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Issue #27186: Update os.fspath()/PyOS_FSPath() to check the return

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type of __fspath__().

As part of this change, also make sure that the pure Python
implementation of os.fspath() is tested.
This commit is contained in:
Brett Cannon 2016-06-24 12:03:43 -07:00
parent 19b2a53a82
commit c78ca1e044
7 changed files with 101 additions and 71 deletions
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13
Modules/posixmodule.c
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@ -12317,12 +12317,21 @@ PyOS_FSPath(PyObject *path)
if (NULL == func) {
return PyErr_Format(PyExc_TypeError,
"expected str, bytes or os.PathLike object, "
"not %S",
path->ob_type);
"not %.200s",
Py_TYPE(path)->tp_name);
}
path_repr = PyObject_CallFunctionObjArgs(func, NULL);
Py_DECREF(func);
if (!(PyUnicode_Check(path_repr) || PyBytes_Check(path_repr))) {
PyErr_Format(PyExc_TypeError,
"expected %.200s.__fspath__() to return str or bytes, "
"not %.200s", Py_TYPE(path)->tp_name,
Py_TYPE(path_repr)->tp_name);
Py_DECREF(path_repr);
return NULL;
}
return path_repr;
}