ffi: fix PyTypeObject definition on Python 3.8

CHANGELOG.md

@@ -39,7 +39,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Correct FFI definition `Py_tracefunc` to be `unsafe extern "C" fn` (was previously safe). [#2407](https://github.com/PyO3/pyo3/pull/2407)
 - Fix case where `ValueError` without message could be raised by the `#[derive(FromPyObject)]` generated implementation for a tuple struct. [#2414](https://github.com/PyO3/pyo3/pull/2414)
 - Fix compile failure when using `#[pyo3(from_py_with = "pouf")]` in on a field in a `#[derive(FromPyObject)]` struct. [#2414](https://github.com/PyO3/pyo3/pull/2414)
-- Fix FFI definitions `_PyDateTime_BaseTime` lacking leading underscores in their names. [#2421](https://github.com/PyO3/pyo3/pull/2421)
+- Fix FFI definitions `_PyDateTime_BaseTime` and `_PyDateTime_BaseDateTime` lacking leading underscores in their names. [#2421](https://github.com/PyO3/pyo3/pull/2421)
 - Remove FFI definition `PyArena` on Python 3.10 and up. [#2421](https://github.com/PyO3/pyo3/pull/2421)
 - Fix FFI definition `PyCompilerFlags` missing member `cf_feature_version` on Python 3.8 and up. [#2423](https://github.com/PyO3/pyo3/pull/2423)
 - Fix FFI definition `PyAsyncMethods` missing member `am_send` on Python 3.10 and up. [#2423](https://github.com/PyO3/pyo3/pull/2423)
@@ -47,6 +47,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Fix FFI definition `PySyntaxErrorObject` missing members `end_lineno` and `end_offset` on Python 3.10 and up. [#2423](https://github.com/PyO3/pyo3/pull/2423)
 - Fix FFI definition `PyHeapTypeObject` missing member `ht_module` on Python 3.9 and up. [#2423](https://github.com/PyO3/pyo3/pull/2423)
 - Fix FFI definition `PyFrameObject` having multiple incorrect members on various Python versions. [#2424](https://github.com/PyO3/pyo3/pull/2424)
+- Fix FFI definition `PyTypeObject` missing deprecated field `tp_print` on Python 3.8. [#2424](https://github.com/PyO3/pyo3/pull/2424)
 
 ## [0.16.5] - 2022-05-15
 

pyo3-ffi/src/cpython/code.rs

@@ -6,7 +6,7 @@ use std::os::raw::{c_char, c_int, c_uchar, c_void};
 // skipped _Py_OPCODE
 // skipped _Py_OPARG
 
-#[cfg(Py_3_8)]
+#[cfg(all(Py_3_8, not(Py_3_11)))]
 opaque_struct!(_PyOpcache);
 
 #[repr(C)]

pyo3-ffi/src/cpython/frameobject.rs

@@ -3,12 +3,12 @@ use crate::object::*;
 use crate::pystate::PyThreadState;
 use std::os::raw::{c_char, c_int};
 
-// skipped _framestate
-
+#[cfg(not(Py_3_11))]
 pub type PyFrameState = c_char;
 
 #[repr(C)]
 #[derive(Copy, Clone)]
+#[cfg(not(Py_3_11))]
 pub struct PyTryBlock {
     pub b_type: c_int,
     pub b_handler: c_int,

pyo3-ffi/src/cpython/object.rs

@@ -276,6 +276,8 @@ pub struct PyTypeObject {
     pub tp_finalize: Option<object::destructor>,
     #[cfg(Py_3_8)]
     pub tp_vectorcall: Option<super::vectorcallfunc>,
+    #[cfg(all(Py_3_8, not(Py_3_9)))]
+    pub tp_print: Option<printfunc>,
     #[cfg(PyPy)]
     pub tp_pypy_flags: std::os::raw::c_long,
     #[cfg(py_sys_config = "COUNT_ALLOCS")]