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Allow sys.excepthook and sys.exitfunc to quietly exit with a sys.exit(). 

sys.exitfunc gets the last word on the exit status of the program.
This commit is contained in:
Ka-Ping Yee 2001-03-23 15:36:41 +00:00
parent a9c6c8dab5
commit 26fabb0016
1 changed files with 37 additions and 32 deletions
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69
Python/pythonrun.c
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@ -798,6 +798,35 @@ print_error_text(PyObject *f, int offset, char *text)
PyFile_WriteString("^\n", f);
}
void
PyRun_HandleSystemExit(PyObject* value)
{
if (Py_FlushLine())
PyErr_Clear();
fflush(stdout);
if (value == NULL || value == Py_None)
Py_Exit(0);
if (PyInstance_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)
Py_Exit(0);
}
/* If we failed to dig out the 'code' attribute,
just let the else clause below print the error. */
}
if (PyInt_Check(value))
Py_Exit((int)PyInt_AsLong(value));
else {
PyObject_Print(value, stderr, Py_PRINT_RAW);
PySys_WriteStderr("\n");
Py_Exit(1);
}
}
void
PyErr_PrintEx(int set_sys_last_vars)
{
@ -809,35 +838,7 @@ PyErr_PrintEx(int set_sys_last_vars)
return;
if (PyErr_GivenExceptionMatches(exception, PyExc_SystemExit)) {
if (Py_FlushLine())
PyErr_Clear();
fflush(stdout);
if (v == NULL || v == Py_None)
Py_Exit(0);
if (PyInstance_Check(v)) {
/* we expect the error code to be store in the
`code' attribute
*/
PyObject *code = PyObject_GetAttrString(v, "code");
if (code) {
Py_DECREF(v);
v = code;
if (v == Py_None)
Py_Exit(0);
}
/* if we failed to dig out the "code" attribute,
then just let the else clause below print the
error
*/
}
if (PyInt_Check(v))
Py_Exit((int)PyInt_AsLong(v));
else {
/* OK to use real stderr here */
PyObject_Print(v, stderr, Py_PRINT_RAW);
fprintf(stderr, "\n");
Py_Exit(1);
}
PyRun_HandleSystemExit(v);
}
if (set_sys_last_vars) {
PySys_SetObject("last_type", exception);
@ -853,6 +854,10 @@ PyErr_PrintEx(int set_sys_last_vars)
PyObject *exception2, *v2, *tb2;
PyErr_Fetch(&exception2, &v2, &tb2);
PyErr_NormalizeException(&exception2, &v2, &tb2);
if (PyErr_GivenExceptionMatches(
exception2, PyExc_SystemExit)) {
PyRun_HandleSystemExit(v2);
}
if (Py_FlushLine())
PyErr_Clear();
fflush(stdout);
@ -1254,11 +1259,11 @@ call_sys_exitfunc(void)
PyObject *res, *f;
Py_INCREF(exitfunc);
PySys_SetObject("exitfunc", (PyObject *)NULL);
f = PySys_GetObject("stderr");
res = PyEval_CallObject(exitfunc, (PyObject *)NULL);
if (res == NULL) {
if (f)
PyFile_WriteString("Error in sys.exitfunc:\n", f);
if (!PyErr_ExceptionMatches(PyExc_SystemExit)) {
PySys_WriteStderr("Error in sys.exitfunc:\n");
}
PyErr_Print();
}
Py_DECREF(exitfunc);