.stderr\n\ exception() -- return the current thread's active exception\n\ exc_info() -- return information about the current thread's active exception\n\ exit() -- exit the interpreter by raising SystemExit\n\ getdlopenflags() -- returns flags to be used for dlopen() calls\n\ getprofile() -- get the global profiling function\n\ getrefcount() -- return the reference count for an object (plus one :-)\n\ getrecursionlimit() -- return the max recursion depth for the interpreter\n\ getsizeof() -- return the size of an object in bytes\n\ gettrace() -- get the global debug tracing function\n\ setdlopenflags() -- set the flags to be used for dlopen() calls\n\ setprofile() -- set the global profiling function\n\ setrecursionlimit() -- set the max recursion depth for the interpreter\n\ settrace() -- set the global debug tracing function\n\ " ) /* end of sys_doc */ ; PyDoc_STRVAR(flags__doc__, "sys.flags\n\ \n\ Flags provided through command line arguments or environment vars."); static PyTypeObject FlagsType; static PyStructSequence_Field flags_fields[] = { {"debug", "-d"}, {"inspect", "-i"}, {"interactive", "-i"}, {"optimize", "-O or -OO"}, {"dont_write_bytecode", "-B"}, {"no_user_site", "-s"}, {"no_site", "-S"}, {"ignore_environment", "-E"}, {"verbose", "-v"}, {"bytes_warning", "-b"}, {"quiet", "-q"}, {"hash_randomization", "-R"}, {"isolated", "-I"}, {"dev_mode", "-X dev"}, {"utf8_mode", "-X utf8"}, {"warn_default_encoding", "-X warn_default_encoding"}, {"safe_path", "-P"}, {"int_max_str_digits", "-X int_max_str_digits"}, {"gil", "-X gil"}, {0} }; #define SYS_FLAGS_INT_MAX_STR_DIGITS 17 static PyStructSequence_Desc flags_desc = { "sys.flags", /* name */ flags__doc__, /* doc */ flags_fields, /* fields */ 18 }; static void sys_set_flag(PyObject *flags, Py_ssize_t pos, PyObject *value) { assert(pos >= 0 && pos < (Py_ssize_t)(Py_ARRAY_LENGTH(flags_fields) - 1)); PyObject *old_value = PyStructSequence_GET_ITEM(flags, pos); PyStructSequence_SET_ITEM(flags, pos, Py_NewRef(value)); Py_XDECREF(old_value); } int _PySys_SetFlagObj(Py_ssize_t pos, PyObject *value) { PyObject *flags = Py_XNewRef(PySys_GetObject("flags")); if (flags == NULL) { if (!PyErr_Occurred()) { PyErr_SetString(PyExc_RuntimeError, "lost sys.flags"); } return -1; } sys_set_flag(flags, pos, value); Py_DECREF(flags); return 0; } static int _PySys_SetFlagInt(Py_ssize_t pos, int value) { PyObject *obj = PyLong_FromLong(value); if (obj == NULL) { return -1; } int res = _PySys_SetFlagObj(pos, obj); Py_DECREF(obj); return res; } static int set_flags_from_config(PyInterpreterState *interp, PyObject *flags) { const PyPreConfig *preconfig = &interp->runtime->preconfig; const PyConfig *config = _PyInterpreterState_GetConfig(interp); // _PySys_UpdateConfig() modifies sys.flags in-place: // Py_XDECREF() is needed in this case. Py_ssize_t pos = 0; #define SetFlagObj(expr) \ do { \ PyObject *value = (expr); \ if (value == NULL) { \ return -1; \ } \ sys_set_flag(flags, pos, value); \ Py_DECREF(value); \ pos++; \ } while (0) #define SetFlag(expr) SetFlagObj(PyLong_FromLong(expr)) SetFlag(config->parser_debug); SetFlag(config->inspect); SetFlag(config->interactive); SetFlag(config->optimization_level); SetFlag(!config->write_bytecode); SetFlag(!config->user_site_directory); SetFlag(!config->site_import); SetFlag(!config->use_environment); SetFlag(config->verbose); SetFlag(config->bytes_warning); SetFlag(config->quiet); SetFlag(config->use_hash_seed == 0 || config->hash_seed != 0); SetFlag(config->isolated); SetFlagObj(PyBool_FromLong(config->dev_mode)); SetFlag(preconfig->utf8_mode); SetFlag(config->warn_default_encoding); SetFlagObj(PyBool_FromLong(config->safe_path)); SetFlag(config->int_max_str_digits); #ifdef Py_GIL_DISABLED if (config->enable_gil == _PyConfig_GIL_DEFAULT) { SetFlagObj(Py_NewRef(Py_None)); } else { SetFlag(config->enable_gil); } #else SetFlagObj(PyLong_FromLong(1)); #endif #undef SetFlagObj #undef SetFlag return 0; } static PyObject* make_flags(PyInterpreterState *interp) { PyObject *flags = PyStructSequence_New(&FlagsType); if (flags == NULL) { return NULL; } if (set_flags_from_config(interp, flags) < 0) { Py_DECREF(flags); return NULL; } return flags; } PyDoc_STRVAR(version_info__doc__, "sys.version_info\n\ \n\ Version information as a named tuple."); static PyTypeObject VersionInfoType; static PyStructSequence_Field version_info_fields[] = { {"major", "Major release number"}, {"minor", "Minor release number"}, {"micro", "Patch release number"}, {"releaselevel", "'alpha', 'beta', 'candidate', or 'final'"}, {"serial", "Serial release number"}, {0} }; static PyStructSequence_Desc version_info_desc = { "sys.version_info", /* name */ version_info__doc__, /* doc */ version_info_fields, /* fields */ 5 }; static PyObject * make_version_info(PyThreadState *tstate) { PyObject *version_info; char *s; int pos = 0; version_info = PyStructSequence_New(&VersionInfoType); if (version_info == NULL) { return NULL; } /* * These release level checks are mutually exclusive and cover * the field, so don't get too fancy with the pre-processor! */ #if PY_RELEASE_LEVEL == PY_RELEASE_LEVEL_ALPHA s = "alpha"; #elif PY_RELEASE_LEVEL == PY_RELEASE_LEVEL_BETA s = "beta"; #elif PY_RELEASE_LEVEL == PY_RELEASE_LEVEL_GAMMA s = "candidate"; #elif PY_RELEASE_LEVEL == PY_RELEASE_LEVEL_FINAL s = "final"; #endif #define SetIntItem(flag) \ PyStructSequence_SET_ITEM(version_info, pos++, PyLong_FromLong(flag)) #define SetStrItem(flag) \ PyStructSequence_SET_ITEM(version_info, pos++, PyUnicode_FromString(flag)) SetIntItem(PY_MAJOR_VERSION); SetIntItem(PY_MINOR_VERSION); SetIntItem(PY_MICRO_VERSION); SetStrItem(s); SetIntItem(PY_RELEASE_SERIAL); #undef SetIntItem #undef SetStrItem if (_PyErr_Occurred(tstate)) { Py_CLEAR(version_info); return NULL; } return version_info; } /* sys.implementation values */ #define NAME "cpython" const char *_PySys_ImplName = NAME; #define MAJOR Py_STRINGIFY(PY_MAJOR_VERSION) #define MINOR Py_STRINGIFY(PY_MINOR_VERSION) #define TAG NAME "-" MAJOR MINOR const char *_PySys_ImplCacheTag = TAG; #undef NAME #undef MAJOR #undef MINOR #undef TAG static PyObject * make_impl_info(PyObject *version_info) { int res; PyObject *impl_info, *value, *ns; impl_info = PyDict_New(); if (impl_info == NULL) return NULL; /* populate the dict */ value = PyUnicode_FromString(_PySys_ImplName); if (value == NULL) goto error; res = PyDict_SetItemString(impl_info, "name", value); Py_DECREF(value); if (res < 0) goto error; value = PyUnicode_FromString(_PySys_ImplCacheTag); if (value == NULL) goto error; res = PyDict_SetItemString(impl_info, "cache_tag", value); Py_DECREF(value); if (res < 0) goto error; res = PyDict_SetItemString(impl_info, "version", version_info); if (res < 0) goto error; value = PyLong_FromLong(PY_VERSION_HEX); if (value == NULL) goto error; res = PyDict_SetItemString(impl_info, "hexversion", value); Py_DECREF(value); if (res < 0) goto error; #ifdef MULTIARCH value = PyUnicode_FromString(MULTIARCH); if (value == NULL) goto error; res = PyDict_SetItemString(impl_info, "_multiarch", value); Py_DECREF(value); if (res < 0) goto error; #endif /* dict ready */ ns = _PyNamespace_New(impl_info); Py_DECREF(impl_info); return ns; error: Py_CLEAR(impl_info); return NULL; } #ifdef __EMSCRIPTEN__ PyDoc_STRVAR(emscripten_info__doc__, "sys._emscripten_info\n\ \n\ WebAssembly Emscripten platform information."); static PyTypeObject *EmscriptenInfoType; static PyStructSequence_Field emscripten_info_fields[] = { {"emscripten_version", "Emscripten version (major, minor, micro)"}, {"runtime", "Runtime (Node.JS version, browser user agent)"}, {"pthreads", "pthread support"}, {"shared_memory", "shared memory support"}, {0} }; static PyStructSequence_Desc emscripten_info_desc = { "sys._emscripten_info", /* name */ emscripten_info__doc__ , /* doc */ emscripten_info_fields, /* fields */ 4 }; EM_JS(char *, _Py_emscripten_runtime, (void), { var info; if (typeof navigator == 'object') { info = navigator.userAgent; } else if (typeof process == 'object') { info = "Node.js ".concat(process.version); } else { info = "UNKNOWN"; } var len = lengthBytesUTF8(info) + 1; var res = _malloc(len); if (res) stringToUTF8(info, res, len); #if __wasm64__ return BigInt(res); #else return res; #endif }); static PyObject * make_emscripten_info(void) { PyObject *emscripten_info = NULL; PyObject *version = NULL; char *ua; int pos = 0; emscripten_info = PyStructSequence_New(EmscriptenInfoType); if (emscripten_info == NULL) { return NULL; } version = Py_BuildValue("(iii)", __EMSCRIPTEN_major__, __EMSCRIPTEN_minor__, __EMSCRIPTEN_tiny__); if (version == NULL) { goto error; } PyStructSequence_SET_ITEM(emscripten_info, pos++, version); ua = _Py_emscripten_runtime(); if (ua != NULL) { PyObject *oua = PyUnicode_DecodeUTF8(ua, strlen(ua), "strict"); free(ua); if (oua == NULL) { goto error; } PyStructSequence_SET_ITEM(emscripten_info, pos++, oua); } else { PyStructSequence_SET_ITEM(emscripten_info, pos++, Py_NewRef(Py_None)); } #define SetBoolItem(flag) \ PyStructSequence_SET_ITEM(emscripten_info, pos++, PyBool_FromLong(flag)) #ifdef __EMSCRIPTEN_PTHREADS__ SetBoolItem(1); #else SetBoolItem(0); #endif #ifdef __EMSCRIPTEN_SHARED_MEMORY__ SetBoolItem(1); #else SetBoolItem(0); #endif #undef SetBoolItem if (PyErr_Occurred()) { goto error; } return emscripten_info; error: Py_CLEAR(emscripten_info); return NULL; } #endif // __EMSCRIPTEN__ static struct PyModuleDef sysmodule = { PyModuleDef_HEAD_INIT, "sys", sys_doc, -1, /* multiple "initialization" just copies the module dict. */ sys_methods, NULL, NULL, NULL, NULL }; /* Updating the sys namespace, returning NULL pointer on error */ #define SET_SYS(key, value) \ do { \ PyObject *v = (value); \ if (v == NULL) { \ goto err_occurred; \ } \ res = PyDict_SetItemString(sysdict, key, v); \ Py_DECREF(v); \ if (res < 0) { \ goto err_occurred; \ } \ } while (0) #define SET_SYS_FROM_STRING(key, value) \ SET_SYS(key, PyUnicode_FromString(value)) static PyStatus _PySys_InitCore(PyThreadState *tstate, PyObject *sysdict) { PyObject *version_info; int res; PyInterpreterState *interp = tstate->interp; /* stdin/stdout/stderr are set in pylifecycle.c */ #define COPY_SYS_ATTR(tokey, fromkey) \ SET_SYS(tokey, PyMapping_GetItemString(sysdict, fromkey)) COPY_SYS_ATTR("__displayhook__", "displayhook"); COPY_SYS_ATTR("__excepthook__", "excepthook"); COPY_SYS_ATTR("__breakpointhook__", "breakpointhook"); COPY_SYS_ATTR("__unraisablehook__", "unraisablehook"); #undef COPY_SYS_ATTR SET_SYS_FROM_STRING("version", Py_GetVersion()); SET_SYS("hexversion", PyLong_FromLong(PY_VERSION_HEX)); SET_SYS("_git", Py_BuildValue("(szz)", "CPython", _Py_gitidentifier(), _Py_gitversion())); SET_SYS_FROM_STRING("_framework", _PYTHONFRAMEWORK); SET_SYS("api_version", PyLong_FromLong(PYTHON_API_VERSION)); SET_SYS_FROM_STRING("copyright", Py_GetCopyright()); SET_SYS_FROM_STRING("platform", Py_GetPlatform()); SET_SYS("maxsize", PyLong_FromSsize_t(PY_SSIZE_T_MAX)); SET_SYS("float_info", PyFloat_GetInfo()); SET_SYS("int_info", PyLong_GetInfo()); /* initialize hash_info */ if (_PyStructSequence_InitBuiltin(interp, &Hash_InfoType, &hash_info_desc) < 0) { goto type_init_failed; } SET_SYS("hash_info", get_hash_info(tstate)); SET_SYS("maxunicode", PyLong_FromLong(0x10FFFF)); SET_SYS("builtin_module_names", list_builtin_module_names()); SET_SYS("stdlib_module_names", list_stdlib_module_names()); #if PY_BIG_ENDIAN SET_SYS_FROM_STRING("byteorder", "big"); #else SET_SYS_FROM_STRING("byteorder", "little"); #endif #ifdef MS_COREDLL SET_SYS("dllhandle", PyLong_FromVoidPtr(PyWin_DLLhModule)); SET_SYS_FROM_STRING("winver", PyWin_DLLVersionString); #endif #ifdef ABIFLAGS SET_SYS_FROM_STRING("abiflags", ABIFLAGS); #endif #define ENSURE_INFO_TYPE(TYPE, DESC) \ do { \ if (_PyStructSequence_InitBuiltinWithFlags( \ interp, &TYPE, &DESC, Py_TPFLAGS_DISALLOW_INSTANTIATION) < 0) { \ goto type_init_failed; \ } \ } while (0) /* version_info */ ENSURE_INFO_TYPE(VersionInfoType, version_info_desc); version_info = make_version_info(tstate); SET_SYS("version_info", version_info); /* implementation */ SET_SYS("implementation", make_impl_info(version_info)); // sys.flags: updated in-place later by _PySys_UpdateConfig() ENSURE_INFO_TYPE(FlagsType, flags_desc); SET_SYS("flags", make_flags(tstate->interp)); #if defined(MS_WINDOWS) /* getwindowsversion */ ENSURE_INFO_TYPE(WindowsVersionType, windows_version_desc); SET_SYS_FROM_STRING("_vpath", VPATH); #endif #undef ENSURE_INFO_TYPE /* float repr style: 0.03 (short) vs 0.029999999999999999 (legacy) */ #if _PY_SHORT_FLOAT_REPR == 1 SET_SYS_FROM_STRING("float_repr_style", "short"); #else SET_SYS_FROM_STRING("float_repr_style", "legacy"); #endif SET_SYS("thread_info", PyThread_GetInfo()); /* initialize asyncgen_hooks */ if (_PyStructSequence_InitBuiltin(interp, &AsyncGenHooksType, &asyncgen_hooks_desc) < 0) { goto type_init_failed; } #ifdef __EMSCRIPTEN__ if (EmscriptenInfoType == NULL) { EmscriptenInfoType = PyStructSequence_NewType(&emscripten_info_desc); if (EmscriptenInfoType == NULL) { goto type_init_failed; } } SET_SYS("_emscripten_info", make_emscripten_info()); #endif /* adding sys.path_hooks and sys.path_importer_cache */ SET_SYS("meta_path", PyList_New(0)); SET_SYS("path_importer_cache", PyDict_New()); SET_SYS("path_hooks", PyList_New(0)); if (_PyErr_Occurred(tstate)) { goto err_occurred; } return _PyStatus_OK(); type_init_failed: return _PyStatus_ERR("failed to initialize a type"); err_occurred: return _PyStatus_ERR("can't initialize sys module"); } // Update sys attributes for a new PyConfig configuration. // This function also adds attributes that _PySys_InitCore() didn't add. int _PySys_UpdateConfig(PyThreadState *tstate) { PyInterpreterState *interp = tstate->interp; PyObject *sysdict = interp->sysdict; const PyConfig *config = _PyInterpreterState_GetConfig(interp); int res; #define COPY_LIST(KEY, VALUE) \ SET_SYS(KEY, _PyWideStringList_AsList(&(VALUE))); #define SET_SYS_FROM_WSTR(KEY, VALUE) \ SET_SYS(KEY, PyUnicode_FromWideChar(VALUE, -1)); #define COPY_WSTR(SYS_ATTR, WSTR) \ if (WSTR != NULL) { \ SET_SYS_FROM_WSTR(SYS_ATTR, WSTR); \ } if (config->module_search_paths_set) { COPY_LIST("path", config->module_search_paths); } COPY_WSTR("executable", config->executable); COPY_WSTR("_base_executable", config->base_executable); COPY_WSTR("prefix", config->prefix); COPY_WSTR("base_prefix", config->base_prefix); COPY_WSTR("exec_prefix", config->exec_prefix); COPY_WSTR("base_exec_prefix", config->base_exec_prefix); COPY_WSTR("platlibdir", config->platlibdir); if (config->pycache_prefix != NULL) { SET_SYS_FROM_WSTR("pycache_prefix", config->pycache_prefix); } else { if (PyDict_SetItemString(sysdict, "pycache_prefix", Py_None) < 0) { return -1; } } COPY_LIST("argv", config->argv); COPY_LIST("orig_argv", config->orig_argv); COPY_LIST("warnoptions", config->warnoptions); SET_SYS("_xoptions", _PyConfig_CreateXOptionsDict(config)); const wchar_t *stdlibdir = _Py_GetStdlibDir(); if (stdlibdir != NULL) { SET_SYS_FROM_WSTR("_stdlib_dir", stdlibdir); } else { if (PyDict_SetItemString(sysdict, "_stdlib_dir", Py_None) < 0) { return -1; } } #undef SET_SYS_FROM_WSTR #undef COPY_LIST #undef COPY_WSTR // sys.flags PyObject *flags = _PySys_GetObject(interp, "flags"); // borrowed ref if (flags == NULL) { if (!_PyErr_Occurred(tstate)) { _PyErr_SetString(tstate, PyExc_RuntimeError, "lost sys.flags"); } return -1; } if (set_flags_from_config(interp, flags) < 0) { return -1; } SET_SYS("dont_write_bytecode", PyBool_FromLong(!config->write_bytecode)); if (_PyErr_Occurred(tstate)) { goto err_occurred; } return 0; err_occurred: return -1; } #undef SET_SYS #undef SET_SYS_FROM_STRING /* Set up a preliminary stderr printer until we have enough infrastructure for the io module in place. Use UTF-8/backslashreplace and ignore EAGAIN errors. */ static PyStatus _PySys_SetPreliminaryStderr(PyObject *sysdict) { PyObject *pstderr = PyFile_NewStdPrinter(fileno(stderr)); if (pstderr == NULL) { goto error; } if (PyDict_SetItem(sysdict, &_Py_ID(stderr), pstderr) < 0) { goto error; } if (PyDict_SetItemString(sysdict, "__stderr__", pstderr) < 0) { goto error; } Py_DECREF(pstderr); return _PyStatus_OK(); error: Py_XDECREF(pstderr); return _PyStatus_ERR("can't set preliminary stderr"); } PyObject *_Py_CreateMonitoringObject(void); /* Create sys module without all attributes. _PySys_UpdateConfig() should be called later to add remaining attributes. */ PyStatus _PySys_Create(PyThreadState *tstate, PyObject **sysmod_p) { assert(!_PyErr_Occurred(tstate)); PyInterpreterState *interp = tstate->interp; PyObject *modules = _PyImport_InitModules(interp); if (modules == NULL) { goto error; } PyObject *sysmod = _PyModule_CreateInitialized(&sysmodule, PYTHON_API_VERSION); if (sysmod == NULL) { return _PyStatus_ERR("failed to create a module object"); } #ifdef Py_GIL_DISABLED PyUnstable_Module_SetGIL(sysmod, Py_MOD_GIL_NOT_USED); #endif PyObject *sysdict = PyModule_GetDict(sysmod); if (sysdict == NULL) { goto error; } interp->sysdict = Py_NewRef(sysdict); interp->sysdict_copy = PyDict_Copy(sysdict); if (interp->sysdict_copy == NULL) { goto error; } if (PyDict_SetItemString(sysdict, "modules", modules) < 0) { goto error; } PyStatus status = _PySys_SetPreliminaryStderr(sysdict); if (_PyStatus_EXCEPTION(status)) { return status; } status = _PySys_InitCore(tstate, sysdict); if (_PyStatus_EXCEPTION(status)) { return status; } if (_PyImport_FixupBuiltin(tstate, sysmod, "sys", modules) < 0) { goto error; } PyObject *monitoring = _Py_CreateMonitoringObject(); if (monitoring == NULL) { goto error; } int err = PyDict_SetItemString(sysdict, "monitoring", monitoring); Py_DECREF(monitoring); if (err < 0) { goto error; } assert(!_PyErr_Occurred(tstate)); *sysmod_p = sysmod; return _PyStatus_OK(); error: return _PyStatus_ERR("can't initialize sys module"); } void _PySys_FiniTypes(PyInterpreterState *interp) { _PyStructSequence_FiniBuiltin(interp, &VersionInfoType); _PyStructSequence_FiniBuiltin(interp, &FlagsType); #if defined(MS_WINDOWS) _PyStructSequence_FiniBuiltin(interp, &WindowsVersionType); #endif _PyStructSequence_FiniBuiltin(interp, &Hash_InfoType); _PyStructSequence_FiniBuiltin(interp, &AsyncGenHooksType); #ifdef __EMSCRIPTEN__ if (_Py_IsMainInterpreter(interp)) { Py_CLEAR(EmscriptenInfoType); } #endif } static PyObject * makepathobject(const wchar_t *path, wchar_t delim) { int i, n; const wchar_t *p; PyObject *v, *w; n = 1; p = path; while ((p = wcschr(p, delim)) != NULL) { n++; p++; } v = PyList_New(n); if (v == NULL) return NULL; for (i = 0; ; i++) { p = wcschr(path, delim); if (p == NULL) p = path + wcslen(path); /* End of string */ w = PyUnicode_FromWideChar(path, (Py_ssize_t)(p - path)); if (w == NULL) { Py_DECREF(v); return NULL; } PyList_SET_ITEM(v, i, w); if (*p == '\0') break; path = p+1; } return v; } // Removed in Python 3.13 API, but kept for the stable ABI PyAPI_FUNC(void) PySys_SetPath(const wchar_t *path) { PyObject *v; if ((v = makepathobject(path, DELIM)) == NULL) Py_FatalError("can't create sys.path"); PyInterpreterState *interp = _PyInterpreterState_GET(); if (sys_set_object(interp, &_Py_ID(path), v) != 0) { Py_FatalError("can't assign sys.path"); } Py_DECREF(v); } static PyObject * make_sys_argv(int argc, wchar_t * const * argv) { PyObject *list = PyList_New(argc); if (list == NULL) { return NULL; } for (Py_ssize_t i = 0; i < argc; i++) { PyObject *v = PyUnicode_FromWideChar(argv[i], -1); if (v == NULL) { Py_DECREF(list); return NULL; } PyList_SET_ITEM(list, i, v); } return list; } void PySys_SetArgvEx(int argc, wchar_t **argv, int updatepath) { wchar_t* empty_argv[1] = {L""}; PyThreadState *tstate = _PyThreadState_GET(); if (argc < 1 || argv == NULL) { /* Ensure at least one (empty) argument is seen */ argv = empty_argv; argc = 1; } PyObject *av = make_sys_argv(argc, argv); if (av == NULL) { Py_FatalError("no mem for sys.argv"); } if (sys_set_object_str(tstate->interp, "argv", av) != 0) { Py_DECREF(av); Py_FatalError("can't assign sys.argv"); } Py_DECREF(av); if (updatepath) { /* If argv[0] is not '-c' nor '-m', prepend argv[0] to sys.path. If argv[0] is a symlink, use the real path. */ const PyWideStringList argv_list = {.length = argc, .items = argv}; PyObject *path0 = NULL; if (_PyPathConfig_ComputeSysPath0(&argv_list, &path0)) { if (path0 == NULL) { Py_FatalError("can't compute path0 from argv"); } PyObject *sys_path = _PySys_GetAttr(tstate, &_Py_ID(path)); if (sys_path != NULL) { if (PyList_Insert(sys_path, 0, path0) < 0) { Py_DECREF(path0); Py_FatalError("can't prepend path0 to sys.path"); } } Py_DECREF(path0); } } } void PySys_SetArgv(int argc, wchar_t **argv) { _Py_COMP_DIAG_PUSH _Py_COMP_DIAG_IGNORE_DEPR_DECLS PySys_SetArgvEx(argc, argv, Py_IsolatedFlag == 0); _Py_COMP_DIAG_POP } /* Reimplementation of PyFile_WriteString() no calling indirectly PyErr_CheckSignals(): avoid the call to PyObject_Str(). */ static int sys_pyfile_write_unicode(PyObject *unicode, PyObject *file) { if (file == NULL) return -1; assert(unicode != NULL); PyObject *result = PyObject_CallMethodOneArg(file, &_Py_ID(write), unicode); if (result == NULL) { return -1; } Py_DECREF(result); return 0; } static int sys_pyfile_write(const char *text, PyObject *file) { PyObject *unicode = NULL; int err; if (file == NULL) return -1; unicode = PyUnicode_FromString(text); if (unicode == NULL) return -1; err = sys_pyfile_write_unicode(unicode, file); Py_DECREF(unicode); return err; } /* APIs to write to sys.stdout or sys.stderr using a printf-like interface. Adapted from code submitted by Just van Rossum. PySys_WriteStdout(format, ...) PySys_WriteStderr(format, ...) The first function writes to sys.stdout; the second to sys.stderr. When there is a problem, they write to the real (C level) stdout or stderr; no exceptions are raised. PyErr_CheckSignals() is not called to avoid the execution of the Python signal handlers: they may raise a new exception whereas sys_write() ignores all exceptions. Both take a printf-style format string as their first argument followed by a variable length argument list determined by the format string. *** WARNING *** The format should limit the total size of the formatted output string to 1000 bytes. In particular, this means that no unrestricted "%s" formats should occur; these should be limited using "%.s where is a decimal number calculated so that plus the maximum size of other formatted text does not exceed 1000 bytes. Also watch out for "%f", which can print hundreds of digits for very large numbers. */ static void sys_write(PyObject *key, FILE *fp, const char *format, va_list va) { PyObject *file; char buffer[1001]; int written; PyThreadState *tstate = _PyThreadState_GET(); PyObject *exc = _PyErr_GetRaisedException(tstate); file = _PySys_GetAttr(tstate, key); written = PyOS_vsnprintf(buffer, sizeof(buffer), format, va); if (sys_pyfile_write(buffer, file) != 0) { _PyErr_Clear(tstate); fputs(buffer, fp); } if (written < 0 || (size_t)written >= sizeof(buffer)) { const char *truncated = "... truncated"; if (sys_pyfile_write(truncated, file) != 0) fputs(truncated, fp); } _PyErr_SetRaisedException(tstate, exc); } void PySys_WriteStdout(const char *format, ...) { va_list va; va_start(va, format); sys_write(&_Py_ID(stdout), stdout, format, va); va_end(va); } void PySys_WriteStderr(const char *format, ...) { va_list va; va_start(va, format); sys_write(&_Py_ID(stderr), stderr, format, va); va_end(va); } static void sys_format(PyObject *key, FILE *fp, const char *format, va_list va) { PyObject *file, *message; const char *utf8; PyThreadState *tstate = _PyThreadState_GET(); PyObject *exc = _PyErr_GetRaisedException(tstate); file = _PySys_GetAttr(tstate, key); message = PyUnicode_FromFormatV(format, va); if (message != NULL) { if (sys_pyfile_write_unicode(message, file) != 0) { _PyErr_Clear(tstate); utf8 = PyUnicode_AsUTF8(message); if (utf8 != NULL) fputs(utf8, fp); } Py_DECREF(message); } _PyErr_SetRaisedException(tstate, exc); } void PySys_FormatStdout(const char *format, ...) { va_list va; va_start(va, format); sys_format(&_Py_ID(stdout), stdout, format, va); va_end(va); } void PySys_FormatStderr(const char *format, ...) { va_list va; va_start(va, format); sys_format(&_Py_ID(stderr), stderr, format, va); va_end(va); } int _PySys_SetIntMaxStrDigits(int maxdigits) { if (maxdigits != 0 && maxdigits < _PY_LONG_MAX_STR_DIGITS_THRESHOLD) { PyErr_Format( PyExc_ValueError, "maxdigits must be 0 or larger than %d", _PY_LONG_MAX_STR_DIGITS_THRESHOLD); return -1; } // Set sys.flags.int_max_str_digits const Py_ssize_t pos = SYS_FLAGS_INT_MAX_STR_DIGITS; if (_PySys_SetFlagInt(pos, maxdigits) < 0) { return -1; } // Set PyInterpreterState.long_state.max_str_digits // and PyInterpreterState.config.int_max_str_digits. PyInterpreterState *interp = _PyInterpreterState_GET(); interp->long_state.max_str_digits = maxdigits; interp->config.int_max_str_digits = maxdigits; return 0; }