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[BUG] no member named ‘__pyx_outer_scope’ #4367
Description
Describe the bug
Cython generates c code which fails to compile
To Reproduce
Code to reproduce the behaviour:
# test.py
def func(arg1, arg2):
@arg1([x for x in arg2])
async def method():
pass$ cython -3 test.py
$ cc -I/usr/include/python3.9 -c -o test.o test.ctest.c: In function ‘__pyx_pf_4test_func’:
test.c:2209:34: error: ‘struct __pyx_obj_4test___pyx_scope_struct__func’ has no member named ‘__pyx_outer_scope’
2209 | if (unlikely(!__pyx_cur_scope->__pyx_outer_scope->__pyx_v_arg2)) { __Pyx_RaiseClosureNameError("arg2"); __PYX_ERR(0, 2, __pyx_L1_error) }
| ^~
test.c:994:43: note: in definition of macro ‘unlikely’
994 | #define unlikely(x) __builtin_expect(!!(x), 0)
| ^
test.c:2210:49: error: ‘struct __pyx_obj_4test___pyx_scope_struct__func’ has no member named ‘__pyx_outer_scope’
2210 | if (likely(PyList_CheckExact(__pyx_cur_scope->__pyx_outer_scope->__pyx_v_arg2)) || PyTuple_CheckExact(__pyx_cur_scope->__pyx_outer_scope->__pyx_v_arg2)) {
| ^~
test.c:993:43: note: in definition of macro ‘likely’
993 | #define likely(x) __builtin_expect(!!(x), 1)
| ^
/usr/include/python3.9/object.h:130:42: note: in expansion of macro ‘_PyObject_CAST_CONST’
130 | #define Py_IS_TYPE(ob, type) _Py_IS_TYPE(_PyObject_CAST_CONST(ob), type)
| ^~~~~~~~~~~~~~~~~~~~
/usr/include/python3.9/listobject.h:26:31: note: in expansion of macro ‘Py_IS_TYPE’
26 | #define PyList_CheckExact(op) Py_IS_TYPE(op, &PyList_Type)
| ^~~~~~~~~~
test.c:2210:16: note: in expansion of macro ‘PyList_CheckExact’
2210 | if (likely(PyList_CheckExact(__pyx_cur_scope->__pyx_outer_scope->__pyx_v_arg2)) || PyTuple_CheckExact(__pyx_cur_scope->__pyx_outer_scope->__pyx_v_arg2)) {
| ^~~~~~~~~~~~~~~~~
In file included from /usr/include/python3.9/pytime.h:6,
from /usr/include/python3.9/Python.h:94,
from test.c:16:
test.c:2210:122: error: ‘struct __pyx_obj_4test___pyx_scope_struct__func’ has no member named ‘__pyx_outer_scope’
2210 | if (likely(PyList_CheckExact(__pyx_cur_scope->__pyx_outer_scope->__pyx_v_arg2)) || PyTuple_CheckExact(__pyx_cur_scope->__pyx_outer_scope->__pyx_v_arg2)) {
| ^~
/usr/include/python3.9/object.h:113:53: note: in definition of macro ‘_PyObject_CAST_CONST’
113 | #define _PyObject_CAST_CONST(op) ((const PyObject*)(op))
| ^~
/usr/include/python3.9/tupleobject.h:28:32: note: in expansion of macro ‘Py_IS_TYPE’
28 | #define PyTuple_CheckExact(op) Py_IS_TYPE(op, &PyTuple_Type)
| ^~~~~~~~~~
test.c:2210:88: note: in expansion of macro ‘PyTuple_CheckExact’
2210 | if (likely(PyList_CheckExact(__pyx_cur_scope->__pyx_outer_scope->__pyx_v_arg2)) || PyTuple_CheckExact(__pyx_cur_scope->__pyx_outer_scope->__pyx_v_arg2)) {
| ^~~~~~~~~~~~~~~~~~
test.c:2211:34: error: ‘struct __pyx_obj_4test___pyx_scope_struct__func’ has no member named ‘__pyx_outer_scope’
2211 | __pyx_t_4 = __pyx_cur_scope->__pyx_outer_scope->__pyx_v_arg2; __Pyx_INCREF(__pyx_t_4); __pyx_t_5 = 0;
| ^~
test.c:2214:67: error: ‘struct __pyx_obj_4test___pyx_scope_struct__func’ has no member named ‘__pyx_outer_scope’
2214 | __pyx_t_5 = -1; __pyx_t_4 = PyObject_GetIter(__pyx_cur_scope->__pyx_outer_scope->__pyx_v_arg2); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 2, __pyx_L1_error)
| ^~
test.c:2250:40: error: ‘struct __pyx_obj_4test___pyx_scope_struct__func’ has no member named ‘__pyx_7genexpr__pyx_v_x’
2250 | __Pyx_XDECREF_SET(__pyx_cur_scope->__pyx_7genexpr__pyx_v_x, __pyx_t_7);
| ^~
test.c:1119:38: note: in definition of macro ‘__Pyx_XDECREF_SET’
1119 | PyObject *tmp = (PyObject *) r;\
| ^
test.c:2250:40: error: ‘struct __pyx_obj_4test___pyx_scope_struct__func’ has no member named ‘__pyx_7genexpr__pyx_v_x’
2250 | __Pyx_XDECREF_SET(__pyx_cur_scope->__pyx_7genexpr__pyx_v_x, __pyx_t_7);
| ^~
test.c:1120:9: note: in definition of macro ‘__Pyx_XDECREF_SET’
1120 | r = v; __Pyx_XDECREF(tmp);\
| ^
test.c:2253:79: error: ‘struct __pyx_obj_4test___pyx_scope_struct__func’ has no member named ‘__pyx_7genexpr__pyx_v_x’
2253 | if (unlikely(__Pyx_ListComp_Append(__pyx_t_3, (PyObject*)__pyx_cur_scope->__pyx_7genexpr__pyx_v_x))) __PYX_ERR(0, 2, __pyx_L1_error)
| ^~
test.c:994:43: note: in definition of macro ‘unlikely’
994 | #define unlikely(x) __builtin_expect(!!(x), 0)
| ^
Expected behavior
The code compiles without errors
Environment (please complete the following information):
- OS: Linux
- Python 3.9.6
- Cython version 0.29.24 and Cython version 3.0.0a9
- cc (GCC) 11.1.0
Additional context
This works:
# test.py
def func(arg1, arg2):
list_ = [x for x in arg2]
@arg1(list_)
async def method():
pass
Activity
da-woods commentedon Sep 12, 2021
If doesn't specifically look to be related to
async- you get the same issue with a regular def function.I suspect the decorator is just analysed in the scope of
methodat some point rather than in the scope offunc.Try to handle function outer_attrs more consistently
Handle function "outer_attrs" more consistently (GH-4375)
Squashed commit of the following: