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Add -3 warnings that set.copy(), dict.copy(), and defaultdict.copy() will go away in Py3.x

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This commit is contained in:
Raymond Hettinger 2008-02-09 04:37:49 +00:00
parent 2e827bfdfe
commit 17a74c395e
3 changed files with 31 additions and 3 deletions
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14
Modules/_collectionsmodule.c
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@ -1186,12 +1186,22 @@ defdict_copy(defdictobject *dd)
{
/* This calls the object's class. That only works for subclasses
whose class constructor has the same signature. Subclasses that
define a different constructor signature must override copy().
define a different constructor signature must override __copy__().
*/
return PyObject_CallFunctionObjArgs((PyObject*)Py_TYPE(dd),
dd->default_factory, dd, NULL);
}
static PyObject *
defdict_copy_method(defdictobject *dd)
{
if (Py_Py3kWarningFlag &&
PyErr_Warn(PyExc_DeprecationWarning,
"defaultdict.copy() not supported in 3.x") < 0)
return NULL;
return defdict_copy(dd);
}
static PyObject *
defdict_reduce(defdictobject *dd)
{
@ -1241,7 +1251,7 @@ defdict_reduce(defdictobject *dd)
static PyMethodDef defdict_methods[] = {
{"__missing__", (PyCFunction)defdict_missing, METH_O,
defdict_missing_doc},
{"copy", (PyCFunction)defdict_copy, METH_NOARGS,
{"copy", (PyCFunction)defdict_copy_method, METH_NOARGS,
defdict_copy_doc},
{"__copy__", (PyCFunction)defdict_copy, METH_NOARGS,
defdict_copy_doc},