Benjamin Peterson
parent
9bab65c259
commit
e65282114e
|
|
@ -19,7 +19,7 @@ typedef struct _traceback {
|
|||
|
||||
PyAPI_FUNC(int) PyTraceBack_Here(struct _frame *);
|
||||
PyAPI_FUNC(int) PyTraceBack_Print(PyObject *, PyObject *);
|
||||
PyAPI_FUNC(int) Py_DisplaySourceLine(PyObject *, const char *, int);
|
||||
PyAPI_FUNC(int) Py_DisplaySourceLine(PyObject *, const char *, int, int);
|
||||
|
||||
/* Reveal traceback type so we can typecheck traceback objects */
|
||||
PyAPI_DATA(PyTypeObject) PyTraceBack_Type;
|
||||
|
|
|
|||
|
|
@ -278,6 +278,30 @@ class TestContext(unittest.TestCase):
|
|||
else:
|
||||
self.fail("No exception raised")
|
||||
|
||||
def test_cycle_broken(self):
|
||||
# Self-cycles (when re-raising a caught exception) are broken
|
||||
try:
|
||||
try:
|
||||
1/0
|
||||
except ZeroDivisionError as e:
|
||||
raise e
|
||||
except ZeroDivisionError as e:
|
||||
self.failUnless(e.__context__ is None, e.__context__)
|
||||
|
||||
def test_reraise_cycle_broken(self):
|
||||
# Non-trivial context cycles (through re-raising a previous exception)
|
||||
# are broken too.
|
||||
try:
|
||||
try:
|
||||
xyzzy
|
||||
except NameError as a:
|
||||
try:
|
||||
1/0
|
||||
except ZeroDivisionError:
|
||||
raise a
|
||||
except NameError as e:
|
||||
self.failUnless(e.__context__.__context__ is None)
|
||||
|
||||
|
||||
class TestRemovedFunctionality(unittest.TestCase):
|
||||
def test_tuples(self):
|
||||
|
|
|
|||
|
|
@ -1,10 +1,11 @@
|
|||
"""Test cases for traceback module"""
|
||||
|
||||
from _testcapi import traceback_print
|
||||
from _testcapi import traceback_print, exception_print
|
||||
from io import StringIO
|
||||
import sys
|
||||
import unittest
|
||||
from test.support import run_unittest, is_jython, Error
|
||||
import re
|
||||
from test.support import run_unittest, is_jython, Error, captured_output
|
||||
|
||||
import traceback
|
||||
|
||||
|
|
@ -19,7 +20,7 @@ else:
|
|||
raise Error("unable to create test traceback string")
|
||||
|
||||
|
||||
class TracebackCases(unittest.TestCase):
|
||||
class SyntaxTracebackCases(unittest.TestCase):
|
||||
# For now, a very minimal set of tests. I want to be sure that
|
||||
# formatting of SyntaxErrors works based on changes for 2.1.
|
||||
|
||||
|
|
@ -102,9 +103,132 @@ class TracebackFormatTests(unittest.TestCase):
|
|||
self.assert_(source_line.startswith(' raise'))
|
||||
|
||||
|
||||
def test_main():
|
||||
run_unittest(TracebackCases, TracebackFormatTests)
|
||||
cause_message = (
|
||||
"\nThe above exception was the direct cause "
|
||||
"of the following exception:\n\n")
|
||||
|
||||
context_message = (
|
||||
"\nDuring handling of the above exception, "
|
||||
"another exception occurred:\n\n")
|
||||
|
||||
boundaries = re.compile(
|
||||
'(%s|%s)' % (re.escape(cause_message), re.escape(context_message)))
|
||||
|
||||
|
||||
class BaseExceptionReportingTests:
|
||||
|
||||
def get_exception(self, exception_or_callable):
|
||||
if isinstance(exception_or_callable, Exception):
|
||||
return exception_or_callable
|
||||
try:
|
||||
exception_or_callable()
|
||||
except Exception as e:
|
||||
return e
|
||||
|
||||
def zero_div(self):
|
||||
1/0 # In zero_div
|
||||
|
||||
def check_zero_div(self, msg):
|
||||
lines = msg.splitlines()
|
||||
self.assert_(lines[-3].startswith(' File'))
|
||||
self.assert_('1/0 # In zero_div' in lines[-2], lines[-2])
|
||||
self.assert_(lines[-1].startswith('ZeroDivisionError'), lines[-1])
|
||||
|
||||
def test_simple(self):
|
||||
try:
|
||||
1/0 # Marker
|
||||
except ZeroDivisionError as _:
|
||||
e = _
|
||||
lines = self.get_report(e).splitlines()
|
||||
self.assertEquals(len(lines), 4)
|
||||
self.assert_(lines[0].startswith('Traceback'))
|
||||
self.assert_(lines[1].startswith(' File'))
|
||||
self.assert_('1/0 # Marker' in lines[2])
|
||||
self.assert_(lines[3].startswith('ZeroDivisionError'))
|
||||
|
||||
def test_cause(self):
|
||||
def inner_raise():
|
||||
try:
|
||||
self.zero_div()
|
||||
except ZeroDivisionError as e:
|
||||
raise KeyError from e
|
||||
def outer_raise():
|
||||
inner_raise() # Marker
|
||||
blocks = boundaries.split(self.get_report(outer_raise))
|
||||
self.assertEquals(len(blocks), 3)
|
||||
self.assertEquals(blocks[1], cause_message)
|
||||
self.check_zero_div(blocks[0])
|
||||
self.assert_('inner_raise() # Marker' in blocks[2])
|
||||
|
||||
def test_context(self):
|
||||
def inner_raise():
|
||||
try:
|
||||
self.zero_div()
|
||||
except ZeroDivisionError:
|
||||
raise KeyError
|
||||
def outer_raise():
|
||||
inner_raise() # Marker
|
||||
blocks = boundaries.split(self.get_report(outer_raise))
|
||||
self.assertEquals(len(blocks), 3)
|
||||
self.assertEquals(blocks[1], context_message)
|
||||
self.check_zero_div(blocks[0])
|
||||
self.assert_('inner_raise() # Marker' in blocks[2])
|
||||
|
||||
def test_cause_recursive(self):
|
||||
def inner_raise():
|
||||
try:
|
||||
try:
|
||||
self.zero_div()
|
||||
except ZeroDivisionError as e:
|
||||
z = e
|
||||
raise KeyError from e
|
||||
except KeyError as e:
|
||||
raise z from e
|
||||
def outer_raise():
|
||||
inner_raise() # Marker
|
||||
blocks = boundaries.split(self.get_report(outer_raise))
|
||||
self.assertEquals(len(blocks), 3)
|
||||
self.assertEquals(blocks[1], cause_message)
|
||||
# The first block is the KeyError raised from the ZeroDivisionError
|
||||
self.assert_('raise KeyError from e' in blocks[0])
|
||||
self.assert_('1/0' not in blocks[0])
|
||||
# The second block (apart from the boundary) is the ZeroDivisionError
|
||||
# re-raised from the KeyError
|
||||
self.assert_('inner_raise() # Marker' in blocks[2])
|
||||
self.check_zero_div(blocks[2])
|
||||
|
||||
|
||||
|
||||
class PyExcReportingTests(BaseExceptionReportingTests, unittest.TestCase):
|
||||
#
|
||||
# This checks reporting through the 'traceback' module, with both
|
||||
# format_exception() and print_exception().
|
||||
#
|
||||
|
||||
def get_report(self, e):
|
||||
e = self.get_exception(e)
|
||||
s = ''.join(
|
||||
traceback.format_exception(type(e), e, e.__traceback__))
|
||||
with captured_output("stderr") as sio:
|
||||
traceback.print_exception(type(e), e, e.__traceback__)
|
||||
self.assertEquals(sio.getvalue(), s)
|
||||
return s
|
||||
|
||||
|
||||
class CExcReportingTests(BaseExceptionReportingTests, unittest.TestCase):
|
||||
#
|
||||
# This checks built-in reporting by the interpreter.
|
||||
#
|
||||
|
||||
def get_report(self, e):
|
||||
e = self.get_exception(e)
|
||||
with captured_output("stderr") as s:
|
||||
exception_print(e)
|
||||
return s.getvalue()
|
||||
|
||||
|
||||
def test_main():
|
||||
run_unittest(__name__)
|
||||
|
||||
if __name__ == "__main__":
|
||||
test_main()
|
||||
|
|
|
|||
|
|
@ -3,6 +3,7 @@
|
|||
import linecache
|
||||
import sys
|
||||
import types
|
||||
import itertools
|
||||
|
||||
__all__ = ['extract_stack', 'extract_tb', 'format_exception',
|
||||
'format_exception_only', 'format_list', 'format_stack',
|
||||
|
|
@ -107,7 +108,32 @@ def extract_tb(tb, limit = None):
|
|||
return list
|
||||
|
||||
|
||||
def print_exception(etype, value, tb, limit=None, file=None):
|
||||
_cause_message = (
|
||||
"\nThe above exception was the direct cause "
|
||||
"of the following exception:\n")
|
||||
|
||||
_context_message = (
|
||||
"\nDuring handling of the above exception, "
|
||||
"another exception occurred:\n")
|
||||
|
||||
def _iter_chain(exc, custom_tb=None, seen=None):
|
||||
if seen is None:
|
||||
seen = set()
|
||||
seen.add(exc)
|
||||
its = []
|
||||
cause = exc.__cause__
|
||||
context = exc.__context__
|
||||
if cause is not None and cause not in seen:
|
||||
its.append(_iter_chain(cause, None, seen))
|
||||
its.append([(_cause_message, None)])
|
||||
if context is not None and context is not cause and context not in seen:
|
||||
its.append(_iter_chain(context, None, seen))
|
||||
its.append([(_context_message, None)])
|
||||
its.append([(exc, custom_tb or exc.__traceback__)])
|
||||
return itertools.chain(*its)
|
||||
|
||||
|
||||
def print_exception(etype, value, tb, limit=None, file=None, chain=True):
|
||||
"""Print exception up to 'limit' stack trace entries from 'tb' to 'file'.
|
||||
|
||||
This differs from print_tb() in the following ways: (1) if
|
||||
|
|
@ -120,15 +146,23 @@ def print_exception(etype, value, tb, limit=None, file=None):
|
|||
"""
|
||||
if file is None:
|
||||
file = sys.stderr
|
||||
if chain:
|
||||
values = _iter_chain(value, tb)
|
||||
else:
|
||||
values = [(value, tb)]
|
||||
for value, tb in values:
|
||||
if isinstance(value, str):
|
||||
_print(file, value)
|
||||
continue
|
||||
if tb:
|
||||
_print(file, 'Traceback (most recent call last):')
|
||||
print_tb(tb, limit, file)
|
||||
lines = format_exception_only(etype, value)
|
||||
lines = format_exception_only(type(value), value)
|
||||
for line in lines[:-1]:
|
||||
_print(file, line, ' ')
|
||||
_print(file, lines[-1], '')
|
||||
|
||||
def format_exception(etype, value, tb, limit = None):
|
||||
def format_exception(etype, value, tb, limit=None, chain=True):
|
||||
"""Format a stack trace and the exception information.
|
||||
|
||||
The arguments have the same meaning as the corresponding arguments
|
||||
|
|
@ -137,12 +171,19 @@ def format_exception(etype, value, tb, limit = None):
|
|||
these lines are concatenated and printed, exactly the same text is
|
||||
printed as does print_exception().
|
||||
"""
|
||||
if tb:
|
||||
list = ['Traceback (most recent call last):\n']
|
||||
list = list + format_tb(tb, limit)
|
||||
else:
|
||||
list = []
|
||||
list = list + format_exception_only(etype, value)
|
||||
if chain:
|
||||
values = _iter_chain(value, tb)
|
||||
else:
|
||||
values = [(value, tb)]
|
||||
for value, tb in values:
|
||||
if isinstance(value, str):
|
||||
list.append(value + '\n')
|
||||
continue
|
||||
if tb:
|
||||
list.append('Traceback (most recent call last):\n')
|
||||
list.extend(format_tb(tb, limit))
|
||||
list.extend(format_exception_only(type(value), value))
|
||||
return list
|
||||
|
||||
def format_exception_only(etype, value):
|
||||
|
|
@ -208,33 +249,34 @@ def _some_str(value):
|
|||
return '<unprintable %s object>' % type(value).__name__
|
||||
|
||||
|
||||
def print_exc(limit=None, file=None):
|
||||
def print_exc(limit=None, file=None, chain=True):
|
||||
"""Shorthand for 'print_exception(*sys.exc_info(), limit, file)'."""
|
||||
if file is None:
|
||||
file = sys.stderr
|
||||
try:
|
||||
etype, value, tb = sys.exc_info()
|
||||
print_exception(etype, value, tb, limit, file)
|
||||
print_exception(etype, value, tb, limit, file, chain)
|
||||
finally:
|
||||
etype = value = tb = None
|
||||
|
||||
|
||||
def format_exc(limit=None):
|
||||
def format_exc(limit=None, chain=True):
|
||||
"""Like print_exc() but return a string."""
|
||||
try:
|
||||
etype, value, tb = sys.exc_info()
|
||||
return ''.join(format_exception(etype, value, tb, limit))
|
||||
return ''.join(
|
||||
format_exception(etype, value, tb, limit, chain))
|
||||
finally:
|
||||
etype = value = tb = None
|
||||
|
||||
|
||||
def print_last(limit=None, file=None):
|
||||
def print_last(limit=None, file=None, chain=True):
|
||||
"""This is a shorthand for 'print_exception(sys.last_type,
|
||||
sys.last_value, sys.last_traceback, limit, file)'."""
|
||||
if file is None:
|
||||
file = sys.stderr
|
||||
print_exception(sys.last_type, sys.last_value, sys.last_traceback,
|
||||
limit, file)
|
||||
limit, file, chain)
|
||||
|
||||
|
||||
def print_stack(f=None, limit=None, file=None):
|
||||
|
|
|
|||
|
|
@ -22,6 +22,8 @@ Core and Builtins
|
|||
|
||||
- Issue #3236: Return small longs from PyLong_FromString.
|
||||
|
||||
- Exception tracebacks now support exception chaining.
|
||||
|
||||
Library
|
||||
-------
|
||||
|
||||
|
|
@ -35,6 +37,8 @@ Library
|
|||
- All the u* variant functions and methods in gettext have been renamed to their
|
||||
none u* siblings.
|
||||
|
||||
- The traceback module has been expanded to handle chained exceptions.
|
||||
|
||||
C API
|
||||
-----
|
||||
|
||||
|
|
|
|||
|
|
@ -951,6 +951,26 @@ traceback_print(PyObject *self, PyObject *args)
|
|||
Py_RETURN_NONE;
|
||||
}
|
||||
|
||||
/* To test the format of exceptions as printed out. */
|
||||
static PyObject *
|
||||
exception_print(PyObject *self, PyObject *args)
|
||||
{
|
||||
PyObject *value;
|
||||
PyObject *tb;
|
||||
|
||||
if (!PyArg_ParseTuple(args, "O:exception_print",
|
||||
&value))
|
||||
return NULL;
|
||||
|
||||
tb = PyException_GetTraceback(value);
|
||||
PyErr_Display((PyObject *) Py_TYPE(value), value, tb);
|
||||
Py_XDECREF(tb);
|
||||
|
||||
Py_RETURN_NONE;
|
||||
}
|
||||
|
||||
|
||||
|
||||
static PyMethodDef TestMethods[] = {
|
||||
{"raise_exception", raise_exception, METH_VARARGS},
|
||||
{"test_config", (PyCFunction)test_config, METH_NOARGS},
|
||||
|
|
@ -995,6 +1015,7 @@ static PyMethodDef TestMethods[] = {
|
|||
{"profile_int", profile_int, METH_NOARGS},
|
||||
#endif
|
||||
{"traceback_print", traceback_print, METH_VARARGS},
|
||||
{"exception_print", exception_print, METH_VARARGS},
|
||||
{NULL, NULL} /* sentinel */
|
||||
};
|
||||
|
||||
|
|
|
|||
|
|
@ -256,7 +256,6 @@ show_warning(PyObject *filename, int lineno, PyObject *text, PyObject
|
|||
Py_XDECREF(name);
|
||||
|
||||
/* Print " source_line\n" */
|
||||
PyFile_WriteString(" ", f_stderr);
|
||||
if (sourceline) {
|
||||
char *source_line_str = PyUnicode_AsString(sourceline);
|
||||
while (*source_line_str == ' ' || *source_line_str == '\t' ||
|
||||
|
|
@ -267,7 +266,7 @@ show_warning(PyObject *filename, int lineno, PyObject *text, PyObject
|
|||
PyFile_WriteString("\n", f_stderr);
|
||||
}
|
||||
else
|
||||
Py_DisplaySourceLine(f_stderr, PyUnicode_AsString(filename), lineno);
|
||||
Py_DisplaySourceLine(f_stderr, PyUnicode_AsString(filename), lineno, 2);
|
||||
PyErr_Clear();
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -84,9 +84,24 @@ PyErr_SetObject(PyObject *exception, PyObject *value)
|
|||
return;
|
||||
value = fixed_value;
|
||||
}
|
||||
/* Avoid reference cycles through the context chain.
|
||||
This is O(chain length) but context chains are
|
||||
usually very short. Sensitive readers may try
|
||||
to inline the call to PyException_GetContext. */
|
||||
if (tstate->exc_value != value) {
|
||||
PyObject *o = tstate->exc_value, *context;
|
||||
while ((context = PyException_GetContext(o))) {
|
||||
Py_DECREF(context);
|
||||
if (context == value) {
|
||||
PyException_SetContext(o, NULL);
|
||||
break;
|
||||
}
|
||||
o = context;
|
||||
}
|
||||
Py_INCREF(tstate->exc_value);
|
||||
PyException_SetContext(value, tstate->exc_value);
|
||||
}
|
||||
}
|
||||
if (value != NULL && PyExceptionInstance_Check(value))
|
||||
tb = PyException_GetTraceback(value);
|
||||
Py_XINCREF(exception);
|
||||
|
|
@ -160,6 +175,9 @@ PyErr_ExceptionMatches(PyObject *exc)
|
|||
|
||||
/* Used in many places to normalize a raised exception, including in
|
||||
eval_code2(), do_raise(), and PyErr_Print()
|
||||
|
||||
XXX: should PyErr_NormalizeException() also call
|
||||
PyException_SetTraceback() with the resulting value and tb?
|
||||
*/
|
||||
void
|
||||
PyErr_NormalizeException(PyObject **exc, PyObject **val, PyObject **tb)
|
||||
|
|
|
|||
|
|
@ -1242,18 +1242,19 @@ PyErr_PrintEx(int set_sys_last_vars)
|
|||
if (exception == NULL)
|
||||
return;
|
||||
PyErr_NormalizeException(&exception, &v, &tb);
|
||||
tb = tb ? tb : Py_None;
|
||||
PyException_SetTraceback(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 ? tb : Py_None);
|
||||
PySys_SetObject("last_traceback", tb);
|
||||
}
|
||||
hook = PySys_GetObject("excepthook");
|
||||
if (hook) {
|
||||
PyObject *args = PyTuple_Pack(3,
|
||||
exception, v, tb ? tb : Py_None);
|
||||
PyObject *args = PyTuple_Pack(3, exception, v, tb);
|
||||
PyObject *result = PyEval_CallObject(hook, args);
|
||||
if (result == NULL) {
|
||||
PyObject *exception2, *v2, *tb2;
|
||||
|
|
@ -1293,21 +1294,16 @@ PyErr_PrintEx(int set_sys_last_vars)
|
|||
Py_XDECREF(tb);
|
||||
}
|
||||
|
||||
void
|
||||
PyErr_Display(PyObject *exception, PyObject *value, PyObject *tb)
|
||||
static void
|
||||
print_exception(PyObject *f, PyObject *value)
|
||||
{
|
||||
int err = 0;
|
||||
PyObject *f = PySys_GetObject("stderr");
|
||||
PyObject *type, *tb;
|
||||
|
||||
Py_INCREF(value);
|
||||
if (f == Py_None) {
|
||||
/* pass */
|
||||
}
|
||||
else if (f == NULL) {
|
||||
_PyObject_Dump(value);
|
||||
fprintf(stderr, "lost sys.stderr\n");
|
||||
}
|
||||
else {
|
||||
fflush(stdout);
|
||||
type = (PyObject *) Py_TYPE(value);
|
||||
tb = PyException_GetTraceback(value);
|
||||
if (tb && tb != Py_None)
|
||||
err = PyTraceBack_Print(tb, f);
|
||||
if (err == 0 &&
|
||||
|
|
@ -1343,16 +1339,17 @@ PyErr_Display(PyObject *exception, PyObject *value, PyObject *tb)
|
|||
if (err) {
|
||||
/* Don't do anything else */
|
||||
}
|
||||
else if (PyExceptionClass_Check(exception)) {
|
||||
else {
|
||||
assert(PyExceptionClass_Check(type));
|
||||
PyObject* moduleName;
|
||||
char* className = PyExceptionClass_Name(exception);
|
||||
char* className = PyExceptionClass_Name(type);
|
||||
if (className != NULL) {
|
||||
char *dot = strrchr(className, '.');
|
||||
if (dot != NULL)
|
||||
className = dot+1;
|
||||
}
|
||||
|
||||
moduleName = PyObject_GetAttrString(exception, "__module__");
|
||||
moduleName = PyObject_GetAttrString(type, "__module__");
|
||||
if (moduleName == NULL || !PyUnicode_Check(moduleName))
|
||||
{
|
||||
Py_DECREF(moduleName);
|
||||
|
|
@ -1374,8 +1371,6 @@ PyErr_Display(PyObject *exception, PyObject *value, PyObject *tb)
|
|||
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
|
||||
|
|
@ -1392,7 +1387,7 @@ PyErr_Display(PyObject *exception, PyObject *value, PyObject *tb)
|
|||
}
|
||||
/* try to write a newline in any case */
|
||||
err += PyFile_WriteString("\n", f);
|
||||
}
|
||||
Py_XDECREF(tb);
|
||||
Py_DECREF(value);
|
||||
/* If an error happened here, don't show it.
|
||||
XXX This is wrong, but too many callers rely on this behavior. */
|
||||
|
|
@ -1400,6 +1395,82 @@ PyErr_Display(PyObject *exception, PyObject *value, PyObject *tb)
|
|||
PyErr_Clear();
|
||||
}
|
||||
|
||||
static const char *cause_message =
|
||||
"\nThe above exception was the direct cause "
|
||||
"of the following exception:\n\n";
|
||||
|
||||
static const char *context_message =
|
||||
"\nDuring handling of the above exception, "
|
||||
"another exception occurred:\n\n";
|
||||
|
||||
static void
|
||||
print_exception_recursive(PyObject *f, PyObject *value, PyObject *seen)
|
||||
{
|
||||
int err = 0, res;
|
||||
PyObject *cause, *context;
|
||||
|
||||
if (seen != NULL) {
|
||||
/* Exception chaining */
|
||||
if (PySet_Add(seen, value) == -1)
|
||||
PyErr_Clear();
|
||||
else if (PyExceptionInstance_Check(value)) {
|
||||
cause = PyException_GetCause(value);
|
||||
context = PyException_GetContext(value);
|
||||
if (cause) {
|
||||
res = PySet_Contains(seen, cause);
|
||||
if (res == -1)
|
||||
PyErr_Clear();
|
||||
if (res == 0) {
|
||||
print_exception_recursive(
|
||||
f, cause, seen);
|
||||
err |= PyFile_WriteString(
|
||||
cause_message, f);
|
||||
}
|
||||
}
|
||||
if (context) {
|
||||
res = PySet_Contains(seen, context);
|
||||
if (res == -1)
|
||||
PyErr_Clear();
|
||||
if (res == 0) {
|
||||
print_exception_recursive(
|
||||
f, context, seen);
|
||||
err |= PyFile_WriteString(
|
||||
context_message, f);
|
||||
}
|
||||
}
|
||||
Py_XDECREF(context);
|
||||
Py_XDECREF(cause);
|
||||
}
|
||||
}
|
||||
print_exception(f, value);
|
||||
if (err != 0)
|
||||
PyErr_Clear();
|
||||
}
|
||||
|
||||
void
|
||||
PyErr_Display(PyObject *exception, PyObject *value, PyObject *tb)
|
||||
{
|
||||
PyObject *seen;
|
||||
PyObject *f = PySys_GetObject("stderr");
|
||||
if (f == Py_None) {
|
||||
/* pass */
|
||||
}
|
||||
else if (f == NULL) {
|
||||
_PyObject_Dump(value);
|
||||
fprintf(stderr, "lost sys.stderr\n");
|
||||
}
|
||||
else {
|
||||
/* We choose to ignore seen being possibly NULL, and report
|
||||
at least the main exception (it could be a MemoryError).
|
||||
*/
|
||||
seen = PySet_New(NULL);
|
||||
if (seen == NULL)
|
||||
PyErr_Clear();
|
||||
print_exception_recursive(f, value, seen);
|
||||
Py_XDECREF(seen);
|
||||
}
|
||||
}
|
||||
|
||||
PyObject *
|
||||
PyRun_StringFlags(const char *str, int start, PyObject *globals,
|
||||
PyObject *locals, PyCompilerFlags *flags)
|
||||
|
|
|
|||
|
|
@ -129,7 +129,7 @@ PyTraceBack_Here(PyFrameObject *frame)
|
|||
}
|
||||
|
||||
int
|
||||
Py_DisplaySourceLine(PyObject *f, const char *filename, int lineno)
|
||||
Py_DisplaySourceLine(PyObject *f, const char *filename, int lineno, int indent)
|
||||
{
|
||||
int err = 0;
|
||||
FILE *xfp = NULL;
|
||||
|
|
@ -139,8 +139,6 @@ Py_DisplaySourceLine(PyObject *f, const char *filename, int lineno)
|
|||
|
||||
if (filename == NULL)
|
||||
return -1;
|
||||
/* This is needed by Emacs' compile command */
|
||||
#define FMT " File \"%.500s\", line %d, in %.500s\n"
|
||||
xfp = fopen(filename, "r" PY_STDIOTEXTMODE);
|
||||
if (xfp == NULL) {
|
||||
/* Search tail of filename in sys.path before giving up */
|
||||
|
|
@ -203,9 +201,24 @@ Py_DisplaySourceLine(PyObject *f, const char *filename, int lineno)
|
|||
} while (*pLastChar != '\0' && *pLastChar != '\n');
|
||||
}
|
||||
if (i == lineno) {
|
||||
char buf[11];
|
||||
char *p = linebuf;
|
||||
while (*p == ' ' || *p == '\t' || *p == '\014')
|
||||
p++;
|
||||
|
||||
/* Write some spaces before the line */
|
||||
strcpy(buf, " ");
|
||||
assert (strlen(buf) == 10);
|
||||
while (indent > 0) {
|
||||
if(indent < 10)
|
||||
buf[indent] = '\0';
|
||||
err = PyFile_WriteString(buf, f);
|
||||
if (err != 0)
|
||||
break;
|
||||
indent -= 10;
|
||||
}
|
||||
|
||||
if (err == 0)
|
||||
err = PyFile_WriteString(p, f);
|
||||
if (err == 0 && strchr(p, '\n') == NULL)
|
||||
err = PyFile_WriteString("\n", f);
|
||||
|
|
@ -228,7 +241,7 @@ tb_displayline(PyObject *f, const char *filename, int lineno, const char *name)
|
|||
err = PyFile_WriteString(linebuf, f);
|
||||
if (err != 0)
|
||||
return err;
|
||||
return Py_DisplaySourceLine(f, filename, lineno);
|
||||
return Py_DisplaySourceLine(f, filename, lineno, 4);
|
||||
}
|
||||
|
||||
static int
|
||||
|
|
|
|||
Loading…
Reference in New Issue