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Issue #19437: Fix show_warning() of _warnings, stop at the first error to not 

call a Python function with an exception set
This commit is contained in:
Victor Stinner 2013-10-31 14:51:38 +01:00
parent 3cd04aa1b2
commit ae233eab5c
1 changed files with 16 additions and 10 deletions
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26
Python/_warnings.c
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@ -263,23 +263,28 @@ show_warning(PyObject *filename, int lineno, PyObject *text, PyObject
name = _PyObject_GetAttrId(category, &PyId___name__);
if (name == NULL) /* XXX Can an object lack a '__name__' attribute? */
return;
goto error;
f_stderr = PySys_GetObject("stderr");
if (f_stderr == NULL) {
fprintf(stderr, "lost sys.stderr\n");
Py_DECREF(name);
return;
goto error;
}
/* Print "filename:lineno: category: text\n" */
PyFile_WriteObject(filename, f_stderr, Py_PRINT_RAW);
PyFile_WriteString(lineno_str, f_stderr);
PyFile_WriteObject(name, f_stderr, Py_PRINT_RAW);
PyFile_WriteString(": ", f_stderr);
PyFile_WriteObject(text, f_stderr, Py_PRINT_RAW);
PyFile_WriteString("\n", f_stderr);
Py_XDECREF(name);
if (PyFile_WriteObject(filename, f_stderr, Py_PRINT_RAW) < 0)
goto error;
if (PyFile_WriteString(lineno_str, f_stderr) < 0)
goto error;
if (PyFile_WriteObject(name, f_stderr, Py_PRINT_RAW) < 0)
goto error;
if (PyFile_WriteString(": ", f_stderr) < 0)
goto error;
if (PyFile_WriteObject(text, f_stderr, Py_PRINT_RAW) < 0)
goto error;
if (PyFile_WriteString("\n", f_stderr) < 0)
goto error;
Py_CLEAR(name);
/* Print " source_line\n" */
if (sourceline) {
@ -314,6 +319,7 @@ show_warning(PyObject *filename, int lineno, PyObject *text, PyObject
}
error:
Py_XDECREF(name);
PyErr_Clear();
}