symbian-qemu-0.9.1-12/python-2.6.1/Python/pythonrun.c
changeset 1 2fb8b9db1c86
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/python-2.6.1/Python/pythonrun.c	Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,1942 @@
+
+/* Python interpreter top-level routines, including init/exit */
+
+#include "Python.h"
+
+#include "Python-ast.h"
+#undef Yield /* undefine macro conflicting with winbase.h */
+#include "grammar.h"
+#include "node.h"
+#include "token.h"
+#include "parsetok.h"
+#include "errcode.h"
+#include "code.h"
+#include "compile.h"
+#include "symtable.h"
+#include "pyarena.h"
+#include "ast.h"
+#include "eval.h"
+#include "marshal.h"
+
+#ifdef HAVE_SIGNAL_H
+#include <signal.h>
+#endif
+
+#ifdef HAVE_LANGINFO_H
+#include <locale.h>
+#include <langinfo.h>
+#endif
+
+#ifdef MS_WINDOWS
+#undef BYTE
+#include "windows.h"
+#endif
+
+#ifndef Py_REF_DEBUG
+#define PRINT_TOTAL_REFS()
+#else /* Py_REF_DEBUG */
+#define PRINT_TOTAL_REFS() fprintf(stderr,				\
+				   "[%" PY_FORMAT_SIZE_T "d refs]\n",	\
+				   _Py_GetRefTotal())
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern char *Py_GetPath(void);
+
+extern grammar _PyParser_Grammar; /* From graminit.c */
+
+/* Forward */
+static void initmain(void);
+static void initsite(void);
+static PyObject *run_mod(mod_ty, const char *, PyObject *, PyObject *,
+			  PyCompilerFlags *, PyArena *);
+static PyObject *run_pyc_file(FILE *, const char *, PyObject *, PyObject *,
+			      PyCompilerFlags *);
+static void err_input(perrdetail *);
+static void initsigs(void);
+static void call_sys_exitfunc(void);
+static void call_ll_exitfuncs(void);
+extern void _PyUnicode_Init(void);
+extern void _PyUnicode_Fini(void);
+
+#ifdef WITH_THREAD
+extern void _PyGILState_Init(PyInterpreterState *, PyThreadState *);
+extern void _PyGILState_Fini(void);
+#endif /* WITH_THREAD */
+
+int Py_DebugFlag; /* Needed by parser.c */
+int Py_VerboseFlag; /* Needed by import.c */
+int Py_InteractiveFlag; /* Needed by Py_FdIsInteractive() below */
+int Py_InspectFlag; /* Needed to determine whether to exit at SystemError */
+int Py_NoSiteFlag; /* Suppress 'import site' */
+int Py_BytesWarningFlag; /* Warn on str(bytes) and str(buffer) */
+int Py_DontWriteBytecodeFlag; /* Suppress writing bytecode files (*.py[co]) */
+int Py_UseClassExceptionsFlag = 1; /* Needed by bltinmodule.c: deprecated */
+int Py_FrozenFlag; /* Needed by getpath.c */
+int Py_UnicodeFlag = 0; /* Needed by compile.c */
+int Py_IgnoreEnvironmentFlag; /* e.g. PYTHONPATH, PYTHONHOME */
+/* _XXX Py_QnewFlag should go away in 2.3.  It's true iff -Qnew is passed,
+  on the command line, and is used in 2.2 by ceval.c to make all "/" divisions
+  true divisions (which they will be in 2.3). */
+int _Py_QnewFlag = 0;
+int Py_NoUserSiteDirectory = 0; /* for -s and site.py */
+
+/* PyModule_GetWarningsModule is no longer necessary as of 2.6
+since _warnings is builtin.  This API should not be used. */
+PyObject *
+PyModule_GetWarningsModule(void)
+{
+	return PyImport_ImportModule("warnings");
+}
+
+static int initialized = 0;
+
+/* API to access the initialized flag -- useful for esoteric use */
+
+int
+Py_IsInitialized(void)
+{
+	return initialized;
+}
+
+/* Global initializations.  Can be undone by Py_Finalize().  Don't
+   call this twice without an intervening Py_Finalize() call.  When
+   initializations fail, a fatal error is issued and the function does
+   not return.  On return, the first thread and interpreter state have
+   been created.
+
+   Locking: you must hold the interpreter lock while calling this.
+   (If the lock has not yet been initialized, that's equivalent to
+   having the lock, but you cannot use multiple threads.)
+
+*/
+
+static int
+add_flag(int flag, const char *envs)
+{
+	int env = atoi(envs);
+	if (flag < env)
+		flag = env;
+	if (flag < 1)
+		flag = 1;
+	return flag;
+}
+
+void
+Py_InitializeEx(int install_sigs)
+{
+	PyInterpreterState *interp;
+	PyThreadState *tstate;
+	PyObject *bimod, *sysmod;
+	char *p;
+	char *icodeset = NULL; /* On Windows, input codeset may theoretically 
+			          differ from output codeset. */
+	char *codeset = NULL;
+	char *errors = NULL;
+	int free_codeset = 0;
+	int overridden = 0;
+	PyObject *sys_stream, *sys_isatty;
+#if defined(Py_USING_UNICODE) && defined(HAVE_LANGINFO_H) && defined(CODESET)
+	char *saved_locale, *loc_codeset;
+#endif
+#ifdef MS_WINDOWS
+	char ibuf[128];
+	char buf[128];
+#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);
+	if ((p = Py_GETENV("PYTHONDONTWRITEBYTECODE")) && *p != '\0')
+		Py_DontWriteBytecodeFlag = add_flag(Py_DontWriteBytecodeFlag, 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");
+
+	if (!PyByteArray_Init())
+		Py_FatalError("Py_Initialize: can't init bytearray");
+
+	_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() */
+		
+	/* Initialize warnings. */
+	_PyWarnings_Init();
+	if (PySys_HasWarnOptions()) {
+		PyObject *warnings_module = PyImport_ImportModule("warnings");
+		if (!warnings_module)
+			PyErr_Clear();
+		Py_XDECREF(warnings_module);
+	}
+
+	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 */
+
+	if ((p = Py_GETENV("PYTHONIOENCODING")) && *p != '\0') {
+		p = icodeset = codeset = strdup(p);
+		free_codeset = 1;
+		errors = strchr(p, ':');
+		if (errors) {
+			*errors = '\0';
+			errors++;
+		}
+		overridden = 1;
+	}
+
+#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, unless overridden.  */
+
+	if (!overridden || !Py_FileSystemDefaultEncoding) {
+		saved_locale = strdup(setlocale(LC_CTYPE, NULL));
+		setlocale(LC_CTYPE, "");
+		loc_codeset = nl_langinfo(CODESET);
+		if (loc_codeset && *loc_codeset) {
+			PyObject *enc = PyCodec_Encoder(loc_codeset);
+			if (enc) {
+				loc_codeset = strdup(loc_codeset);
+				Py_DECREF(enc);
+			} else {
+				loc_codeset = NULL;
+				PyErr_Clear();
+			}
+		} else
+			loc_codeset = NULL;
+		setlocale(LC_CTYPE, saved_locale);
+		free(saved_locale);
+
+		if (!overridden) {
+			codeset = icodeset = loc_codeset;
+			free_codeset = 1;
+		}
+
+		/* Initialize Py_FileSystemDefaultEncoding from
+		   locale even if PYTHONIOENCODING is set. */
+		if (!Py_FileSystemDefaultEncoding) {
+			Py_FileSystemDefaultEncoding = loc_codeset;
+			if (!overridden)
+				free_codeset = 0;
+		}
+	}
+#endif
+
+#ifdef MS_WINDOWS
+	if (!overridden) {
+		icodeset = ibuf;
+		codeset = buf;
+		sprintf(ibuf, "cp%d", GetConsoleCP());
+		sprintf(buf, "cp%d", GetConsoleOutputCP());
+	}
+#endif
+
+	if (codeset) {
+		sys_stream = PySys_GetObject("stdin");
+		sys_isatty = PyObject_CallMethod(sys_stream, "isatty", "");
+		if (!sys_isatty)
+			PyErr_Clear();
+		if ((overridden ||
+		     (sys_isatty && PyObject_IsTrue(sys_isatty))) &&
+		   PyFile_Check(sys_stream)) {
+			if (!PyFile_SetEncodingAndErrors(sys_stream, icodeset, errors))
+				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 ((overridden || 
+		     (sys_isatty && PyObject_IsTrue(sys_isatty))) &&
+		   PyFile_Check(sys_stream)) {
+			if (!PyFile_SetEncodingAndErrors(sys_stream, codeset, errors))
+				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((overridden || 
+		    (sys_isatty && PyObject_IsTrue(sys_isatty))) &&
+		   PyFile_Check(sys_stream)) {
+			if (!PyFile_SetEncodingAndErrors(sys_stream, codeset, errors))
+				Py_FatalError("Cannot set codeset of stderr");
+		}
+		Py_XDECREF(sys_isatty);
+
+		if (free_codeset)
+			free(codeset);
+	}
+}
+
+void
+Py_Initialize(void)
+{
+	Py_InitializeEx(1);
+}
+
+
+#ifdef COUNT_ALLOCS
+extern void dump_counts(FILE*);
+#endif
+
+/* Undo the effect of Py_Initialize().
+
+   Beware: if multiple interpreter and/or thread states exist, these
+   are not wiped out; only the current thread and interpreter state
+   are deleted.  But since everything else is deleted, those other
+   interpreter and thread states should no longer be used.
+
+   (XXX We should do better, e.g. wipe out all interpreters and
+   threads.)
+
+   Locking: as above.
+
+*/
+
+void
+Py_Finalize(void)
+{
+	PyInterpreterState *interp;
+	PyThreadState *tstate;
+
+	if (!initialized)
+		return;
+
+	/* The interpreter is still entirely intact at this point, and the
+	 * exit funcs may be relying on that.  In particular, if some thread
+	 * or exit func is still waiting to do an import, the import machinery
+	 * expects Py_IsInitialized() to return true.  So don't say the
+	 * interpreter is uninitialized until after the exit funcs have run.
+	 * Note that Threading.py uses an exit func to do a join on all the
+	 * threads created thru it, so this also protects pending imports in
+	 * the threads created via Threading.
+	 */
+	call_sys_exitfunc();
+	initialized = 0;
+
+	/* Get current thread state and interpreter pointer */
+	tstate = PyThreadState_GET();
+	interp = tstate->interp;
+
+	/* Disable signal handling */
+	PyOS_FiniInterrupts();
+
+	/* Clear type lookup cache */
+	PyType_ClearCache();
+
+	/* Collect garbage.  This may call finalizers; it's nice to call these
+	 * before all modules are destroyed.
+	 * XXX If a __del__ or weakref callback is triggered here, and tries to
+	 * XXX import a module, bad things can happen, because Python no
+	 * XXX longer believes it's initialized.
+	 * XXX     Fatal Python error: Interpreter not initialized (version mismatch?)
+	 * XXX is easy to provoke that way.  I've also seen, e.g.,
+	 * XXX     Exception exceptions.ImportError: 'No module named sha'
+	 * XXX         in <function callback at 0x008F5718> ignored
+	 * XXX but I'm unclear on exactly how that one happens.  In any case,
+	 * XXX I haven't seen a real-life report of either of these.
+	 */
+	PyGC_Collect();
+#ifdef COUNT_ALLOCS
+	/* With COUNT_ALLOCS, it helps to run GC multiple times:
+	   each collection might release some types from the type
+	   list, so they become garbage. */
+	while (PyGC_Collect() > 0)
+		/* nothing */;
+#endif
+
+	/* Destroy all modules */
+	PyImport_Cleanup();
+
+	/* Collect final garbage.  This disposes of cycles created by
+	 * new-style class definitions, for example.
+	 * XXX This is disabled because it caused too many problems.  If
+	 * XXX a __del__ or weakref callback triggers here, Python code has
+	 * XXX a hard time running, because even the sys module has been
+	 * XXX cleared out (sys.stdout is gone, sys.excepthook is gone, etc).
+	 * XXX One symptom is a sequence of information-free messages
+	 * XXX coming from threads (if a __del__ or callback is invoked,
+	 * XXX other threads can execute too, and any exception they encounter
+	 * XXX triggers a comedy of errors as subsystem after subsystem
+	 * XXX fails to find what it *expects* to find in sys to help report
+	 * XXX the exception and consequent unexpected failures).  I've also
+	 * XXX seen segfaults then, after adding print statements to the
+	 * XXX Python code getting called.
+	 */
+#if 0
+	PyGC_Collect();
+#endif
+
+	/* Destroy the database used by _PyImport_{Fixup,Find}Extension */
+	_PyImport_Fini();
+
+	/* Debugging stuff */
+#ifdef COUNT_ALLOCS
+	dump_counts(stdout);
+#endif
+
+	PRINT_TOTAL_REFS();
+
+#ifdef Py_TRACE_REFS
+	/* Display all objects still alive -- this can invoke arbitrary
+	 * __repr__ overrides, so requires a mostly-intact interpreter.
+	 * Alas, a lot of stuff may still be alive now that will be cleaned
+	 * up later.
+	 */
+	if (Py_GETENV("PYTHONDUMPREFS"))
+		_Py_PrintReferences(stderr);
+#endif /* Py_TRACE_REFS */
+
+	/* Clear interpreter state */
+	PyInterpreterState_Clear(interp);
+
+	/* Now we decref the exception classes.  After this point nothing
+	   can raise an exception.  That's okay, because each Fini() method
+	   below has been checked to make sure no exceptions are ever
+	   raised.
+	*/
+
+	_PyExc_Fini();
+
+	/* Cleanup auto-thread-state */
+#ifdef WITH_THREAD
+	_PyGILState_Fini();
+#endif /* WITH_THREAD */
+
+	/* Delete current thread */
+	PyThreadState_Swap(NULL);
+	PyInterpreterState_Delete(interp);
+
+	/* Sundry finalizers */
+	PyMethod_Fini();
+	PyFrame_Fini();
+	PyCFunction_Fini();
+	PyTuple_Fini();
+	PyList_Fini();
+	PySet_Fini();
+	PyString_Fini();
+	PyByteArray_Fini();
+	PyInt_Fini();
+	PyFloat_Fini();
+	PyDict_Fini();
+
+#ifdef Py_USING_UNICODE
+	/* Cleanup Unicode implementation */
+	_PyUnicode_Fini();
+#endif
+
+	/* XXX Still allocated:
+	   - various static ad-hoc pointers to interned strings
+	   - int and float free list blocks
+	   - whatever various modules and libraries allocate
+	*/
+
+	PyGrammar_RemoveAccelerators(&_PyParser_Grammar);
+
+#ifdef Py_TRACE_REFS
+	/* Display addresses (& refcnts) of all objects still alive.
+	 * An address can be used to find the repr of the object, printed
+	 * above by _Py_PrintReferences.
+	 */
+	if (Py_GETENV("PYTHONDUMPREFS"))
+		_Py_PrintReferenceAddresses(stderr);
+#endif /* Py_TRACE_REFS */
+#ifdef PYMALLOC_DEBUG
+	if (Py_GETENV("PYTHONMALLOCSTATS"))
+		_PyObject_DebugMallocStats();
+#endif
+
+	call_ll_exitfuncs();
+}
+
+/* Create and initialize a new interpreter and thread, and return the
+   new thread.  This requires that Py_Initialize() has been called
+   first.
+
+   Unsuccessful initialization yields a NULL pointer.  Note that *no*
+   exception information is available even in this case -- the
+   exception information is held in the thread, and there is no
+   thread.
+
+   Locking: as above.
+
+*/
+
+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;
+}
+
+/* Delete an interpreter and its last thread.  This requires that the
+   given thread state is current, that the thread has no remaining
+   frames, and that it is its interpreter's only remaining thread.
+   It is a fatal error to violate these constraints.
+
+   (Py_Finalize() doesn't have these constraints -- it zaps
+   everything, regardless.)
+
+   Locking: as above.
+
+*/
+
+void
+Py_EndInterpreter(PyThreadState *tstate)
+{
+	PyInterpreterState *interp = tstate->interp;
+
+	if (tstate != PyThreadState_GET())
+		Py_FatalError("Py_EndInterpreter: thread is not current");
+	if (tstate->frame != NULL)
+		Py_FatalError("Py_EndInterpreter: thread still has a frame");
+	if (tstate != interp->tstate_head || tstate->next != NULL)
+		Py_FatalError("Py_EndInterpreter: not the last thread");
+
+	PyImport_Cleanup();
+	PyInterpreterState_Clear(interp);
+	PyThreadState_Swap(NULL);
+	PyInterpreterState_Delete(interp);
+}
+
+static char *progname = "python";
+
+void
+Py_SetProgramName(char *pn)
+{
+	if (pn && *pn)
+		progname = pn;
+}
+
+char *
+Py_GetProgramName(void)
+{
+	return progname;
+}
+
+static char *default_home = NULL;
+
+void
+Py_SetPythonHome(char *home)
+{
+	default_home = home;
+}
+
+char *
+Py_GetPythonHome(void)
+{
+	char *home = default_home;
+	if (home == NULL && !Py_IgnoreEnvironmentFlag)
+		home = Py_GETENV("PYTHONHOME");
+	return home;
+}
+
+/* Create __main__ module */
+
+static void
+initmain(void)
+{
+	PyObject *m, *d;
+	m = PyImport_AddModule("__main__");
+	if (m == NULL)
+		Py_FatalError("can't create __main__ module");
+	d = PyModule_GetDict(m);
+	if (PyDict_GetItemString(d, "__builtins__") == NULL) {
+		PyObject *bimod = PyImport_ImportModule("__builtin__");
+		if (bimod == NULL ||
+		    PyDict_SetItemString(d, "__builtins__", bimod) != 0)
+			Py_FatalError("can't add __builtins__ to __main__");
+		Py_DECREF(bimod);
+	}
+}
+
+/* Import the site module (not into __main__ though) */
+
+static void
+initsite(void)
+{
+	PyObject *m, *f;
+	m = PyImport_ImportModule("site");
+	if (m == NULL) {
+		f = PySys_GetObject("stderr");
+		if (Py_VerboseFlag) {
+			PyFile_WriteString(
+				"'import site' failed; traceback:\n", f);
+			PyErr_Print();
+		}
+		else {
+			PyFile_WriteString(
+			  "'import site' failed; use -v for traceback\n", f);
+			PyErr_Clear();
+		}
+	}
+	else {
+		Py_DECREF(m);
+	}
+}
+
+/* Parse input from a file and execute it */
+
+int
+PyRun_AnyFileExFlags(FILE *fp, const char *filename, int closeit,
+		     PyCompilerFlags *flags)
+{
+	if (filename == NULL)
+		filename = "???";
+	if (Py_FdIsInteractive(fp, filename)) {
+		int err = PyRun_InteractiveLoopFlags(fp, filename, flags);
+		if (closeit)
+			fclose(fp);
+		return err;
+	}
+	else
+		return PyRun_SimpleFileExFlags(fp, filename, closeit, flags);
+}
+
+int
+PyRun_InteractiveLoopFlags(FILE *fp, const char *filename, PyCompilerFlags *flags)
+{
+	PyObject *v;
+	int ret;
+	PyCompilerFlags local_flags;
+
+	if (flags == NULL) {
+		flags = &local_flags;
+		local_flags.cf_flags = 0;
+	}
+	v = PySys_GetObject("ps1");
+	if (v == NULL) {
+		PySys_SetObject("ps1", v = PyString_FromString(">>> "));
+		Py_XDECREF(v);
+	}
+	v = PySys_GetObject("ps2");
+	if (v == NULL) {
+		PySys_SetObject("ps2", v = PyString_FromString("... "));
+		Py_XDECREF(v);
+	}
+	for (;;) {
+		ret = PyRun_InteractiveOneFlags(fp, filename, flags);
+		PRINT_TOTAL_REFS();
+		if (ret == E_EOF)
+			return 0;
+		/*
+		if (ret == E_NOMEM)
+			return -1;
+		*/
+	}
+}
+
+#if 0
+/* compute parser flags based on compiler flags */
+#define PARSER_FLAGS(flags) \
+	((flags) ? ((((flags)->cf_flags & PyCF_DONT_IMPLY_DEDENT) ? \
+		      PyPARSE_DONT_IMPLY_DEDENT : 0)) : 0)
+#endif
+#if 1
+/* Keep an example of flags with future keyword support. */
+#define PARSER_FLAGS(flags) \
+	((flags) ? ((((flags)->cf_flags & PyCF_DONT_IMPLY_DEDENT) ? \
+		      PyPARSE_DONT_IMPLY_DEDENT : 0) \
+		    | (((flags)->cf_flags & CO_FUTURE_PRINT_FUNCTION) ? \
+		       PyPARSE_PRINT_IS_FUNCTION : 0) \
+		    | (((flags)->cf_flags & CO_FUTURE_UNICODE_LITERALS) ? \
+		       PyPARSE_UNICODE_LITERALS : 0) \
+		    ) : 0)
+#endif
+
+int
+PyRun_InteractiveOneFlags(FILE *fp, const char *filename, PyCompilerFlags *flags)
+{
+	PyObject *m, *d, *v, *w;
+	mod_ty mod;
+	PyArena *arena;
+	char *ps1 = "", *ps2 = "";
+	int errcode = 0;
+
+	v = PySys_GetObject("ps1");
+	if (v != NULL) {
+		v = PyObject_Str(v);
+		if (v == NULL)
+			PyErr_Clear();
+		else if (PyString_Check(v))
+			ps1 = PyString_AsString(v);
+	}
+	w = PySys_GetObject("ps2");
+	if (w != NULL) {
+		w = PyObject_Str(w);
+		if (w == NULL)
+			PyErr_Clear();
+		else if (PyString_Check(w))
+			ps2 = PyString_AsString(w);
+	}
+	arena = PyArena_New();
+	if (arena == NULL) {
+		Py_XDECREF(v);
+		Py_XDECREF(w);
+		return -1;
+	}
+	mod = PyParser_ASTFromFile(fp, filename,
+				   Py_single_input, ps1, ps2,
+				   flags, &errcode, arena);
+	Py_XDECREF(v);
+	Py_XDECREF(w);
+	if (mod == NULL) {
+		PyArena_Free(arena);
+		if (errcode == E_EOF) {
+			PyErr_Clear();
+			return E_EOF;
+		}
+		PyErr_Print();
+		return -1;
+	}
+	m = PyImport_AddModule("__main__");
+	if (m == NULL) {
+		PyArena_Free(arena);
+		return -1;
+	}
+	d = PyModule_GetDict(m);
+	v = run_mod(mod, filename, d, d, flags, arena);
+	PyArena_Free(arena);
+	if (v == NULL) {
+		PyErr_Print();
+		return -1;
+	}
+	Py_DECREF(v);
+	if (Py_FlushLine())
+		PyErr_Clear();
+	return 0;
+}
+
+/* Check whether a file maybe a pyc file: Look at the extension,
+   the file type, and, if we may close it, at the first few bytes. */
+
+static int
+maybe_pyc_file(FILE *fp, const char* filename, const char* ext, int closeit)
+{
+	if (strcmp(ext, ".pyc") == 0 || strcmp(ext, ".pyo") == 0)
+		return 1;
+
+	/* Only look into the file if we are allowed to close it, since
+	   it then should also be seekable. */
+	if (closeit) {
+		/* Read only two bytes of the magic. If the file was opened in
+		   text mode, the bytes 3 and 4 of the magic (\r\n) might not
+		   be read as they are on disk. */
+		unsigned int halfmagic = PyImport_GetMagicNumber() & 0xFFFF;
+		unsigned char buf[2];
+		/* Mess:  In case of -x, the stream is NOT at its start now,
+		   and ungetc() was used to push back the first newline,
+		   which makes the current stream position formally undefined,
+		   and a x-platform nightmare.
+		   Unfortunately, we have no direct way to know whether -x
+		   was specified.  So we use a terrible hack:  if the current
+		   stream position is not 0, we assume -x was specified, and
+		   give up.  Bug 132850 on SourceForge spells out the
+		   hopelessness of trying anything else (fseek and ftell
+		   don't work predictably x-platform for text-mode files).
+		*/
+		int ispyc = 0;
+		if (ftell(fp) == 0) {
+			if (fread(buf, 1, 2, fp) == 2 &&
+			    ((unsigned int)buf[1]<<8 | buf[0]) == halfmagic)
+				ispyc = 1;
+			rewind(fp);
+		}
+		return ispyc;
+	}
+	return 0;
+}
+
+int
+PyRun_SimpleFileExFlags(FILE *fp, const char *filename, int closeit,
+			PyCompilerFlags *flags)
+{
+	PyObject *m, *d, *v;
+	const char *ext;
+	int set_file_name = 0, ret;
+
+	m = PyImport_AddModule("__main__");
+	if (m == NULL)
+		return -1;
+	d = PyModule_GetDict(m);
+	if (PyDict_GetItemString(d, "__file__") == NULL) {
+		PyObject *f = PyString_FromString(filename);
+		if (f == NULL)
+			return -1;
+		if (PyDict_SetItemString(d, "__file__", f) < 0) {
+			Py_DECREF(f);
+			return -1;
+		}
+		set_file_name = 1;
+		Py_DECREF(f);
+	}
+	ext = filename + strlen(filename) - 4;
+	if (maybe_pyc_file(fp, filename, ext, closeit)) {
+		/* Try to run a pyc file. First, re-open in binary */
+		if (closeit)
+			fclose(fp);
+		if ((fp = fopen(filename, "rb")) == NULL) {
+			fprintf(stderr, "python: Can't reopen .pyc file\n");
+			ret = -1;
+			goto done;
+		}
+		/* Turn on optimization if a .pyo file is given */
+		if (strcmp(ext, ".pyo") == 0)
+			Py_OptimizeFlag = 1;
+		v = run_pyc_file(fp, filename, d, d, flags);
+	} else {
+		v = PyRun_FileExFlags(fp, filename, Py_file_input, d, d,
+				      closeit, flags);
+	}
+	if (v == NULL) {
+		PyErr_Print();
+		ret = -1;
+		goto done;
+	}
+	Py_DECREF(v);
+	if (Py_FlushLine())
+		PyErr_Clear();
+	ret = 0;
+  done:
+	if (set_file_name && PyDict_DelItemString(d, "__file__"))
+		PyErr_Clear();
+	return ret;
+}
+
+int
+PyRun_SimpleStringFlags(const char *command, PyCompilerFlags *flags)
+{
+	PyObject *m, *d, *v;
+	m = PyImport_AddModule("__main__");
+	if (m == NULL)
+		return -1;
+	d = PyModule_GetDict(m);
+	v = PyRun_StringFlags(command, Py_file_input, d, d, flags);
+	if (v == NULL) {
+		PyErr_Print();
+		return -1;
+	}
+	Py_DECREF(v);
+	if (Py_FlushLine())
+		PyErr_Clear();
+	return 0;
+}
+
+static int
+parse_syntax_error(PyObject *err, PyObject **message, const char **filename,
+		   int *lineno, int *offset, const char **text)
+{
+	long hold;
+	PyObject *v;
+
+	/* old style errors */
+	if (PyTuple_Check(err))
+		return PyArg_ParseTuple(err, "O(ziiz)", message, filename,
+					lineno, offset, text);
+
+	/* new style errors.  `err' is an instance */
+
+	if (! (v = PyObject_GetAttrString(err, "msg")))
+		goto finally;
+	*message = v;
+
+	if (!(v = PyObject_GetAttrString(err, "filename")))
+		goto finally;
+	if (v == Py_None)
+		*filename = NULL;
+	else if (! (*filename = PyString_AsString(v)))
+		goto finally;
+
+	Py_DECREF(v);
+	if (!(v = PyObject_GetAttrString(err, "lineno")))
+		goto finally;
+	hold = PyInt_AsLong(v);
+	Py_DECREF(v);
+	v = NULL;
+	if (hold < 0 && PyErr_Occurred())
+		goto finally;
+	*lineno = (int)hold;
+
+	if (!(v = PyObject_GetAttrString(err, "offset")))
+		goto finally;
+	if (v == Py_None) {
+		*offset = -1;
+		Py_DECREF(v);
+		v = NULL;
+	} else {
+		hold = PyInt_AsLong(v);
+		Py_DECREF(v);
+		v = NULL;
+		if (hold < 0 && PyErr_Occurred())
+			goto finally;
+		*offset = (int)hold;
+	}
+
+	if (!(v = PyObject_GetAttrString(err, "text")))
+		goto finally;
+	if (v == Py_None)
+		*text = NULL;
+	else if (! (*text = PyString_AsString(v)))
+		goto finally;
+	Py_DECREF(v);
+	return 1;
+
+finally:
+	Py_XDECREF(v);
+	return 0;
+}
+
+void
+PyErr_Print(void)
+{
+	PyErr_PrintEx(1);
+}
+
+static void
+print_error_text(PyObject *f, int offset, const char *text)
+{
+	char *nl;
+	if (offset >= 0) {
+		if (offset > 0 && offset == (int)strlen(text))
+			offset--;
+		for (;;) {
+			nl = strchr(text, '\n');
+			if (nl == NULL || nl-text >= offset)
+				break;
+			offset -= (int)(nl+1-text);
+			text = nl+1;
+		}
+		while (*text == ' ' || *text == '\t') {
+			text++;
+			offset--;
+		}
+	}
+	PyFile_WriteString("    ", f);
+	PyFile_WriteString(text, f);
+	if (*text == '\0' || text[strlen(text)-1] != '\n')
+		PyFile_WriteString("\n", f);
+	if (offset == -1)
+		return;
+	PyFile_WriteString("    ", f);
+	offset--;
+	while (offset > 0) {
+		PyFile_WriteString(" ", f);
+		offset--;
+	}
+	PyFile_WriteString("^\n", f);
+}
+
+static void
+handle_system_exit(void)
+{
+	PyObject *exception, *value, *tb;
+	int exitcode = 0;
+
+	if (Py_InspectFlag)
+		/* Don't exit if -i flag was given. This flag is set to 0
+		 * when entering interactive mode for inspecting. */
+		return;
+
+	PyErr_Fetch(&exception, &value, &tb);
+	if (Py_FlushLine())
+		PyErr_Clear();
+	fflush(stdout);
+	if (value == NULL || value == Py_None)
+		goto done;
+	if (PyExceptionInstance_Check(value)) {
+		/* The error code should be in the `code' attribute. */
+		PyObject *code = PyObject_GetAttrString(value, "code");
+		if (code) {
+			Py_DECREF(value);
+			value = code;
+			if (value == Py_None)
+				goto done;
+		}
+		/* If we failed to dig out the 'code' attribute,
+		   just let the else clause below print the error. */
+	}
+	if (PyInt_Check(value))
+		exitcode = (int)PyInt_AsLong(value);
+	else {
+		PyObject_Print(value, stderr, Py_PRINT_RAW);
+		PySys_WriteStderr("\n");
+		exitcode = 1;
+	}
+ done:
+	/* Restore and clear the exception info, in order to properly decref
+	 * the exception, value, and traceback.	 If we just exit instead,
+	 * these leak, which confuses PYTHONDUMPREFS output, and may prevent
+	 * some finalizers from running.
+	 */
+	PyErr_Restore(exception, value, tb);
+	PyErr_Clear();
+	Py_Exit(exitcode);
+	/* NOTREACHED */
+}
+
+void
+PyErr_PrintEx(int set_sys_last_vars)
+{
+	PyObject *exception, *v, *tb, *hook;
+
+	if (PyErr_ExceptionMatches(PyExc_SystemExit)) {
+		handle_system_exit();
+	}
+	PyErr_Fetch(&exception, &v, &tb);
+	if (exception == NULL)
+		return;
+	PyErr_NormalizeException(&exception, &v, &tb);
+	if (exception == NULL)
+		return;
+	/* Now we know v != NULL too */
+	if (set_sys_last_vars) {
+		PySys_SetObject("last_type", exception);
+		PySys_SetObject("last_value", v);
+		PySys_SetObject("last_traceback", tb);
+	}
+	hook = PySys_GetObject("excepthook");
+	if (hook) {
+		PyObject *args = PyTuple_Pack(3,
+		    exception, v, tb ? tb : Py_None);
+		PyObject *result = PyEval_CallObject(hook, args);
+		if (result == NULL) {
+			PyObject *exception2, *v2, *tb2;
+			if (PyErr_ExceptionMatches(PyExc_SystemExit)) {
+				handle_system_exit();
+			}
+			PyErr_Fetch(&exception2, &v2, &tb2);
+			PyErr_NormalizeException(&exception2, &v2, &tb2);
+			/* It should not be possible for exception2 or v2
+			   to be NULL. However PyErr_Display() can't
+			   tolerate NULLs, so just be safe. */
+			if (exception2 == NULL) {
+				exception2 = Py_None;
+				Py_INCREF(exception2);
+			}
+			if (v2 == NULL) {
+				v2 = Py_None;
+				Py_INCREF(v2);
+			}
+			if (Py_FlushLine())
+				PyErr_Clear();
+			fflush(stdout);
+			PySys_WriteStderr("Error in sys.excepthook:\n");
+			PyErr_Display(exception2, v2, tb2);
+			PySys_WriteStderr("\nOriginal exception was:\n");
+			PyErr_Display(exception, v, tb);
+			Py_DECREF(exception2);
+			Py_DECREF(v2);
+			Py_XDECREF(tb2);
+		}
+		Py_XDECREF(result);
+		Py_XDECREF(args);
+	} else {
+		PySys_WriteStderr("sys.excepthook is missing\n");
+		PyErr_Display(exception, v, tb);
+	}
+	Py_XDECREF(exception);
+	Py_XDECREF(v);
+	Py_XDECREF(tb);
+}
+
+void
+PyErr_Display(PyObject *exception, PyObject *value, PyObject *tb)
+{
+	int err = 0;
+	PyObject *f = PySys_GetObject("stderr");
+	Py_INCREF(value);
+	if (f == NULL)
+		fprintf(stderr, "lost sys.stderr\n");
+	else {
+		if (Py_FlushLine())
+			PyErr_Clear();
+		fflush(stdout);
+		if (tb && tb != Py_None)
+			err = PyTraceBack_Print(tb, f);
+		if (err == 0 &&
+		    PyObject_HasAttrString(value, "print_file_and_line"))
+		{
+			PyObject *message;
+			const char *filename, *text;
+			int lineno, offset;
+			if (!parse_syntax_error(value, &message, &filename,
+						&lineno, &offset, &text))
+				PyErr_Clear();
+			else {
+				char buf[10];
+				PyFile_WriteString("  File \"", f);
+				if (filename == NULL)
+					PyFile_WriteString("<string>", f);
+				else
+					PyFile_WriteString(filename, f);
+				PyFile_WriteString("\", line ", f);
+				PyOS_snprintf(buf, sizeof(buf), "%d", lineno);
+				PyFile_WriteString(buf, f);
+				PyFile_WriteString("\n", f);
+				if (text != NULL)
+					print_error_text(f, offset, text);
+				Py_DECREF(value);
+				value = message;
+				/* Can't be bothered to check all those
+				   PyFile_WriteString() calls */
+				if (PyErr_Occurred())
+					err = -1;
+			}
+		}
+		if (err) {
+			/* Don't do anything else */
+		}
+		else if (PyExceptionClass_Check(exception)) {
+			PyObject* moduleName;
+			char* className = PyExceptionClass_Name(exception);
+			if (className != NULL) {
+				char *dot = strrchr(className, '.');
+				if (dot != NULL)
+					className = dot+1;
+			}
+
+			moduleName = PyObject_GetAttrString(exception, "__module__");
+			if (moduleName == NULL)
+				err = PyFile_WriteString("<unknown>", f);
+			else {
+				char* modstr = PyString_AsString(moduleName);
+				if (modstr && strcmp(modstr, "exceptions"))
+				{
+					err = PyFile_WriteString(modstr, f);
+					err += PyFile_WriteString(".", f);
+				}
+				Py_DECREF(moduleName);
+			}
+			if (err == 0) {
+				if (className == NULL)
+				      err = PyFile_WriteString("<unknown>", f);
+				else
+				      err = PyFile_WriteString(className, f);
+			}
+		}
+		else
+			err = PyFile_WriteObject(exception, f, Py_PRINT_RAW);
+		if (err == 0 && (value != Py_None)) {
+			PyObject *s = PyObject_Str(value);
+			/* only print colon if the str() of the
+			   object is not the empty string
+			*/
+			if (s == NULL)
+				err = -1;
+			else if (!PyString_Check(s) ||
+				 PyString_GET_SIZE(s) != 0)
+				err = PyFile_WriteString(": ", f);
+			if (err == 0)
+			  err = PyFile_WriteObject(s, f, Py_PRINT_RAW);
+			Py_XDECREF(s);
+		}
+		/* try to write a newline in any case */
+		err += PyFile_WriteString("\n", f);
+	}
+	Py_DECREF(value);
+	/* If an error happened here, don't show it.
+	   XXX This is wrong, but too many callers rely on this behavior. */
+	if (err != 0)
+		PyErr_Clear();
+}
+
+PyObject *
+PyRun_StringFlags(const char *str, int start, PyObject *globals,
+		  PyObject *locals, PyCompilerFlags *flags)
+{
+	PyObject *ret = NULL;
+	mod_ty mod;
+	PyArena *arena = PyArena_New();
+	if (arena == NULL)
+		return NULL;
+	
+	mod = PyParser_ASTFromString(str, "<string>", start, flags, arena);
+	if (mod != NULL)
+		ret = run_mod(mod, "<string>", globals, locals, flags, arena);
+	PyArena_Free(arena);
+	return ret;
+}
+
+PyObject *
+PyRun_FileExFlags(FILE *fp, const char *filename, int start, PyObject *globals,
+		  PyObject *locals, int closeit, PyCompilerFlags *flags)
+{
+	PyObject *ret;
+	mod_ty mod;
+	PyArena *arena = PyArena_New();
+	if (arena == NULL)
+		return NULL;
+	
+	mod = PyParser_ASTFromFile(fp, filename, start, 0, 0,
+				   flags, NULL, arena);
+	if (closeit)
+		fclose(fp);
+	if (mod == NULL) {
+		PyArena_Free(arena);
+		return NULL;
+	}
+	ret = run_mod(mod, filename, globals, locals, flags, arena);
+	PyArena_Free(arena);
+	return ret;
+}
+
+static PyObject *
+run_mod(mod_ty mod, const char *filename, PyObject *globals, PyObject *locals,
+	 PyCompilerFlags *flags, PyArena *arena)
+{
+	PyCodeObject *co;
+	PyObject *v;
+	co = PyAST_Compile(mod, filename, flags, arena);
+	if (co == NULL)
+		return NULL;
+	v = PyEval_EvalCode(co, globals, locals);
+	Py_DECREF(co);
+	return v;
+}
+
+static PyObject *
+run_pyc_file(FILE *fp, const char *filename, PyObject *globals,
+	     PyObject *locals, PyCompilerFlags *flags)
+{
+	PyCodeObject *co;
+	PyObject *v;
+	long magic;
+	long PyImport_GetMagicNumber(void);
+
+	magic = PyMarshal_ReadLongFromFile(fp);
+	if (magic != PyImport_GetMagicNumber()) {
+		PyErr_SetString(PyExc_RuntimeError,
+			   "Bad magic number in .pyc file");
+		return NULL;
+	}
+	(void) PyMarshal_ReadLongFromFile(fp);
+	v = PyMarshal_ReadLastObjectFromFile(fp);
+	fclose(fp);
+	if (v == NULL || !PyCode_Check(v)) {
+		Py_XDECREF(v);
+		PyErr_SetString(PyExc_RuntimeError,
+			   "Bad code object in .pyc file");
+		return NULL;
+	}
+	co = (PyCodeObject *)v;
+	v = PyEval_EvalCode(co, globals, locals);
+	if (v && flags)
+		flags->cf_flags |= (co->co_flags & PyCF_MASK);
+	Py_DECREF(co);
+	return v;
+}
+
+PyObject *
+Py_CompileStringFlags(const char *str, const char *filename, int start,
+		      PyCompilerFlags *flags)
+{
+	PyCodeObject *co;
+	mod_ty mod;
+	PyArena *arena = PyArena_New();
+	if (arena == NULL)
+		return NULL;
+
+	mod = PyParser_ASTFromString(str, filename, start, flags, arena);
+	if (mod == NULL) {
+		PyArena_Free(arena);
+		return NULL;
+	}
+	if (flags && (flags->cf_flags & PyCF_ONLY_AST)) {
+		PyObject *result = PyAST_mod2obj(mod);
+		PyArena_Free(arena);
+		return result;
+	}
+	co = PyAST_Compile(mod, filename, flags, arena);
+	PyArena_Free(arena);
+	return (PyObject *)co;
+}
+
+struct symtable *
+Py_SymtableString(const char *str, const char *filename, int start)
+{
+	struct symtable *st;
+	mod_ty mod;
+	PyCompilerFlags flags;
+	PyArena *arena = PyArena_New();
+	if (arena == NULL)
+		return NULL;
+
+	flags.cf_flags = 0;
+
+	mod = PyParser_ASTFromString(str, filename, start, &flags, arena);
+	if (mod == NULL) {
+		PyArena_Free(arena);
+		return NULL;
+	}
+	st = PySymtable_Build(mod, filename, 0);
+	PyArena_Free(arena);
+	return st;
+}
+
+/* Preferred access to parser is through AST. */
+mod_ty
+PyParser_ASTFromString(const char *s, const char *filename, int start,
+		       PyCompilerFlags *flags, PyArena *arena)
+{
+	mod_ty mod;
+	PyCompilerFlags localflags;
+	perrdetail err;
+	int iflags = PARSER_FLAGS(flags);
+
+	node *n = PyParser_ParseStringFlagsFilenameEx(s, filename,
+					&_PyParser_Grammar, start, &err,
+					&iflags);
+	if (flags == NULL) {
+		localflags.cf_flags = 0;
+		flags = &localflags;
+	}
+	if (n) {
+		flags->cf_flags |= iflags & PyCF_MASK;
+		mod = PyAST_FromNode(n, flags, filename, arena);
+		PyNode_Free(n);
+		return mod;
+	}
+	else {
+		err_input(&err);
+		return NULL;
+	}
+}
+
+mod_ty
+PyParser_ASTFromFile(FILE *fp, const char *filename, int start, char *ps1,
+		     char *ps2, PyCompilerFlags *flags, int *errcode,
+		     PyArena *arena)
+{
+	mod_ty mod;
+	PyCompilerFlags localflags;
+	perrdetail err;
+	int iflags = PARSER_FLAGS(flags);
+
+	node *n = PyParser_ParseFileFlagsEx(fp, filename, &_PyParser_Grammar,
+				start, ps1, ps2, &err, &iflags);
+	if (flags == NULL) {
+		localflags.cf_flags = 0;
+		flags = &localflags;
+	}
+	if (n) {
+		flags->cf_flags |= iflags & PyCF_MASK;
+		mod = PyAST_FromNode(n, flags, filename, arena);
+		PyNode_Free(n);
+		return mod;
+	}
+	else {
+		err_input(&err);
+		if (errcode)
+			*errcode = err.error;
+		return NULL;
+	}
+}
+
+/* Simplified interface to parsefile -- return node or set exception */
+
+node *
+PyParser_SimpleParseFileFlags(FILE *fp, const char *filename, int start, int flags)
+{
+	perrdetail err;
+	node *n = PyParser_ParseFileFlags(fp, filename, &_PyParser_Grammar,
+					  start, NULL, NULL, &err, flags);
+	if (n == NULL)
+		err_input(&err);
+
+	return n;
+}
+
+/* Simplified interface to parsestring -- return node or set exception */
+
+node *
+PyParser_SimpleParseStringFlags(const char *str, int start, int flags)
+{
+	perrdetail err;
+	node *n = PyParser_ParseStringFlags(str, &_PyParser_Grammar,
+					    start, &err, flags);
+	if (n == NULL)
+		err_input(&err);
+	return n;
+}
+
+node *
+PyParser_SimpleParseStringFlagsFilename(const char *str, const char *filename,
+					int start, int flags)
+{
+	perrdetail err;
+	node *n = PyParser_ParseStringFlagsFilename(str, filename,
+				&_PyParser_Grammar, start, &err, flags);
+	if (n == NULL)
+		err_input(&err);
+	return n;
+}
+
+node *
+PyParser_SimpleParseStringFilename(const char *str, const char *filename, int start)
+{
+	return PyParser_SimpleParseStringFlagsFilename(str, filename, start, 0);
+}
+
+/* May want to move a more generalized form of this to parsetok.c or
+   even parser modules. */
+
+void
+PyParser_SetError(perrdetail *err)
+{
+	err_input(err);
+}
+
+/* Set the error appropriate to the given input error code (see errcode.h) */
+
+static void
+err_input(perrdetail *err)
+{
+	PyObject *v, *w, *errtype;
+	PyObject* u = NULL;
+	char *msg = NULL;
+	errtype = PyExc_SyntaxError;
+	switch (err->error) {
+	case E_SYNTAX:
+		errtype = PyExc_IndentationError;
+		if (err->expected == INDENT)
+			msg = "expected an indented block";
+		else if (err->token == INDENT)
+			msg = "unexpected indent";
+		else if (err->token == DEDENT)
+			msg = "unexpected unindent";
+		else {
+			errtype = PyExc_SyntaxError;
+			msg = "invalid syntax";
+		}
+		break;
+	case E_TOKEN:
+		msg = "invalid token";
+		break;
+	case E_EOFS:
+		msg = "EOF while scanning triple-quoted string literal";
+		break;
+	case E_EOLS:
+		msg = "EOL while scanning string literal";
+		break;
+	case E_INTR:
+		if (!PyErr_Occurred())
+			PyErr_SetNone(PyExc_KeyboardInterrupt);
+		goto cleanup;
+	case E_NOMEM:
+		PyErr_NoMemory();
+		goto cleanup;
+	case E_EOF:
+		msg = "unexpected EOF while parsing";
+		break;
+	case E_TABSPACE:
+		errtype = PyExc_TabError;
+		msg = "inconsistent use of tabs and spaces in indentation";
+		break;
+	case E_OVERFLOW:
+		msg = "expression too long";
+		break;
+	case E_DEDENT:
+		errtype = PyExc_IndentationError;
+		msg = "unindent does not match any outer indentation level";
+		break;
+	case E_TOODEEP:
+		errtype = PyExc_IndentationError;
+		msg = "too many levels of indentation";
+		break;
+	case E_DECODE: {
+		PyObject *type, *value, *tb;
+		PyErr_Fetch(&type, &value, &tb);
+		if (value != NULL) {
+			u = PyObject_Str(value);
+			if (u != NULL) {
+				msg = PyString_AsString(u);
+			}
+		}
+		if (msg == NULL)
+			msg = "unknown decode error";
+		Py_XDECREF(type);
+		Py_XDECREF(value);
+		Py_XDECREF(tb);
+		break;
+	}
+	case E_LINECONT:
+		msg = "unexpected character after line continuation character";
+		break;
+	default:
+		fprintf(stderr, "error=%d\n", err->error);
+		msg = "unknown parsing error";
+		break;
+	}
+	v = Py_BuildValue("(ziiz)", err->filename,
+			  err->lineno, err->offset, err->text);
+	w = NULL;
+	if (v != NULL)
+		w = Py_BuildValue("(sO)", msg, v);
+	Py_XDECREF(u);
+	Py_XDECREF(v);
+	PyErr_SetObject(errtype, w);
+	Py_XDECREF(w);
+cleanup:
+	if (err->text != NULL) {
+		PyObject_FREE(err->text);
+		err->text = NULL;
+	}
+}
+
+/* Print fatal error message and abort */
+
+void
+Py_FatalError(const char *msg)
+{
+	fprintf(stderr, "Fatal Python error: %s\n", msg);
+#ifdef MS_WINDOWS
+	OutputDebugString("Fatal Python error: ");
+	OutputDebugString(msg);
+	OutputDebugString("\n");
+#ifdef _DEBUG
+	DebugBreak();
+#endif
+#endif /* MS_WINDOWS */
+	abort();
+}
+
+/* Clean up and exit */
+
+#ifdef WITH_THREAD
+#include "pythread.h"
+#endif
+
+#define NEXITFUNCS 32
+static void (*exitfuncs[NEXITFUNCS])(void);
+static int nexitfuncs = 0;
+
+int Py_AtExit(void (*func)(void))
+{
+	if (nexitfuncs >= NEXITFUNCS)
+		return -1;
+	exitfuncs[nexitfuncs++] = func;
+	return 0;
+}
+
+static void
+call_sys_exitfunc(void)
+{
+	PyObject *exitfunc = PySys_GetObject("exitfunc");
+
+	if (exitfunc) {
+		PyObject *res;
+		Py_INCREF(exitfunc);
+		PySys_SetObject("exitfunc", (PyObject *)NULL);
+		res = PyEval_CallObject(exitfunc, (PyObject *)NULL);
+		if (res == NULL) {
+			if (!PyErr_ExceptionMatches(PyExc_SystemExit)) {
+				PySys_WriteStderr("Error in sys.exitfunc:\n");
+			}
+			PyErr_Print();
+		}
+		Py_DECREF(exitfunc);
+	}
+
+	if (Py_FlushLine())
+		PyErr_Clear();
+}
+
+static void
+call_ll_exitfuncs(void)
+{
+	while (nexitfuncs > 0)
+		(*exitfuncs[--nexitfuncs])();
+
+	fflush(stdout);
+	fflush(stderr);
+}
+
+void
+Py_Exit(int sts)
+{
+	Py_Finalize();
+
+	exit(sts);
+}
+
+static void
+initsigs(void)
+{
+#ifdef SIGPIPE
+	PyOS_setsig(SIGPIPE, SIG_IGN);
+#endif
+#ifdef SIGXFZ
+	PyOS_setsig(SIGXFZ, SIG_IGN);
+#endif
+#ifdef SIGXFSZ
+	PyOS_setsig(SIGXFSZ, SIG_IGN);
+#endif
+	PyOS_InitInterrupts(); /* May imply initsignal() */
+}
+
+
+/*
+ * The file descriptor fd is considered ``interactive'' if either
+ *   a) isatty(fd) is TRUE, or
+ *   b) the -i flag was given, and the filename associated with
+ *      the descriptor is NULL or "<stdin>" or "???".
+ */
+int
+Py_FdIsInteractive(FILE *fp, const char *filename)
+{
+	if (isatty((int)fileno(fp)))
+		return 1;
+	if (!Py_InteractiveFlag)
+		return 0;
+	return (filename == NULL) ||
+	       (strcmp(filename, "<stdin>") == 0) ||
+	       (strcmp(filename, "???") == 0);
+}
+
+
+#if defined(USE_STACKCHECK)
+#if defined(WIN32) && defined(_MSC_VER)
+
+/* Stack checking for Microsoft C */
+
+#include <malloc.h>
+#include <excpt.h>
+
+/*
+ * Return non-zero when we run out of memory on the stack; zero otherwise.
+ */
+int
+PyOS_CheckStack(void)
+{
+	__try {
+		/* alloca throws a stack overflow exception if there's
+		   not enough space left on the stack */
+		alloca(PYOS_STACK_MARGIN * sizeof(void*));
+		return 0;
+	} __except (GetExceptionCode() == STATUS_STACK_OVERFLOW ?
+		        EXCEPTION_EXECUTE_HANDLER : 
+		        EXCEPTION_CONTINUE_SEARCH) {
+		int errcode = _resetstkoflw();
+		if (errcode == 0)
+		{
+			Py_FatalError("Could not reset the stack!");
+		}
+	}
+	return 1;
+}
+
+#endif /* WIN32 && _MSC_VER */
+
+/* Alternate implementations can be added here... */
+
+#endif /* USE_STACKCHECK */
+
+
+/* Wrappers around sigaction() or signal(). */
+
+PyOS_sighandler_t
+PyOS_getsig(int sig)
+{
+#ifdef HAVE_SIGACTION
+	struct sigaction context;
+	if (sigaction(sig, NULL, &context) == -1)
+		return SIG_ERR;
+	return context.sa_handler;
+#else
+	PyOS_sighandler_t handler;
+/* Special signal handling for the secure CRT in Visual Studio 2005 */
+#if defined(_MSC_VER) && _MSC_VER >= 1400
+	switch (sig) {
+	/* Only these signals are valid */
+	case SIGINT:
+	case SIGILL:
+	case SIGFPE:
+	case SIGSEGV:
+	case SIGTERM:
+	case SIGBREAK:
+	case SIGABRT:
+		break;
+	/* Don't call signal() with other values or it will assert */
+	default:
+		return SIG_ERR;
+	}
+#endif /* _MSC_VER && _MSC_VER >= 1400 */
+	handler = signal(sig, SIG_IGN);
+	if (handler != SIG_ERR)
+		signal(sig, handler);
+	return handler;
+#endif
+}
+
+PyOS_sighandler_t
+PyOS_setsig(int sig, PyOS_sighandler_t handler)
+{
+#ifdef HAVE_SIGACTION
+	struct sigaction context, ocontext;
+	context.sa_handler = handler;
+	sigemptyset(&context.sa_mask);
+	context.sa_flags = 0;
+	if (sigaction(sig, &context, &ocontext) == -1)
+		return SIG_ERR;
+	return ocontext.sa_handler;
+#else
+	PyOS_sighandler_t oldhandler;
+	oldhandler = signal(sig, handler);
+#ifdef HAVE_SIGINTERRUPT
+	siginterrupt(sig, 1);
+#endif
+	return oldhandler;
+#endif
+}
+
+/* Deprecated C API functions still provided for binary compatiblity */
+
+#undef PyParser_SimpleParseFile
+PyAPI_FUNC(node *)
+PyParser_SimpleParseFile(FILE *fp, const char *filename, int start)
+{
+	return PyParser_SimpleParseFileFlags(fp, filename, start, 0);
+}
+
+#undef PyParser_SimpleParseString
+PyAPI_FUNC(node *)
+PyParser_SimpleParseString(const char *str, int start)
+{
+	return PyParser_SimpleParseStringFlags(str, start, 0);
+}
+
+#undef PyRun_AnyFile
+PyAPI_FUNC(int)
+PyRun_AnyFile(FILE *fp, const char *name)
+{
+	return PyRun_AnyFileExFlags(fp, name, 0, NULL);
+}
+
+#undef PyRun_AnyFileEx
+PyAPI_FUNC(int)
+PyRun_AnyFileEx(FILE *fp, const char *name, int closeit)
+{
+	return PyRun_AnyFileExFlags(fp, name, closeit, NULL);
+}
+
+#undef PyRun_AnyFileFlags
+PyAPI_FUNC(int)
+PyRun_AnyFileFlags(FILE *fp, const char *name, PyCompilerFlags *flags)
+{
+	return PyRun_AnyFileExFlags(fp, name, 0, flags);
+}
+
+#undef PyRun_File
+PyAPI_FUNC(PyObject *)
+PyRun_File(FILE *fp, const char *p, int s, PyObject *g, PyObject *l)
+{
+	return PyRun_FileExFlags(fp, p, s, g, l, 0, NULL);
+}
+
+#undef PyRun_FileEx
+PyAPI_FUNC(PyObject *)
+PyRun_FileEx(FILE *fp, const char *p, int s, PyObject *g, PyObject *l, int c)
+{
+	return PyRun_FileExFlags(fp, p, s, g, l, c, NULL);
+}
+
+#undef PyRun_FileFlags
+PyAPI_FUNC(PyObject *)
+PyRun_FileFlags(FILE *fp, const char *p, int s, PyObject *g, PyObject *l,
+		PyCompilerFlags *flags)
+{
+	return PyRun_FileExFlags(fp, p, s, g, l, 0, flags);
+}
+
+#undef PyRun_SimpleFile
+PyAPI_FUNC(int)
+PyRun_SimpleFile(FILE *f, const char *p)
+{
+	return PyRun_SimpleFileExFlags(f, p, 0, NULL);
+}
+
+#undef PyRun_SimpleFileEx
+PyAPI_FUNC(int)
+PyRun_SimpleFileEx(FILE *f, const char *p, int c)
+{
+	return PyRun_SimpleFileExFlags(f, p, c, NULL);
+}
+
+
+#undef PyRun_String
+PyAPI_FUNC(PyObject *)
+PyRun_String(const char *str, int s, PyObject *g, PyObject *l)
+{
+	return PyRun_StringFlags(str, s, g, l, NULL);
+}
+
+#undef PyRun_SimpleString
+PyAPI_FUNC(int)
+PyRun_SimpleString(const char *s)
+{
+	return PyRun_SimpleStringFlags(s, NULL);
+}
+
+#undef Py_CompileString
+PyAPI_FUNC(PyObject *)
+Py_CompileString(const char *str, const char *p, int s)
+{
+	return Py_CompileStringFlags(str, p, s, NULL);
+}
+
+#undef PyRun_InteractiveOne
+PyAPI_FUNC(int)
+PyRun_InteractiveOne(FILE *f, const char *p)
+{
+	return PyRun_InteractiveOneFlags(f, p, NULL);
+}
+
+#undef PyRun_InteractiveLoop
+PyAPI_FUNC(int)
+PyRun_InteractiveLoop(FILE *f, const char *p)
+{
+	return PyRun_InteractiveLoopFlags(f, p, NULL);
+}
+
+#ifdef __cplusplus
+}
+#endif
+