summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--Lib/test/test_sys.py26
-rw-r--r--Python/pythonrun.c4
2 files changed, 22 insertions, 8 deletions
diff --git a/Lib/test/test_sys.py b/Lib/test/test_sys.py
index ecbc9db..2dd2746 100644
--- a/Lib/test/test_sys.py
+++ b/Lib/test/test_sys.py
@@ -86,6 +86,8 @@ class SysModuleTest(unittest.TestCase):
# Python/pythonrun.c::PyErr_PrintEx() is tricky.
def test_exit(self):
+ import subprocess
+
self.assertRaises(TypeError, sys.exit, 42, 42)
# call without argument
@@ -140,20 +142,28 @@ class SysModuleTest(unittest.TestCase):
self.fail("no exception")
# test that the exit machinery handles SystemExits properly
- import subprocess
rc = subprocess.call([sys.executable, "-c",
"raise SystemExit(47)"])
self.assertEqual(rc, 47)
+ def check_exit_message(code, expected):
+ process = subprocess.Popen([sys.executable, "-c", code],
+ stderr=subprocess.PIPE)
+ stdout, stderr = process.communicate()
+ self.assertEqual(process.returncode, 1)
+ self.assertTrue(stderr.startswith(expected), stderr)
+
+ # test that stderr buffer if flushed before the exit message is written
+ # into stderr
+ check_exit_message(
+ r'import sys; sys.stderr.write("unflushed,"); sys.exit("message")',
+ b"unflushed,message")
+
# test that the exit message is written with backslashreplace error
# handler to stderr
- import subprocess
- code = r'import sys; sys.exit("surrogates:\uDCFF")'
- process = subprocess.Popen([sys.executable, "-c", code],
- stderr=subprocess.PIPE)
- stdout, stderr = process.communicate()
- self.assertEqual(process.returncode, 1)
- self.assertTrue(stderr.startswith(b"surrogates:\\udcff"), stderr)
+ check_exit_message(
+ r'import sys; sys.exit("surrogates:\uDCFF")',
+ b"surrogates:\\udcff")
def test_getdefaultencoding(self):
self.assertRaises(TypeError, sys.getdefaultencoding, 42)
diff --git a/Python/pythonrun.c b/Python/pythonrun.c
index 4932c4a..d398196 100644
--- a/Python/pythonrun.c
+++ b/Python/pythonrun.c
@@ -1367,7 +1367,11 @@ handle_system_exit(void)
if (PyLong_Check(value))
exitcode = (int)PyLong_AsLong(value);
else {
+ PyObject *sys_stderr = PySys_GetObject("stderr");
+ if (sys_stderr != NULL)
+ PyObject_CallMethod(sys_stderr, "flush", NULL);
PyObject_Print(value, stderr, Py_PRINT_RAW);
+ fflush(stderr);
PySys_WriteStderr("\n");
exitcode = 1;
}