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bpo-45948: Remove constructor discrepancy in C version of ElementTree.XMLParser (GH-31152)

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Both implementations accept target=None now.
(cherry picked from commit 168fd6453b)

Co-authored-by: Jacob Walls <jacobtylerwalls@gmail.com>
This commit is contained in:
Miss Islington (bot) 2022-02-12 00:50:11 -08:00 • committed by GitHub
parent f2fbfbe0ec
commit b7a65c939c
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GPG key ID: 4AEE18F83AFDEB23
4 changed files with 19 additions and 5 deletions
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9
Lib/test/test_xml_etree.py
View file

@ -758,6 +758,15 @@ class ElementTreeTest(unittest.TestCase):
('end-ns', ''),
])
def test_initialize_parser_without_target(self):
# Explicit None
parser = ET.XMLParser(target=None)
self.assertIsInstance(parser.target, ET.TreeBuilder)
# Implicit None
parser2 = ET.XMLParser()
self.assertIsInstance(parser2.target, ET.TreeBuilder)
def test_children(self):
# Test Element children iteration

5
Misc/NEWS.d/next/Library/2022-02-05-18-22-05.bpo-45948.w4mCnE.rst Normal file
View file

@ -0,0 +1,5 @@
Fixed a discrepancy in the C implementation of the
:mod:`xml.etree.ElementTree` module. Now, instantiating an
:class:`xml.etree.ElementTree.XMLParser` with a ``target=None``
keyword provides a default :class:`xml.etree.ElementTree.TreeBuilder`
target as the Python implementation does.

6
Modules/_elementtree.c
View file

@ -3636,7 +3636,7 @@ ignore_attribute_error(PyObject *value)
_elementtree.XMLParser.__init__
*
target: object = NULL
target: object = None
encoding: str(accept={str, NoneType}) = None
[clinic start generated code]*/
@ -3644,7 +3644,7 @@ _elementtree.XMLParser.__init__
static int
_elementtree_XMLParser___init___impl(XMLParserObject *self, PyObject *target,
const char *encoding)
/*[clinic end generated code: output=3ae45ec6cdf344e4 input=53e35a829ae043e8]*/
/*[clinic end generated code: output=3ae45ec6cdf344e4 input=7e716dd6e4f3e439]*/
{
self->entity = PyDict_New();
if (!self->entity)
@ -3669,7 +3669,7 @@ _elementtree_XMLParser___init___impl(XMLParserObject *self, PyObject *target,
(unsigned long)_Py_HashSecret.expat.hashsalt);
}
if (target) {
if (target != Py_None) {
Py_INCREF(target);
} else {
target = treebuilder_new(&TreeBuilder_Type, NULL, NULL);

4
Modules/clinic/_elementtree.c.h generated
View file

@ -807,7 +807,7 @@ _elementtree_XMLParser___init__(PyObject *self, PyObject *args, PyObject *kwargs
PyObject * const *fastargs;
Py_ssize_t nargs = PyTuple_GET_SIZE(args);
Py_ssize_t noptargs = nargs + (kwargs ? PyDict_GET_SIZE(kwargs) : 0) - 0;
PyObject *target = NULL;
PyObject *target = Py_None;
const char *encoding = NULL;
fastargs = _PyArg_UnpackKeywords(_PyTuple_CAST(args)->ob_item, nargs, kwargs, NULL, &_parser, 0, 0, 0, argsbuf);
@ -915,4 +915,4 @@ skip_optional:
exit:
return return_value;
}
/*[clinic end generated code: output=1385b5e5688f3614 input=a9049054013a1b77]*/
/*[clinic end generated code: output=992733cfc7390590 input=a9049054013a1b77]*/