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authorPetr Viktorin <encukou@gmail.com>2020-05-28 16:14:46 (GMT)
committerGitHub <noreply@github.com>2020-05-28 16:14:46 (GMT)
commit459acc551656785bc4a3363d65c7a60f822da8e3 (patch)
treed521a0e2a2de518d2d93f1040eb4def13b4094cb /Modules/_datetimemodule.c
parent60398512c86c5535edd817c99ccb50453b3b0471 (diff)
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bpo-40777: Initialize PyDateTime_IsoCalendarDateType.tp_base at run-time (GH-20493)
Recent changes to _datetimemodule broke compilation on mingw; see the comments in this change for details. FWIW, @corona10: this issue is why `PyType_FromModuleAndSpec` & friends take the `bases` argument at run time.
Diffstat (limited to 'Modules/_datetimemodule.c')
-rw-r--r--Modules/_datetimemodule.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/Modules/_datetimemodule.c b/Modules/_datetimemodule.c
index 7a5efd2..acdde83 100644
--- a/Modules/_datetimemodule.c
+++ b/Modules/_datetimemodule.c
@@ -3325,7 +3325,7 @@ static PyTypeObject PyDateTime_IsoCalendarDateType = {
.tp_doc = iso_calendar_date__doc__,
.tp_methods = iso_calendar_date_methods,
.tp_getset = iso_calendar_date_getset,
- .tp_base = &PyTuple_Type,
+ // .tp_base = &PyTuple_Type, // filled in PyInit__datetime
.tp_new = iso_calendar_date_new,
};
@@ -4079,7 +4079,7 @@ static PyTypeObject PyDateTime_TimeZoneType = {
timezone_methods, /* tp_methods */
0, /* tp_members */
0, /* tp_getset */
- &PyDateTime_TZInfoType, /* tp_base */
+ 0, /* tp_base; filled in PyInit__datetime */
0, /* tp_dict */
0, /* tp_descr_get */
0, /* tp_descr_set */
@@ -6458,7 +6458,8 @@ static PyTypeObject PyDateTime_DateTimeType = {
datetime_methods, /* tp_methods */
0, /* tp_members */
datetime_getset, /* tp_getset */
- &PyDateTime_DateType, /* tp_base */
+ 0, /* tp_base; filled in
+ PyInit__datetime */
0, /* tp_dict */
0, /* tp_descr_get */
0, /* tp_descr_set */
@@ -6524,6 +6525,12 @@ PyInit__datetime(void)
if (m == NULL)
return NULL;
+ // `&...` is not a constant expression according to a strict reading
+ // of C standards. Fill tp_base at run-time rather than statically.
+ // See https://bugs.python.org/issue40777
+ PyDateTime_IsoCalendarDateType.tp_base = &PyTuple_Type;
+ PyDateTime_TimeZoneType.tp_base = &PyDateTime_TZInfoType;
+ PyDateTime_DateTimeType.tp_base = &PyDateTime_DateType;
PyTypeObject *types[] = {
&PyDateTime_DateType,