New submission from Christian Heimes:
Here is another patch related to stdio from me. It creates and sets up a
very dumb and easy stderr writer until the new io infrastructure is
initialized. It makes debugging problems in the init phase much easier.
----------
components: Interpreter Core
files: py3k_preliminary_stderr.patch
messages: 56880
nosy: tiran
severity: normal
status: open
title: Preliminary stderr patch
type: rfe
versions: Python 3.0
Added file: http://bugs.python.org/file8644/py3k_preliminary_stderr.patch
__________________________________
Tracker <[EMAIL PROTECTED]>
<http://bugs.python.org/issue1352>
__________________________________
Index: Python/pythonrun.c
===================================================================
--- Python/pythonrun.c (revision 58695)
+++ Python/pythonrun.c (working copy)
@@ -151,7 +151,7 @@
{
PyInterpreterState *interp;
PyThreadState *tstate;
- PyObject *bimod, *sysmod;
+ PyObject *bimod, *sysmod, *stderr;
char *p;
#if defined(HAVE_LANGINFO_H) && defined(CODESET)
char *codeset;
@@ -228,6 +228,13 @@
PyDict_SetItemString(interp->sysdict, "modules",
interp->modules);
+ /* set up a dump stderr printer until we have enough infrastructure
+ for the io module in place */
+ stderr = _PyStderrPrinter_New();
+ if (stderr == NULL)
+ Py_FatalError("Py_Initialize: can't set preliminary stderr");
+ PySys_SetObject("stderr", stderr);
+
_PyImport_Init();
/* initialize builtin exceptions */
@@ -736,6 +743,9 @@
PySys_SetObject("stdout", std);
Py_DECREF(std);
+ /* Remove old stderr printer */
+ PySys_SetObject("stderr", NULL);
+
/* Set sys.stderr */
if (!(std = PyFile_FromFd(fileno(stderr), "<stderr>", "w", -1,
NULL, "\n"))) {
Index: Include/fileobject.h
===================================================================
--- Include/fileobject.h (revision 58695)
+++ Include/fileobject.h (working copy)
@@ -8,6 +8,13 @@
#define PY_STDIOTEXTMODE "b"
+typedef struct {
+ PyObject_HEAD
+} _PyStderrPrinter_Object;
+
+PyAPI_DATA(PyTypeObject) _PyStderrPrinter_Type;
+PyAPI_FUNC(PyObject *) _PyStderrPrinter_New(void);
+
PyAPI_FUNC(PyObject *) PyFile_FromFd(int, char *, char *, int, char *, char *);
PyAPI_FUNC(PyObject *) PyFile_GetLine(PyObject *, int);
PyAPI_FUNC(int) PyFile_WriteObject(PyObject *, PyObject *, int);
Index: Objects/object.c
===================================================================
--- Objects/object.c (revision 58695)
+++ Objects/object.c (working copy)
@@ -1595,6 +1595,9 @@
if (PyType_Ready(&PyCode_Type) < 0)
Py_FatalError("Can't initialize 'code'");
+
+ if (PyType_Ready(&_PyStderrPrinter_Type) < 0)
+ Py_FatalError("Can't initialize StderrPrinter");
}
Index: Objects/fileobject.c
===================================================================
--- Objects/fileobject.c (revision 58695)
+++ Objects/fileobject.c (working copy)
@@ -325,6 +325,92 @@
return buf;
}
+/* ************************* stderr printer ******************************** */
+
+PyObject *
+_PyStderrPrinter_New(void)
+{
+ PyObject *self;
+ self = (PyObject*)PyObject_New(_PyStderrPrinter_Object,
+ &_PyStderrPrinter_Type);
+ return self;
+}
+
+PyDoc_STRVAR(stderrprinter_write_doc,
+"write to stderr");
+
+PyObject *
+stderrprinter_write(PyObject *self, PyObject *args)
+{
+ PyObject *d;
+ char *c = NULL;
+
+ if (!PyArg_ParseTuple(args, "O:write", &d))
+ return NULL;
+
+ if (PyBytes_Check(d)) {
+ c = PyBytes_AS_STRING(d);
+ }
+ else if (PyString_Check(d)) {
+ c = PyString_AS_STRING(d);
+ } else if (PyUnicode_Check(d)) {
+ c = PyUnicode_AsString(d);
+ } else {
+ PyErr_SetString(PyExc_TypeError, "invalid type");
+ return NULL;
+ }
+
+ if (c == NULL) {
+ PyErr_SetString(PyExc_ValueError, "no string");
+ return NULL;
+ }
+
+ fprintf(stderr, "%s", c);
+ fflush(stderr);
+
+ Py_RETURN_NONE;
+}
+
+static PyMethodDef stderrprinter_methods[] = {
+ {"write", (PyCFunction)stderrprinter_write, METH_VARARGS,
+ stderrprinter_write_doc},
+ {NULL, NULL} /* sentinel */
+};
+
+PyTypeObject _PyStderrPrinter_Type = {
+ PyVarObject_HEAD_INIT(NULL, 0)
+ "stderrprinter", /* tp_name */
+ 0, /* tp_basicsize */
+ 0, /* tp_itemsize */
+ /* methods */
+ 0, /* tp_dealloc */
+ 0, /* tp_print */
+ 0, /* tp_getattr */
+ 0, /* tp_setattr */
+ 0, /* tp_compare */
+ 0, /* tp_repr */
+ 0, /* tp_as_number */
+ 0, /* tp_as_sequence */
+ 0, /* tp_as_mapping */
+ 0, /* tp_hash */
+ 0, /* tp_call */
+ 0, /* tp_str */
+ PyObject_GenericGetAttr, /* tp_getattro */
+ 0, /* tp_setattro */
+ 0, /* tp_as_buffer */
+ Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,/* tp_flags */
+ 0, /* tp_doc */
+ 0, /* tp_traverse */
+ 0, /* tp_clear */
+ 0, /* tp_richcompare */
+ 0, /* tp_weaklistoffset */
+ 0, /* tp_iter */
+ 0, /* tp_iternext */
+ stderrprinter_methods, /* tp_methods */
+ 0,
+};
+
+
#ifdef __cplusplus
}
#endif
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