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bpo-30404: The -u option now makes the stdout and stderr streams totally unbuffered. (#1667)

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Serhiy Storchaka 2017-10-04 20:25:40 +03:00 • committed by GitHub
parent 0b5e61ddca
commit 77732be801
4 changed files with 17 additions and 12 deletions
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12
Python/pylifecycle.c
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@ -1498,7 +1498,7 @@ create_stdio(PyObject* io,
PyObject *buf = NULL, *stream = NULL, *text = NULL, *raw = NULL, *res;
const char* mode;
const char* newline;
PyObject *line_buffering;
PyObject *line_buffering, *write_through;
int buffering, isatty;
_Py_IDENTIFIER(open);
_Py_IDENTIFIER(isatty);
@ -1555,7 +1555,11 @@ create_stdio(PyObject* io,
Py_DECREF(res);
if (isatty == -1)
goto error;
if (isatty || Py_UnbufferedStdioFlag)
if (Py_UnbufferedStdioFlag)
write_through = Py_True;
else
write_through = Py_False;
if (isatty && !Py_UnbufferedStdioFlag)
line_buffering = Py_True;
else
line_buffering = Py_False;
@ -1574,9 +1578,9 @@ create_stdio(PyObject* io,
newline = "\n";
#endif
stream = _PyObject_CallMethodId(io, &PyId_TextIOWrapper, "OsssO",
stream = _PyObject_CallMethodId(io, &PyId_TextIOWrapper, "OsssOO",
buf, encoding, errors,
newline, line_buffering);
newline, line_buffering, write_through);
Py_CLEAR(buf);
if (stream == NULL)
goto error;