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Issue #19421: fix a check in warnings.warn() to be able to use it during Python

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finalization.

sys.argv is set to None during Python finalization: add PyList_Check() to avoid
a crash in PyList_Size().
This commit is contained in:
Victor Stinner 2013-10-28 18:47:22 +01:00
parent 1df788acd4
commit ce5f4fba11
1 changed files with 3 additions and 1 deletions
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4
Python/_warnings.c
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@ -534,7 +534,9 @@ setup_context(Py_ssize_t stack_level, PyObject **filename, int *lineno,
goto handle_error;
if (strcmp(module_str, "__main__") == 0) {
PyObject *argv = PySys_GetObject("argv");
if (argv != NULL && PyList_Size(argv) > 0) {
/* PyList_Check() is needed because sys.argv is set to None during
Python finalization */
if (argv != NULL && PyList_Check(argv) && PyList_Size(argv) > 0) {
int is_true;
*filename = PyList_GetItem(argv, 0);
Py_INCREF(*filename);