PyThreadState *
Py_NewInterpreter(void)
{
PyInterpreterState *interp;
PyThreadState *tstate, *save_tstate;
PyObject *bimod, *sysmod;
if (!initialized)
Py_FatalError("Py_NewInterpreter: call Py_Initialize first");
interp = PyInterpreterState_New();
if (interp == NULL)
return NULL;
tstate = PyThreadState_New(interp);
if (tstate == NULL) {
PyInterpreterState_Delete(interp);
return NULL;
}
save_tstate = PyThreadState_Swap(tstate);
/* XXX The following is lax in error checking */
interp->modules = PyDict_New();
interp->modules_reloading = PyDict_New();
bimod = _PyImport_FindExtension("__builtin__", "__builtin__");
if (bimod != NULL) {
interp->builtins = PyModule_GetDict(bimod);
if (interp->builtins == NULL)
goto handle_error;
Py_INCREF(interp->builtins);
}
sysmod = _PyImport_FindExtension("sys", "sys");
if (bimod != NULL && sysmod != NULL) {
interp->sysdict = PyModule_GetDict(sysmod);
if (interp->sysdict == NULL)
goto handle_error;
Py_INCREF(interp->sysdict);
PySys_SetPath(Py_GetPath());
PyDict_SetItemString(interp->sysdict, "modules",
interp->modules);
_PyImportHooks_Init();
initmain();
if (!Py_NoSiteFlag)
initsite();
}
if (!PyErr_Occurred())
return tstate;
handle_error:
/* Oops, it didn't work. Undo it all. */
PyErr_Print();
PyThreadState_Clear(tstate);
PyThreadState_Swap(save_tstate);
PyThreadState_Delete(tstate);
PyInterpreterState_Delete(interp);
return NULL;
}
PyThreadState *
Py_NewInterpreter(void)
{
PyInterpreterState *interp;
PyThreadState *tstate, *save_tstate;
PyObject *bimod, *sysmod;
if (!initialized)
Py_FatalError("Py_NewInterpreter: call Py_Initialize first");
#ifdef WITH_THREAD
/* Issue #10915, #15751: The GIL API doesn't work with multiple
interpreters: disable PyGILState_Check(). */
_PyGILState_check_enabled = 0;
#endif
interp = PyInterpreterState_New();
if (interp == NULL)
return NULL;
tstate = PyThreadState_New(interp);
if (tstate == NULL) {
PyInterpreterState_Delete(interp);
return NULL;
}
save_tstate = PyThreadState_Swap(tstate);
/* XXX The following is lax in error checking */
interp->modules = PyDict_New();
bimod = _PyImport_FindBuiltin("builtins");
if (bimod != NULL) {
interp->builtins = PyModule_GetDict(bimod);
if (interp->builtins == NULL)
goto handle_error;
Py_INCREF(interp->builtins);
}
/* initialize builtin exceptions */
_PyExc_Init(bimod);
sysmod = _PyImport_FindBuiltin("sys");
if (bimod != NULL && sysmod != NULL) {
PyObject *pstderr;
interp->sysdict = PyModule_GetDict(sysmod);
if (interp->sysdict == NULL)
goto handle_error;
Py_INCREF(interp->sysdict);
PySys_SetPath(Py_GetPath());
PyDict_SetItemString(interp->sysdict, "modules",
interp->modules);
/* Set up a preliminary stderr printer until we have enough
infrastructure for the io module in place. */
pstderr = PyFile_NewStdPrinter(fileno(stderr));
if (pstderr == NULL)
Py_FatalError("Py_Initialize: can't set preliminary stderr");
_PySys_SetObjectId(&PyId_stderr, pstderr);
PySys_SetObject("__stderr__", pstderr);
Py_DECREF(pstderr);
_PyImportHooks_Init();
import_init(interp, sysmod);
if (initfsencoding(interp) < 0)
goto handle_error;
if (initstdio() < 0)
Py_FatalError(
"Py_Initialize: can't initialize sys standard streams");
initmain(interp);
if (!Py_NoSiteFlag)
initsite();
}
if (!PyErr_Occurred())
return tstate;
handle_error:
/* Oops, it didn't work. Undo it all. */
PyErr_PrintEx(0);
PyThreadState_Clear(tstate);
PyThreadState_Swap(save_tstate);
PyThreadState_Delete(tstate);
PyInterpreterState_Delete(interp);
return NULL;
}
void
Py_InitializeEx(int install_sigs)
{
PyInterpreterState *interp;
PyThreadState *tstate;
PyObject *bimod, *sysmod;
char *p;
#if defined(Py_USING_UNICODE) && defined(HAVE_LANGINFO_H) && defined(CODESET)
char *codeset;
char *saved_locale;
PyObject *sys_stream, *sys_isatty;
#endif
extern void _Py_ReadyTypes(void);
if (initialized)
return;
initialized = 1;
if ((p = Py_GETENV("PYTHONDEBUG")) && *p != '\0')
Py_DebugFlag = add_flag(Py_DebugFlag, p);
if ((p = Py_GETENV("PYTHONVERBOSE")) && *p != '\0')
Py_VerboseFlag = add_flag(Py_VerboseFlag, p);
if ((p = Py_GETENV("PYTHONOPTIMIZE")) && *p != '\0')
Py_OptimizeFlag = add_flag(Py_OptimizeFlag, p);
interp = PyInterpreterState_New();
if (interp == NULL)
Py_FatalError("Py_Initialize: can't make first interpreter");
tstate = PyThreadState_New(interp);
if (tstate == NULL)
Py_FatalError("Py_Initialize: can't make first thread");
(void) PyThreadState_Swap(tstate);
_Py_ReadyTypes();
if (!_PyFrame_Init())
Py_FatalError("Py_Initialize: can't init frames");
if (!_PyInt_Init())
Py_FatalError("Py_Initialize: can't init ints");
_PyFloat_Init();
interp->modules = PyDict_New();
if (interp->modules == NULL)
Py_FatalError("Py_Initialize: can't make modules dictionary");
interp->modules_reloading = PyDict_New();
if (interp->modules_reloading == NULL)
Py_FatalError("Py_Initialize: can't make modules_reloading dictionary");
#ifdef Py_USING_UNICODE
/* Init Unicode implementation; relies on the codec registry */
_PyUnicode_Init();
#endif
bimod = _PyBuiltin_Init();
if (bimod == NULL)
Py_FatalError("Py_Initialize: can't initialize __builtin__");
interp->builtins = PyModule_GetDict(bimod);
if (interp->builtins == NULL)
Py_FatalError("Py_Initialize: can't initialize builtins dict");
Py_INCREF(interp->builtins);
sysmod = _PySys_Init();
if (sysmod == NULL)
Py_FatalError("Py_Initialize: can't initialize sys");
interp->sysdict = PyModule_GetDict(sysmod);
if (interp->sysdict == NULL)
Py_FatalError("Py_Initialize: can't initialize sys dict");
Py_INCREF(interp->sysdict);
_PyImport_FixupExtension("sys", "sys");
PySys_SetPath(Py_GetPath());
PyDict_SetItemString(interp->sysdict, "modules",
interp->modules);
_PyImport_Init();
/* initialize builtin exceptions */
_PyExc_Init();
_PyImport_FixupExtension("exceptions", "exceptions");
/* phase 2 of builtins */
_PyImport_FixupExtension("__builtin__", "__builtin__");
_PyImportHooks_Init();
if (install_sigs)
initsigs(); /* Signal handling stuff, including initintr() */
initmain(); /* Module __main__ */
if (!Py_NoSiteFlag)
initsite(); /* Module site */
/* auto-thread-state API, if available */
#ifdef WITH_THREAD
_PyGILState_Init(interp, tstate);
#endif /* WITH_THREAD */
warnings_module = PyImport_ImportModule("warnings");
if (!warnings_module)
PyErr_Clear();
#if defined(Py_USING_UNICODE) && defined(HAVE_LANGINFO_H) && defined(CODESET)
/* On Unix, set the file system encoding according to the
user's preference, if the CODESET names a well-known
Python codec, and Py_FileSystemDefaultEncoding isn't
initialized by other means. Also set the encoding of
stdin and stdout if these are terminals. */
saved_locale = strdup(setlocale(LC_CTYPE, NULL));
setlocale(LC_CTYPE, "");
codeset = nl_langinfo(CODESET);
if (codeset && *codeset) {
PyObject *enc = PyCodec_Encoder(codeset);
if (enc) {
codeset = strdup(codeset);
Py_DECREF(enc);
} else {
codeset = NULL;
PyErr_Clear();
}
} else
codeset = NULL;
setlocale(LC_CTYPE, saved_locale);
free(saved_locale);
if (codeset) {
sys_stream = PySys_GetObject("stdin");
sys_isatty = PyObject_CallMethod(sys_stream, "isatty", "");
if (!sys_isatty)
PyErr_Clear();
if(sys_isatty && PyObject_IsTrue(sys_isatty) &&
PyFile_Check(sys_stream)) {
if (!PyFile_SetEncoding(sys_stream, codeset))
Py_FatalError("Cannot set codeset of stdin");
}
Py_XDECREF(sys_isatty);
sys_stream = PySys_GetObject("stdout");
sys_isatty = PyObject_CallMethod(sys_stream, "isatty", "");
if (!sys_isatty)
PyErr_Clear();
if(sys_isatty && PyObject_IsTrue(sys_isatty) &&
PyFile_Check(sys_stream)) {
if (!PyFile_SetEncoding(sys_stream, codeset))
Py_FatalError("Cannot set codeset of stdout");
}
Py_XDECREF(sys_isatty);
sys_stream = PySys_GetObject("stderr");
sys_isatty = PyObject_CallMethod(sys_stream, "isatty", "");
if (!sys_isatty)
PyErr_Clear();
if(sys_isatty && PyObject_IsTrue(sys_isatty) &&
PyFile_Check(sys_stream)) {
if (!PyFile_SetEncoding(sys_stream, codeset))
Py_FatalError("Cannot set codeset of stderr");
}
Py_XDECREF(sys_isatty);
if (!Py_FileSystemDefaultEncoding)
Py_FileSystemDefaultEncoding = codeset;
else
free(codeset);
}
#endif
}
void
_Py_InitializeEx_Private(int install_sigs, int install_importlib)
{
PyInterpreterState *interp;
PyThreadState *tstate;
PyObject *bimod, *sysmod, *pstderr;
char *p;
extern void _Py_ReadyTypes(void);
if (initialized)
return;
initialized = 1;
_Py_Finalizing = NULL;
#if defined(HAVE_LANGINFO_H) && defined(HAVE_SETLOCALE)
/* Set up the LC_CTYPE locale, so we can obtain
the locale's charset without having to switch
locales. */
setlocale(LC_CTYPE, "");
#endif
if ((p = Py_GETENV("PYTHONDEBUG")) && *p != '\0')
Py_DebugFlag = add_flag(Py_DebugFlag, p);
if ((p = Py_GETENV("PYTHONVERBOSE")) && *p != '\0')
Py_VerboseFlag = add_flag(Py_VerboseFlag, p);
if ((p = Py_GETENV("PYTHONOPTIMIZE")) && *p != '\0')
Py_OptimizeFlag = add_flag(Py_OptimizeFlag, p);
if ((p = Py_GETENV("PYTHONDONTWRITEBYTECODE")) && *p != '\0')
Py_DontWriteBytecodeFlag = add_flag(Py_DontWriteBytecodeFlag, p);
/* The variable is only tested for existence here; _PyRandom_Init will
check its value further. */
if ((p = Py_GETENV("PYTHONHASHSEED")) && *p != '\0')
Py_HashRandomizationFlag = add_flag(Py_HashRandomizationFlag, p);
_PyRandom_Init();
interp = PyInterpreterState_New();
if (interp == NULL)
Py_FatalError("Py_Initialize: can't make first interpreter");
tstate = PyThreadState_New(interp);
if (tstate == NULL)
Py_FatalError("Py_Initialize: can't make first thread");
(void) PyThreadState_Swap(tstate);
#ifdef WITH_THREAD
/* We can't call _PyEval_FiniThreads() in Py_FinalizeEx because
destroying the GIL might fail when it is being referenced from
another running thread (see issue #9901).
Instead we destroy the previously created GIL here, which ensures
that we can call Py_Initialize / Py_FinalizeEx multiple times. */
_PyEval_FiniThreads();
/* Auto-thread-state API */
_PyGILState_Init(interp, tstate);
#endif /* WITH_THREAD */
_Py_ReadyTypes();
if (!_PyFrame_Init())
Py_FatalError("Py_Initialize: can't init frames");
if (!_PyLong_Init())
Py_FatalError("Py_Initialize: can't init longs");
if (!PyByteArray_Init())
Py_FatalError("Py_Initialize: can't init bytearray");
if (!_PyFloat_Init())
Py_FatalError("Py_Initialize: can't init float");
interp->modules = PyDict_New();
if (interp->modules == NULL)
Py_FatalError("Py_Initialize: can't make modules dictionary");
/* Init Unicode implementation; relies on the codec registry */
if (_PyUnicode_Init() < 0)
Py_FatalError("Py_Initialize: can't initialize unicode");
if (_PyStructSequence_Init() < 0)
Py_FatalError("Py_Initialize: can't initialize structseq");
bimod = _PyBuiltin_Init();
if (bimod == NULL)
Py_FatalError("Py_Initialize: can't initialize builtins modules");
_PyImport_FixupBuiltin(bimod, "builtins");
interp->builtins = PyModule_GetDict(bimod);
if (interp->builtins == NULL)
Py_FatalError("Py_Initialize: can't initialize builtins dict");
Py_INCREF(interp->builtins);
/* initialize builtin exceptions */
_PyExc_Init(bimod);
sysmod = _PySys_Init();
if (sysmod == NULL)
Py_FatalError("Py_Initialize: can't initialize sys");
interp->sysdict = PyModule_GetDict(sysmod);
if (interp->sysdict == NULL)
Py_FatalError("Py_Initialize: can't initialize sys dict");
Py_INCREF(interp->sysdict);
_PyImport_FixupBuiltin(sysmod, "sys");
PySys_SetPath(Py_GetPath());
PyDict_SetItemString(interp->sysdict, "modules",
interp->modules);
/* Set up a preliminary stderr printer until we have enough
infrastructure for the io module in place. */
pstderr = PyFile_NewStdPrinter(fileno(stderr));
if (pstderr == NULL)
Py_FatalError("Py_Initialize: can't set preliminary stderr");
_PySys_SetObjectId(&PyId_stderr, pstderr);
PySys_SetObject("__stderr__", pstderr);
Py_DECREF(pstderr);
_PyImport_Init();
_PyImportHooks_Init();
/* Initialize _warnings. */
_PyWarnings_Init();
if (!install_importlib)
return;
if (_PyTime_Init() < 0)
Py_FatalError("Py_Initialize: can't initialize time");
import_init(interp, sysmod);
/* initialize the faulthandler module */
if (_PyFaulthandler_Init())
Py_FatalError("Py_Initialize: can't initialize faulthandler");
if (initfsencoding(interp) < 0)
Py_FatalError("Py_Initialize: unable to load the file system codec");
if (install_sigs)
initsigs(); /* Signal handling stuff, including initintr() */
if (_PyTraceMalloc_Init() < 0)
Py_FatalError("Py_Initialize: can't initialize tracemalloc");
initmain(interp); /* Module __main__ */
if (initstdio() < 0)
Py_FatalError(
"Py_Initialize: can't initialize sys standard streams");
/* Initialize warnings. */
if (PySys_HasWarnOptions()) {
PyObject *warnings_module = PyImport_ImportModule("warnings");
if (warnings_module == NULL) {
fprintf(stderr, "'import warnings' failed; traceback:\n");
PyErr_Print();
}
Py_XDECREF(warnings_module);
}
if (!Py_NoSiteFlag)
initsite(); /* Module site */
}