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 init_uwsgi_vars() { PyObject *pysys, *pysys_dict, *pypath; PyObject *modules = PyImport_GetModuleDict(); PyObject *tmp_module; /* add cwd to pythonpath */ pysys = PyImport_ImportModule("sys"); if (!pysys) { PyErr_Print(); exit(1); } pysys_dict = PyModule_GetDict(pysys); #ifdef PYTHREE // fix stdout and stderr PyObject *new_stdprint = PyFile_NewStdPrinter(2); PyDict_SetItemString(pysys_dict, "stdout", new_stdprint); PyDict_SetItemString(pysys_dict, "__stdout__", new_stdprint); PyDict_SetItemString(pysys_dict, "stderr", new_stdprint); PyDict_SetItemString(pysys_dict, "__stderr__", new_stdprint); #endif pypath = PyDict_GetItemString(pysys_dict, "path"); if (!pypath) { PyErr_Print(); exit(1); } if (PyList_Insert(pypath, 0, UWSGI_PYFROMSTRING(".")) != 0) { PyErr_Print(); } struct uwsgi_string_list *uppp = up.python_path; while(uppp) { if (PyList_Insert(pypath, 0, UWSGI_PYFROMSTRING(uppp->value)) != 0) { PyErr_Print(); } else { uwsgi_log("added %s to pythonpath.\n", uppp->value); } uppp = uppp->next; } struct uwsgi_string_list *uppma = up.pymodule_alias; while(uppma) { // split key=value char *value = strchr(uppma->value, '='); if (!value) { uwsgi_log("invalid pymodule-alias syntax\n"); goto next; } value[0] = 0; if (!strchr(value + 1, '/')) { // this is a standard pymodule tmp_module = PyImport_ImportModule(value + 1); if (!tmp_module) { PyErr_Print(); exit(1); } PyDict_SetItemString(modules, uppma->value, tmp_module); } else { // this is a filepath that need to be mapped tmp_module = uwsgi_pyimport_by_filename(uppma->value, value + 1); if (!tmp_module) { PyErr_Print(); exit(1); } } uwsgi_log("mapped virtual pymodule \"%s\" to real pymodule \"%s\"\n", uppma->value, value + 1); // reset original value value[0] = '='; next: uppma = uppma->next; } }
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 */ }