Add python 3.15 support

.github/workflows/build_wheels.yml

@@ -66,11 +66,11 @@ jobs:
         run: |
           tar zxvf *.tar.gz --strip-components=1
       - name: Build wheels
-        uses: pypa/cibuildwheel@v3.4.1
+        uses: pypa/cibuildwheel@54327ab9d35de03b359ac25c97de9417d94639c0 # v4.0.0rc1
         env:
-          CIBW_BUILD: "cp3{9..14}{t,}-${{ matrix.wheel_type }}"
+          CIBW_BUILD: "cp3{9..15}{t,}-${{ matrix.wheel_type }}"
           CIBW_ARCHS_LINUX: auto
-          CIBW_ENABLE: cpython-prerelease cpython-freethreading
+          CIBW_ENABLE: cpython-prerelease
       - uses: actions/upload-artifact@v7
         with:
           name: ${{ matrix.wheel_type }}-wheels
@@ -157,7 +157,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python_version: ["3.9", "3.10", "3.11", "3.12", "3.13", "3.13t", "3.14", "3.14t"]
+        python_version: ["3.9", "3.10", "3.11", "3.12", "3.13", "3.13t", "3.14", "3.14t", "3.15", "3.15t"]
     steps:
       - uses: actions/checkout@v6
       - name: Set up Python
@@ -192,7 +192,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python_version: ["3.9", "3.13", "3.14"]
+        python_version: ["3.9", "3.13", "3.14", "3.15"]
     steps:
       - uses: actions/checkout@v6
       - name: Set up Python
@@ -230,7 +230,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python_version: ["3.13", "3.14"]
+        python_version: ["3.13", "3.14", "3.15"]
     steps:
       - uses: actions/checkout@v6
       - name: Set up Python
@@ -425,6 +425,10 @@ jobs:
           mv dist/*-wheels/*.whl dist/
           rmdir dist/{sdist,*-wheels}
           ls -R dist
+      - name: Avoid publishing Python 3.15 wheels
+        run: |
+          rm -f dist/*cp315*
+          ls -R dist
       - uses: pypa/gh-action-pypi-publish@release/v1
         with:
           skip_existing: true

news/289.feature.rst

@@ -0,0 +1 @@
+Python 3.15 is now supported. The wheels are not yet published because the ABI is not yet frozen.

src/pystack/_pystack/cpython/code.h

@@ -236,4 +236,43 @@ typedef struct
 } PyCodeObject;
 }  // namespace Python3_14
 
+namespace Python3_15 {
+typedef uint16_t _Py_CODEUNIT;
+
+typedef struct
+{
+    PyObject_VAR_HEAD PyObject* co_consts;
+    PyObject* co_names;
+    PyObject* co_exceptiontable;
+    int co_flags;
+    int co_argcount;
+    int co_posonlyargcount;
+    int co_kwonlyargcount;
+    int co_stacksize;
+    int co_firstlineno;
+    int co_nlocalsplus;
+    int co_framesize;
+    int co_nlocals;
+    int co_ncellvars;
+    int co_nfreevars;
+    uint32_t co_version;
+    PyObject* co_localsplusnames;
+    PyObject* co_localspluskinds;
+    PyObject* co_filename;
+    PyObject* co_name;
+    PyObject* co_qualname;
+    PyObject* co_linetable;
+    PyObject* co_weakreflist;
+    void* co_executors;
+    void* _co_cached;
+    uintptr_t _co_instrumentation_version;
+    void* _co_monitoring;
+    Py_ssize_t _co_unique_id;
+    int _co_firsttraceable;
+    void* co_extra;
+    /* deal with co_tlbc somehow */
+    char co_code_adaptive[1];
+} PyCodeObject;
+}  // namespace Python3_15
+
 }  // namespace pystack

src/pystack/_pystack/cpython/gc.h

@@ -106,4 +106,25 @@ struct _gc_runtime_state
 
 }  // namespace Python3_14
 
+namespace Python3_15 {
+
+struct _gc_runtime_state
+{
+    int enabled;
+    int debug;
+    struct Python3_8::gc_generation young;
+    struct Python3_8::gc_generation old[2];
+    struct Python3_8::gc_generation permanent_generation;
+    struct gc_generation_stats generation_stats[NUM_GENERATIONS];
+    int collecting;
+    struct _PyInterpreterFrame* frame;
+    PyObject* garbage;
+    PyObject* callbacks;
+    Py_ssize_t heap_size;
+    Py_ssize_t long_lived_total;
+    Py_ssize_t long_lived_pending;
+};
+
+}  // namespace Python3_15
+
 }  // namespace pystack

src/pystack/_pystack/cpython/interpreter.h

@@ -416,4 +416,80 @@ typedef struct _is
 
 }  // namespace Python3_14
 
+namespace Python3_15 {
+
+struct _pythreadstate;
+
+typedef struct
+{
+    Python3_13::PyMutex mutex;
+    unsigned long long thread;
+    size_t level;
+} _PyRecursiveMutex;
+
+struct _import_state
+{
+    PyObject* modules;
+    PyObject* modules_by_index;
+    PyObject* importlib;
+    int override_frozen_modules;
+    int override_multi_interp_extensions_check;
+    PyObject* import_func;
+    _PyRecursiveMutex lock;
+    /* diagnostic info in PyImport_ImportModuleLevelObject() */
+    struct
+    {
+        int import_level;
+        int64_t accumulated;
+        int header;
+    } find_and_load;
+};
+
+struct _gil_runtime_state
+{
+    unsigned long interval;
+    struct _pythreadstate* last_holder;
+    int locked;
+    unsigned long switch_number;
+    pthread_cond_t cond;
+    pthread_cond_t mutex;
+#ifdef FORCE_SWITCHING
+    pthread_cond_t switch_cond;
+    pthread_cond_t switch_mutex;
+#endif
+};
+
+typedef struct _is
+{
+    struct _ceval_state ceval;
+    struct _is* next;
+    int64_t id;
+    Py_ssize_t id_refcount;
+    int requires_idref;
+    long _whence;
+    int _initialized;
+    int _ready;
+    int finalizing;
+    uintptr_t last_restart_version;
+    struct pythreads
+    {
+        uint64_t next_unique_id;
+        struct _pythreadstate* head;
+        struct _pythreadstate* preallocated;
+        struct _pythreadstate* main;
+        Py_ssize_t count;
+        size_t stacksize;
+    } threads;
+    void* runtime;
+    struct _pythreadstate* _finalizing;
+    unsigned long _finalizing_id;
+    struct _gc_runtime_state gc;
+    PyObject* sysdict;
+    PyObject* builtins;
+    struct _import_state imports;
+    struct _gil_runtime_state _gil;
+} PyInterpreterState;
+
+}  // namespace Python3_15
+
 }  // namespace pystack