support 3.13

Author: davidhewitt

.github/workflows/build.yml

@@ -147,6 +147,3 @@ jobs:
       RUST_BACKTRACE: 1
       RUSTFLAGS: "-D warnings"
       RUSTDOCFLAGS: "-D warnings"
-      # FIXME this is a temporary hack for testing 3.13 prereleases, probably we should have a flag
-      # PYO3_ALLOW_3_13_PRERELEASES or similar so that users don't need to run this flag in their CI
-      UNSAFE_PYO3_SKIP_VERSION_CHECK: "1"

newsfragments/4184.packaging.md

@@ -0,0 +1 @@
+Support Python 3.13.

noxfile.py

@@ -30,7 +30,7 @@
 PYO3_GUIDE_SRC = PYO3_DIR / "guide" / "src"
 PYO3_GUIDE_TARGET = PYO3_TARGET / "guide"
 PYO3_DOCS_TARGET = PYO3_TARGET / "doc"
-PY_VERSIONS = ("3.7", "3.8", "3.9", "3.10", "3.11", "3.12")
+PY_VERSIONS = ("3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "3.13")
 PYPY_VERSIONS = ("3.7", "3.8", "3.9", "3.10")
 
 
@@ -631,11 +631,11 @@ def test_version_limits(session: nox.Session):
         config_file.set("CPython", "3.6")
         _run_cargo(session, "check", env=env, expect_error=True)
 
-        assert "3.13" not in PY_VERSIONS
-        config_file.set("CPython", "3.13")
+        assert "3.14" not in PY_VERSIONS
+        config_file.set("CPython", "3.14")
         _run_cargo(session, "check", env=env, expect_error=True)
 
-        # 3.13 CPython should build with forward compatibility
+        # 3.14 CPython should build with forward compatibility
         env["PYO3_USE_ABI3_FORWARD_COMPATIBILITY"] = "1"
         _run_cargo(session, "check", env=env)
 

pyo3-ffi/build.rs

@@ -17,7 +17,7 @@ const SUPPORTED_VERSIONS_CPYTHON: SupportedVersions = SupportedVersions {
     min: PythonVersion { major: 3, minor: 7 },
     max: PythonVersion {
         major: 3,
-        minor: 12,
+        minor: 13,
     },
 };
 

pyo3-ffi/src/cpython/longobject.rs

@@ -0,0 +1,74 @@
+use crate::longobject::*;
+use crate::object::*;
+#[cfg(Py_3_13)]
+use crate::pyport::Py_ssize_t;
+use libc::size_t;
+#[cfg(Py_3_13)]
+use std::os::raw::c_void;
+use std::os::raw::{c_int, c_uchar};
+
+#[cfg(Py_3_13)]
+extern "C" {
+    pub fn PyLong_FromUnicodeObject(u: *mut PyObject, base: c_int) -> *mut PyObject;
+}
+
+#[cfg(Py_3_13)]
+pub const Py_ASNATIVEBYTES_DEFAULTS: c_int = -1;
+#[cfg(Py_3_13)]
+pub const Py_ASNATIVEBYTES_BIG_ENDIAN: c_int = 0;
+#[cfg(Py_3_13)]
+pub const Py_ASNATIVEBYTES_LITTLE_ENDIAN: c_int = 1;
+#[cfg(Py_3_13)]
+pub const Py_ASNATIVEBYTES_NATIVE_ENDIAN: c_int = 3;
+#[cfg(Py_3_13)]
+pub const Py_ASNATIVEBYTES_UNSIGNED_BUFFER: c_int = 4;
+#[cfg(Py_3_13)]
+pub const Py_ASNATIVEBYTES_REJECT_NEGATIVE: c_int = 8;
+
+extern "C" {
+    // skipped _PyLong_Sign
+
+    #[cfg(Py_3_13)]
+    pub fn PyLong_AsNativeBytes(
+        v: *mut PyObject,
+        buffer: *mut c_void,
+        n_bytes: Py_ssize_t,
+        flags: c_int,
+    ) -> Py_ssize_t;
+
+    #[cfg(Py_3_13)]
+    pub fn PyLong_FromNativeBytes(
+        buffer: *const c_void,
+        n_bytes: size_t,
+        flags: c_int,
+    ) -> *mut PyObject;
+
+    #[cfg(Py_3_13)]
+    pub fn PyLong_FromUnsignedNativeBytes(
+        buffer: *const c_void,
+        n_bytes: size_t,
+        flags: c_int,
+    ) -> *mut PyObject;
+
+    // skipped PyUnstable_Long_IsCompact
+    // skipped PyUnstable_Long_CompactValue
+
+    #[cfg_attr(PyPy, link_name = "_PyPyLong_FromByteArray")]
+    pub fn _PyLong_FromByteArray(
+        bytes: *const c_uchar,
+        n: size_t,
+        little_endian: c_int,
+        is_signed: c_int,
+    ) -> *mut PyObject;
+
+    #[cfg_attr(PyPy, link_name = "_PyPyLong_AsByteArrayO")]
+    pub fn _PyLong_AsByteArray(
+        v: *mut PyLongObject,
+        bytes: *mut c_uchar,
+        n: size_t,
+        little_endian: c_int,
+        is_signed: c_int,
+    ) -> c_int;
+
+    // skipped _PyLong_GCD
+}

pyo3-ffi/src/cpython/mod.rs

@@ -18,6 +18,7 @@ pub(crate) mod import;
 pub(crate) mod initconfig;
 // skipped interpreteridobject.h
 pub(crate) mod listobject;
+pub(crate) mod longobject;
 #[cfg(all(Py_3_9, not(PyPy)))]
 pub(crate) mod methodobject;
 pub(crate) mod object;
@@ -53,6 +54,7 @@ pub use self::import::*;
 #[cfg(all(Py_3_8, not(PyPy)))]
 pub use self::initconfig::*;
 pub use self::listobject::*;
+pub use self::longobject::*;
 #[cfg(all(Py_3_9, not(PyPy)))]
 pub use self::methodobject::*;
 pub use self::object::*;

pyo3-ffi/src/longobject.rs

@@ -1,8 +1,6 @@
 use crate::object::*;
 use crate::pyport::Py_ssize_t;
 use libc::size_t;
-#[cfg(not(Py_LIMITED_API))]
-use std::os::raw::c_uchar;
 use std::os::raw::{c_char, c_double, c_int, c_long, c_longlong, c_ulong, c_ulonglong, c_void};
 use std::ptr::addr_of_mut;
 
@@ -90,34 +88,12 @@ extern "C" {
         arg3: c_int,
     ) -> *mut PyObject;
 }
-// skipped non-limited PyLong_FromUnicodeObject
-// skipped non-limited _PyLong_FromBytes
 
 #[cfg(not(Py_LIMITED_API))]
 extern "C" {
-    // skipped non-limited _PyLong_Sign
-
     #[cfg_attr(PyPy, link_name = "_PyPyLong_NumBits")]
+    #[cfg(not(Py_3_13))]
     pub fn _PyLong_NumBits(obj: *mut PyObject) -> size_t;
-
-    // skipped _PyLong_DivmodNear
-
-    #[cfg_attr(PyPy, link_name = "_PyPyLong_FromByteArray")]
-    pub fn _PyLong_FromByteArray(
-        bytes: *const c_uchar,
-        n: size_t,
-        little_endian: c_int,
-        is_signed: c_int,
-    ) -> *mut PyObject;
-
-    #[cfg_attr(PyPy, link_name = "_PyPyLong_AsByteArrayO")]
-    pub fn _PyLong_AsByteArray(
-        v: *mut PyLongObject,
-        bytes: *mut c_uchar,
-        n: size_t,
-        little_endian: c_int,
-        is_signed: c_int,
-    ) -> c_int;
 }
 
 // skipped non-limited _PyLong_Format
@@ -130,6 +106,5 @@ extern "C" {
     pub fn PyOS_strtol(arg1: *const c_char, arg2: *mut *mut c_char, arg3: c_int) -> c_long;
 }
 
-// skipped non-limited _PyLong_GCD
 // skipped non-limited _PyLong_Rshift
 // skipped non-limited _PyLong_Lshift