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v0.5.1
https://github.com/python/cpython
09 December 2020, 11:06:31 UTC
Revision 226a012d1cd61f42ecd3056c554922f359a1a35d authored by Brandt Bucher on 05 December 2020, 03:45:57 UTC, committed by GitHub on 05 December 2020, 03:45:57 UTC 
bpo-42536: GC track recycled tuples (GH-23623)
 
Several built-in and standard library types now ensure that their internal result tuples are always tracked by the garbage collector:

- collections.OrderedDict.items
- dict.items
- enumerate
- functools.reduce
- itertools.combinations
- itertools.combinations_with_replacement
- itertools.permutations
- itertools.product
- itertools.zip_longest
- zip

Previously, they could have become untracked by a prior garbage collection.
1 parent 2de5097
Raw File
Tip revision: 226a012d1cd61f42ecd3056c554922f359a1a35d authored by Brandt Bucher on 05 December 2020, 03:45:57 UTC
bpo-42536: GC track recycled tuples (GH-23623)
Tip revision: 226a012
_contextvarsmodule.c 
#include "Python.h"

#include "clinic/_contextvarsmodule.c.h"

/*[clinic input]
module _contextvars
[clinic start generated code]*/
/*[clinic end generated code: output=da39a3ee5e6b4b0d input=a0955718c8b8cea6]*/


/*[clinic input]
_contextvars.copy_context
[clinic start generated code]*/

static PyObject *
_contextvars_copy_context_impl(PyObject *module)
/*[clinic end generated code: output=1fcd5da7225c4fa9 input=89bb9ae485888440]*/
{
    return PyContext_CopyCurrent();
}


PyDoc_STRVAR(module_doc, "Context Variables");

static PyMethodDef _contextvars_methods[] = {
    _CONTEXTVARS_COPY_CONTEXT_METHODDEF
    {NULL, NULL}
};

static int
_contextvars_exec(PyObject *m)
{
    if (PyModule_AddType(m, &PyContext_Type) < 0) {
        return -1;
    }
    if (PyModule_AddType(m, &PyContextVar_Type) < 0) {
        return -1;
    }
    if (PyModule_AddType(m, &PyContextToken_Type) < 0) {
        return -1;
    }
    return 0;
}

static struct PyModuleDef_Slot _contextvars_slots[] = {
    {Py_mod_exec, _contextvars_exec},
    {0, NULL}
};

static struct PyModuleDef _contextvarsmodule = {
    PyModuleDef_HEAD_INIT,      /* m_base */
    "_contextvars",             /* m_name */
    module_doc,                 /* m_doc */
    0,                          /* m_size */
    _contextvars_methods,       /* m_methods */
    _contextvars_slots,         /* m_slots */
    NULL,                       /* m_traverse */
    NULL,                       /* m_clear */
    NULL,                       /* m_free */
};

PyMODINIT_FUNC
PyInit__contextvars(void)
{
    return PyModuleDef_Init(&_contextvarsmodule);
}
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