# C API and ABI Stability

Unless documented otherwise, Python's C API is covered by the Backwards Compatibility Policy, PEP 387. Most changes to it are source-compatible (typically by only adding new API). Changing existing API or removing API is only done after a deprecation period or to fix serious issues.

CPython's Application Binary Interface (ABI) is forward- and backwards-compatible across a minor release (if these are compiled the same way; see プラットフォームで考慮すべき点 below). So, code compiled for Python 3.10.0 will work on 3.10.8 and vice versa, but will need to be compiled separately for 3.9.x and 3.11.x.

There are two tiers of C API with different stability expectations:

- Unstable API, may change in minor versions without a deprecation period. It is marked by the `PyUnstable` prefix in names.

- Limited API, is compatible across several minor releases. When `Py_LIMITED_API` is defined, only this subset is exposed from `Python.h`.

These are discussed in more detail below.

Names prefixed by an underscore, such as `_Py_InternalState`, are private API that can change without notice even in patch releases. If you need to use this API, consider reaching out to CPython developers to discuss adding public API for your use case.

## Unstable C API

Any API named with the `PyUnstable` prefix exposes CPython implementation details, and may change in every minor release (e.g. from 3.9 to 3.10) without any deprecation warnings. However, it will not change in a bugfix release (e.g. from 3.10.0 to 3.10.1).

It is generally intended for specialized, low-level tools like debuggers.

Projects that use this API are expected to follow CPython development and spend extra effort adjusting to changes.

## 安定 ABI (Stable Appliction Binary Interface)

For simplicity, this document talks about extensions, but the Limited API and Stable ABI work the same way for all uses of the API – for example, embedding Python.

### Limited C API

Python 3.2 introduced the Limited API, a subset of Python's C API. Extensions that only use the Limited API can be compiled once and be loaded on multiple versions of Python. Contents of the Limited API are listed below.

Py_LIMITED_API

  このマクロを `Python.h` をインクルードする前に定義することで、 Limited API のみを使用することを選択し、 Limited API バージョンを選択することができます。

  Define `Py_LIMITED_API` to the value of `PY_VERSION_HEX` corresponding to the lowest Python version your extension supports. The extension will be ABI-compatible with all Python 3 releases from the specified one onward, and can use Limited API introduced up to that version.

  `PY_VERSION_HEX` マクロを直接使うのではなく、将来の Python のバージョンでコンパイルするときの安定性のために、最小のマイナーバージョン(例えば、 Python 3.10なら `0x030A0000` )をハードコードします。

  また、 `Py_LIMITED_API` を `3` に定義することができます。これは `0x03020000` (Python 3.2, Limited API が導入されたバージョン)と同じように動作します。

### Stable ABI

To enable this, Python provides a Stable ABI: a set of symbols that will remain ABI-compatible across Python 3.x versions.

注釈

The Stable ABI prevents ABI issues, like linker errors due to missing symbols or data corruption due to changes in structure layouts or function signatures. However, other changes in Python can change the behavior of extensions. See Python's Backwards Compatibility Policy (PEP 387) for details.

The Stable ABI contains symbols exposed in the Limited API, but also other ones – for example, functions necessary to support older versions of the Limited API.

Windows では、 Stable ABI を使用する拡張機能は、 `python39.dll` のようなバージョン固有のライブラリではなく、 `python3.dll` に対してリンクする必要があります。

いくつかのプラットフォームでは、 Python は `abi3` タグで名付けられた共有ライブラリファイルを探して読み込みます(例: `mymodule.abi3.so`)。このような拡張モジュールが Stable ABI に適合しているかどうかはチェックされません。ユーザー(またはそのパッケージングツール)は、たとえば 3.10+ Limited API でビルドされた拡張モジュールが、それ以下のバージョンの Python にインストールされないことを確認する必要があります。

Stable ABI に含まれるすべての関数は、マクロとしてだけでなく、 Python の共有ライブラリの関数として存在します。そのため、Cプリプロセッサを使用しない言語から使用することができます。

### APIスコープとパフォーマンスの制限

Limited API の目標は、フル C API で可能なすべてのことを実現することですが、おそらく性能上の制約があります。

例えば、 `PyList_GetItem()` は利用可能ですが、その “unsafe” マクロの変種 `PyList_GET_ITEM()` は利用できません。このマクロは、リストオブジェクトのバージョン固有の実装の詳細に依存することができるため、より高速に処理することができます。

`Py_LIMITED_API` を定義しないと、いくつかの C API 関数がインライン化されたり、マクロに置き換わったりします。`Py_LIMITED_API` を定義すると、このインライン化が無効になり、 Python のデータ構造が改善されても安定した動作が可能になりますが、性能が低下する可能性があります。

`Py_LIMITED_API` の定義を省くことで、 Limited API 拡張をバージョン固有の ABI でコンパイルすることが可能です。これにより、その Python のバージョンでパフォーマンスを向上させることができますが、互換性は制限されます。`Py_LIMITED_API` でコンパイルすると、バージョンに依存しない拡張機能が利用できない場合、例えば、次期 Python バージョンのプレリリースに対応した拡張モジュールを配布することができるようになります。

### 制限付きAPIの注意点

Note that compiling with `Py_LIMITED_API` is not a complete guarantee that code conforms to the Limited API or the Stable ABI. `Py_LIMITED_API` only covers definitions, but an API also includes other issues, such as expected semantics.

`Py_LIMITED_API` が防げない問題の1つは、 Python の下位バージョンでは無効な引数を持つ関数を呼び出すことです。例えば、引数に `NULL` を受け取る関数を考えてみましょう。Python 3.9 では `NULL` はデフォルトの挙動を選択しますが、Python 3.8 ではこの引数は直接使用され、 `NULL` の参照外れを起こしクラッシュします。同様の引数は、構造体のフィールドに対しても機能します。

もう一つの問題は、一部の構造体フィールドがLimited APIの一部であるにもかかわらず、 `Py_LIMITED_API` が定義されたときに現在非表示になっていないことです。

これらの理由から、私たちは拡張モジュールがサポートする すべての マイナーな Python バージョンでテストすること、そしてできれば 最も低い バージョンでビルドすることを推奨します。

また、使用するすべての API のドキュメントを確認し、それが明示的に Limited API の一部であるかどうかをチェックすることをお勧めします。`Py_LIMITED_API` が定義されていても、技術的な理由で(あるいはバグとして意図せず)いくつかのプライベート宣言が公開されることがあります。

Python 3.8 で `Py_LIMITED_API` をコンパイルすると、その拡張モジュールは Python 3.12 で動作しますが、必ずしも Python 3.12 で コンパイル できるとは限らないことに注意してください。特に、Limited API の一部は、 Stable ABI が安定している限り、非推奨で削除されるかもしれません。

## プラットフォームで考慮すべき点

ABI stability depends not only on Python, but also on the compiler used, lower-level libraries and compiler options. For the purposes of the Stable ABI, these details define a “platform”. They usually depend on the OS type and processor architecture

特定のプラットフォーム上のすべての Python バージョンが安定版 ABI を破壊しない方法でビルドされていることを保証するのは、 Python の各特定配布者の責任です。これは `python.org` や多くのサードパーティーの配布元からの Windows と macOS のリリースの場合です。

## ABI Checking

Added in version 3.15.0a0 (unreleased).

Python includes a rudimentary check for ABI compatibility.

This check is not comprehensive. It only guards against common cases of incompatible modules being installed for the wrong interpreter. It also does not take platform incompatibilities into account. It can only be done after an extension is successfully loaded.

Despite these limitations, it is recommended that extension modules use this mechanism, so that detectable incompatibilities raise exceptions rather than crash.

Most modules can use this check via the `Py_mod_abi` slot and the `PyABIInfo_VAR` macro, for example like this:

    PyABIInfo_VAR(abi_info);

    static PyModuleDef_Slot mymodule_slots[] = {
       {Py_mod_abi, &abi_info},
       ...
    };

The full API is described below for advanced use cases.

int PyABIInfo_Check(PyABIInfo *info, const char *module_name)
  次に属します: Stable ABI (バージョン 3.15 より).

  Verify that the given info is compatible with the currently running interpreter.

  Return 0 on success. On failure, raise an exception and return -1.

  If the ABI is incompatible, the raised exception will be `ImportError`.

  The module_name argument can be `NULL`, or point to a NUL-terminated UTF-8-encoded string used for error messages.

  Note that if info describes the ABI that the current code uses (as defined by `PyABIInfo_VAR`, for example), using any other Python C API may lead to crashes. In particular, it is not safe to examine the raised exception.

  Added in version 3.15.0a0 (unreleased).

PyABIInfo_VAR(NAME)
  次に属します: Stable ABI (バージョン 3.15 より).

  Define a static `PyABIInfo` variable with the given NAME that describes the ABI that the current code will use. This macro expands to:

      static PyABIInfo NAME = {
          1, 0,
          PyABIInfo_DEFAULT_FLAGS,
          PY_VERSION_HEX,
          PyABIInfo_DEFAULT_ABI_VERSION
      }

  Added in version 3.15.0a0 (unreleased).

type PyABIInfo
  次に属します: Stable ABI (すべてのメンバーを含む) (バージョン 3.15 より).
  uint8_t abiinfo_major_version

    The major version of `PyABIInfo`. Can be set to:

    - `0` to skip all checking, or

    - `1` to specify this version of `PyABIInfo`.

  uint8_t abiinfo_minor_version

    The major version of `PyABIInfo`. Must be set to `0`; larger values are reserved for backwards-compatible future versions of `PyABIInfo`.

  uint16_t flags

    This field is usually set to the following macro:

    PyABIInfo_DEFAULT_FLAGS

      Default flags, based on current values of macros such as `Py_LIMITED_API` and `Py_GIL_DISABLED`.

    Alternately, the field can be set to to the following flags, combined by bitwise OR. Unused bits must be set to zero.

    ABI variant -- one of:

    > PyABIInfo_STABLE

    >   Specifies that the stable ABI is used.

    > PyABIInfo_INTERNAL

    >   Specifies ABI specific to a particular build of CPython. Internal use only.

    Free-threading compatibility -- one of:

    > PyABIInfo_FREETHREADED

    >   Specifies ABI compatible with free-threading builds of CPython. (That is, ones compiled with `--disable-gil`; with `t` in `sys.abiflags`)

    > PyABIInfo_GIL

    >   Specifies ABI compatible with non-free-threading builds of CPython (ones compiled without `--disable-gil`).

  uint32_t build_version

    The version of the Python headers used to build the code, in the format used by `PY_VERSION_HEX`.

    This can be set to `0` to skip any checks related to this field. This option is meant mainly for projects that do not use the CPython headers directly, and do not emulate a specific version of them.

  uint32_t abi_version

    The ABI version.

    For the Stable ABI, this field should be the value of `Py_LIMITED_API` (except if `Py_LIMITED_API` is `3`; use Py_PACK_VERSION(3, 2) in that case).

    Otherwise, it should be set to `PY_VERSION_HEX`.

    It can also be set to `0` to skip any checks related to this field.

    PyABIInfo_DEFAULT_ABI_VERSION

      The value that should be used for this field, based on current values of macros such as `Py_LIMITED_API`, `PY_VERSION_HEX` and `Py_GIL_DISABLED`.

  Added in version 3.15.0a0 (unreleased).

## 限定版APIの内容

Currently, the Limited API includes the following items:

- `PY_VECTORCALL_ARGUMENTS_OFFSET`

- `PyABIInfo`

- `PyABIInfo_Check()`

- `PyABIInfo_VAR`

- `PyAIter_Check()`

- `PyArg_Parse()`

- `PyArg_ParseTuple()`

- `PyArg_ParseTupleAndKeywords()`

- `PyArg_UnpackTuple()`

- `PyArg_VaParse()`

- `PyArg_VaParseTupleAndKeywords()`

- `PyArg_ValidateKeywordArguments()`

- `PyBaseObject_Type`

- `PyBool_FromLong()`

- `PyBool_Type`

- `PyBuffer_FillContiguousStrides()`

- `PyBuffer_FillInfo()`

- `PyBuffer_FromContiguous()`

- `PyBuffer_GetPointer()`

- `PyBuffer_IsContiguous()`

- `PyBuffer_Release()`

- `PyBuffer_SizeFromFormat()`

- `PyBuffer_ToContiguous()`

- `PyByteArrayIter_Type`

- `PyByteArray_AsString()`

- `PyByteArray_Concat()`

- `PyByteArray_FromObject()`

- `PyByteArray_FromStringAndSize()`

- `PyByteArray_Resize()`

- `PyByteArray_Size()`

- `PyByteArray_Type`

- `PyBytesIter_Type`

- `PyBytes_AsString()`

- `PyBytes_AsStringAndSize()`

- `PyBytes_Concat()`

- `PyBytes_ConcatAndDel()`

- `PyBytes_DecodeEscape()`

- `PyBytes_FromFormat()`

- `PyBytes_FromFormatV()`

- `PyBytes_FromObject()`

- `PyBytes_FromString()`

- `PyBytes_FromStringAndSize()`

- `PyBytes_Repr()`

- `PyBytes_Size()`

- `PyBytes_Type`

- `PyCFunction`

- `PyCFunctionFast`

- `PyCFunctionFastWithKeywords`

- `PyCFunctionWithKeywords`

- `PyCFunction_GetFlags()`

- `PyCFunction_GetFunction()`

- `PyCFunction_GetSelf()`

- `PyCFunction_New()`

- `PyCFunction_NewEx()`

- `PyCFunction_Type`

- `PyCMethod_New()`

- `PyCallIter_New()`

- `PyCallIter_Type`

- `PyCallable_Check()`

- `PyCapsule_Destructor`

- `PyCapsule_GetContext()`

- `PyCapsule_GetDestructor()`

- `PyCapsule_GetName()`

- `PyCapsule_GetPointer()`

- `PyCapsule_Import()`

- `PyCapsule_IsValid()`

- `PyCapsule_New()`

- `PyCapsule_SetContext()`

- `PyCapsule_SetDestructor()`

- `PyCapsule_SetName()`

- `PyCapsule_SetPointer()`

- `PyCapsule_Type`

- `PyClassMethodDescr_Type`

- `PyCodec_BackslashReplaceErrors()`

- `PyCodec_Decode()`

- `PyCodec_Decoder()`

- `PyCodec_Encode()`

- `PyCodec_Encoder()`

- `PyCodec_IgnoreErrors()`

- `PyCodec_IncrementalDecoder()`

- `PyCodec_IncrementalEncoder()`

- `PyCodec_KnownEncoding()`

- `PyCodec_LookupError()`

- `PyCodec_NameReplaceErrors()`

- `PyCodec_Register()`

- `PyCodec_RegisterError()`

- `PyCodec_ReplaceErrors()`

- `PyCodec_StreamReader()`

- `PyCodec_StreamWriter()`

- `PyCodec_StrictErrors()`

- `PyCodec_Unregister()`

- `PyCodec_XMLCharRefReplaceErrors()`

- `PyComplex_FromDoubles()`

- `PyComplex_ImagAsDouble()`

- `PyComplex_RealAsDouble()`

- `PyComplex_Type`

- `PyDescr_NewClassMethod()`

- `PyDescr_NewGetSet()`

- `PyDescr_NewMember()`

- `PyDescr_NewMethod()`

- `PyDictItems_Type`

- `PyDictIterItem_Type`

- `PyDictIterKey_Type`

- `PyDictIterValue_Type`

- `PyDictKeys_Type`

- `PyDictProxy_New()`

- `PyDictProxy_Type`

- `PyDictRevIterItem_Type`

- `PyDictRevIterKey_Type`

- `PyDictRevIterValue_Type`

- `PyDictValues_Type`

- `PyDict_Clear()`

- `PyDict_Contains()`

- `PyDict_Copy()`

- `PyDict_DelItem()`

- `PyDict_DelItemString()`

- `PyDict_GetItem()`

- `PyDict_GetItemRef()`

- `PyDict_GetItemString()`

- `PyDict_GetItemStringRef()`

- `PyDict_GetItemWithError()`

- `PyDict_Items()`

- `PyDict_Keys()`

- `PyDict_Merge()`

- `PyDict_MergeFromSeq2()`

- `PyDict_New()`

- `PyDict_Next()`

- `PyDict_SetItem()`

- `PyDict_SetItemString()`

- `PyDict_Size()`

- `PyDict_Type`

- `PyDict_Update()`

- `PyDict_Values()`

- `PyEllipsis_Type`

- `PyEnum_Type`

- `PyErr_BadArgument()`

- `PyErr_BadInternalCall()`

- `PyErr_CheckSignals()`

- `PyErr_Clear()`

- `PyErr_Display()`

- `PyErr_DisplayException()`

- `PyErr_ExceptionMatches()`

- `PyErr_Fetch()`

- `PyErr_Format()`

- `PyErr_FormatV()`

- `PyErr_GetExcInfo()`

- `PyErr_GetHandledException()`

- `PyErr_GetRaisedException()`

- `PyErr_GivenExceptionMatches()`

- `PyErr_NewException()`

- `PyErr_NewExceptionWithDoc()`

- `PyErr_NoMemory()`

- `PyErr_NormalizeException()`

- `PyErr_Occurred()`

- `PyErr_Print()`

- `PyErr_PrintEx()`

- `PyErr_ProgramText()`

- `PyErr_ResourceWarning()`

- `PyErr_Restore()`

- `PyErr_SetExcFromWindowsErr()`

- `PyErr_SetExcFromWindowsErrWithFilename()`

- `PyErr_SetExcFromWindowsErrWithFilenameObject()`

- `PyErr_SetExcFromWindowsErrWithFilenameObjects()`

- `PyErr_SetExcInfo()`

- `PyErr_SetFromErrno()`

- `PyErr_SetFromErrnoWithFilename()`

- `PyErr_SetFromErrnoWithFilenameObject()`

- `PyErr_SetFromErrnoWithFilenameObjects()`

- `PyErr_SetFromWindowsErr()`

- `PyErr_SetFromWindowsErrWithFilename()`

- `PyErr_SetHandledException()`

- `PyErr_SetImportError()`

- `PyErr_SetImportErrorSubclass()`

- `PyErr_SetInterrupt()`

- `PyErr_SetInterruptEx()`

- `PyErr_SetNone()`

- `PyErr_SetObject()`

- `PyErr_SetRaisedException()`

- `PyErr_SetString()`

- `PyErr_SyntaxLocation()`

- `PyErr_SyntaxLocationEx()`

- `PyErr_WarnEx()`

- `PyErr_WarnExplicit()`

- `PyErr_WarnFormat()`

- `PyErr_WriteUnraisable()`

- `PyEval_AcquireThread()`

- `PyEval_EvalCode()`

- `PyEval_EvalCodeEx()`

- `PyEval_EvalFrame()`

- `PyEval_EvalFrameEx()`

- `PyEval_GetBuiltins()`

- `PyEval_GetFrame()`

- `PyEval_GetFrameBuiltins()`

- `PyEval_GetFrameGlobals()`

- `PyEval_GetFrameLocals()`

- `PyEval_GetFuncDesc()`

- `PyEval_GetFuncName()`

- `PyEval_GetGlobals()`

- `PyEval_GetLocals()`

- `PyEval_InitThreads()`

- `PyEval_ReleaseThread()`

- `PyEval_RestoreThread()`

- `PyEval_SaveThread()`

- `PyExc_ArithmeticError`

- `PyExc_AssertionError`

- `PyExc_AttributeError`

- `PyExc_BaseException`

- `PyExc_BaseExceptionGroup`

- `PyExc_BlockingIOError`

- `PyExc_BrokenPipeError`

- `PyExc_BufferError`

- `PyExc_BytesWarning`

- `PyExc_ChildProcessError`

- `PyExc_ConnectionAbortedError`

- `PyExc_ConnectionError`

- `PyExc_ConnectionRefusedError`

- `PyExc_ConnectionResetError`

- `PyExc_DeprecationWarning`

- `PyExc_EOFError`

- `PyExc_EncodingWarning`

- `PyExc_EnvironmentError`

- `PyExc_Exception`

- `PyExc_FileExistsError`

- `PyExc_FileNotFoundError`

- `PyExc_FloatingPointError`

- `PyExc_FutureWarning`

- `PyExc_GeneratorExit`

- `PyExc_IOError`

- `PyExc_ImportError`

- `PyExc_ImportWarning`

- `PyExc_IndentationError`

- `PyExc_IndexError`

- `PyExc_InterruptedError`

- `PyExc_IsADirectoryError`

- `PyExc_KeyError`

- `PyExc_KeyboardInterrupt`

- `PyExc_LookupError`

- `PyExc_MemoryError`

- `PyExc_ModuleNotFoundError`

- `PyExc_NameError`

- `PyExc_NotADirectoryError`

- `PyExc_NotImplementedError`

- `PyExc_OSError`

- `PyExc_OverflowError`

- `PyExc_PendingDeprecationWarning`

- `PyExc_PermissionError`

- `PyExc_ProcessLookupError`

- `PyExc_RecursionError`

- `PyExc_ReferenceError`

- `PyExc_ResourceWarning`

- `PyExc_RuntimeError`

- `PyExc_RuntimeWarning`

- `PyExc_StopAsyncIteration`

- `PyExc_StopIteration`

- `PyExc_SyntaxError`

- `PyExc_SyntaxWarning`

- `PyExc_SystemError`

- `PyExc_SystemExit`

- `PyExc_TabError`

- `PyExc_TimeoutError`

- `PyExc_TypeError`

- `PyExc_UnboundLocalError`

- `PyExc_UnicodeDecodeError`

- `PyExc_UnicodeEncodeError`

- `PyExc_UnicodeError`

- `PyExc_UnicodeTranslateError`

- `PyExc_UnicodeWarning`

- `PyExc_UserWarning`

- `PyExc_ValueError`

- `PyExc_Warning`

- `PyExc_WindowsError`

- `PyExc_ZeroDivisionError`

- `PyExceptionClass_Name()`

- `PyException_GetArgs()`

- `PyException_GetCause()`

- `PyException_GetContext()`

- `PyException_GetTraceback()`

- `PyException_SetArgs()`

- `PyException_SetCause()`

- `PyException_SetContext()`

- `PyException_SetTraceback()`

- `PyFile_FromFd()`

- `PyFile_GetLine()`

- `PyFile_WriteObject()`

- `PyFile_WriteString()`

- `PyFilter_Type`

- `PyFloat_AsDouble()`

- `PyFloat_FromDouble()`

- `PyFloat_FromString()`

- `PyFloat_GetInfo()`

- `PyFloat_GetMax()`

- `PyFloat_GetMin()`

- `PyFloat_Type`

- `PyFrameObject`

- `PyFrame_GetCode()`

- `PyFrame_GetLineNumber()`

- `PyFrozenSet_New()`

- `PyFrozenSet_Type`

- `PyGC_Collect()`

- `PyGC_Disable()`

- `PyGC_Enable()`

- `PyGC_IsEnabled()`

- `PyGILState_Ensure()`

- `PyGILState_GetThisThreadState()`

- `PyGILState_Release()`

- `PyGILState_STATE`

- `PyGetSetDef`

- `PyGetSetDescr_Type`

- `PyImport_AddModule()`

- `PyImport_AddModuleObject()`

- `PyImport_AddModuleRef()`

- `PyImport_AppendInittab()`

- `PyImport_ExecCodeModule()`

- `PyImport_ExecCodeModuleEx()`

- `PyImport_ExecCodeModuleObject()`

- `PyImport_ExecCodeModuleWithPathnames()`

- `PyImport_GetImporter()`

- `PyImport_GetMagicNumber()`

- `PyImport_GetMagicTag()`

- `PyImport_GetModule()`

- `PyImport_GetModuleDict()`

- `PyImport_Import()`

- `PyImport_ImportFrozenModule()`

- `PyImport_ImportFrozenModuleObject()`

- `PyImport_ImportModule()`

- `PyImport_ImportModuleLevel()`

- `PyImport_ImportModuleLevelObject()`

- `PyImport_ReloadModule()`

- `PyIndex_Check()`

- `PyInterpreterState`

- `PyInterpreterState_Clear()`

- `PyInterpreterState_Delete()`

- `PyInterpreterState_Get()`

- `PyInterpreterState_GetDict()`

- `PyInterpreterState_GetID()`

- `PyInterpreterState_New()`

- `PyIter_Check()`

- `PyIter_Next()`

- `PyIter_NextItem()`

- `PyIter_Send()`

- `PyListIter_Type`

- `PyListRevIter_Type`

- `PyList_Append()`

- `PyList_AsTuple()`

- `PyList_GetItem()`

- `PyList_GetItemRef()`

- `PyList_GetSlice()`

- `PyList_Insert()`

- `PyList_New()`

- `PyList_Reverse()`

- `PyList_SetItem()`

- `PyList_SetSlice()`

- `PyList_Size()`

- `PyList_Sort()`

- `PyList_Type`

- `PyLongObject`

- `PyLongRangeIter_Type`

- `PyLong_AsDouble()`

- `PyLong_AsInt()`

- `PyLong_AsInt32()`

- `PyLong_AsInt64()`

- `PyLong_AsLong()`

- `PyLong_AsLongAndOverflow()`

- `PyLong_AsLongLong()`

- `PyLong_AsLongLongAndOverflow()`

- `PyLong_AsNativeBytes()`

- `PyLong_AsSize_t()`

- `PyLong_AsSsize_t()`

- `PyLong_AsUInt32()`

- `PyLong_AsUInt64()`

- `PyLong_AsUnsignedLong()`

- `PyLong_AsUnsignedLongLong()`

- `PyLong_AsUnsignedLongLongMask()`

- `PyLong_AsUnsignedLongMask()`

- `PyLong_AsVoidPtr()`

- `PyLong_FromDouble()`

- `PyLong_FromInt32()`

- `PyLong_FromInt64()`

- `PyLong_FromLong()`

- `PyLong_FromLongLong()`

- `PyLong_FromNativeBytes()`

- `PyLong_FromSize_t()`

- `PyLong_FromSsize_t()`

- `PyLong_FromString()`

- `PyLong_FromUInt32()`

- `PyLong_FromUInt64()`

- `PyLong_FromUnsignedLong()`

- `PyLong_FromUnsignedLongLong()`

- `PyLong_FromUnsignedNativeBytes()`

- `PyLong_FromVoidPtr()`

- `PyLong_GetInfo()`

- `PyLong_Type`

- `PyMap_Type`

- `PyMapping_Check()`

- `PyMapping_GetItemString()`

- `PyMapping_GetOptionalItem()`

- `PyMapping_GetOptionalItemString()`

- `PyMapping_HasKey()`

- `PyMapping_HasKeyString()`

- `PyMapping_HasKeyStringWithError()`

- `PyMapping_HasKeyWithError()`

- `PyMapping_Items()`

- `PyMapping_Keys()`

- `PyMapping_Length()`

- `PyMapping_SetItemString()`

- `PyMapping_Size()`

- `PyMapping_Values()`

- `PyMem_Calloc()`

- `PyMem_Free()`

- `PyMem_Malloc()`

- `PyMem_RawCalloc()`

- `PyMem_RawFree()`

- `PyMem_RawMalloc()`

- `PyMem_RawRealloc()`

- `PyMem_Realloc()`

- `PyMemberDef`

- `PyMemberDescr_Type`

- `PyMember_GetOne()`

- `PyMember_SetOne()`

- `PyMemoryView_FromBuffer()`

- `PyMemoryView_FromMemory()`

- `PyMemoryView_FromObject()`

- `PyMemoryView_GetContiguous()`

- `PyMemoryView_Type`

- `PyMethodDef`

- `PyMethodDescr_Type`

- `PyModuleDef`

- `PyModuleDef_Base`

- `PyModuleDef_Init()`

- `PyModuleDef_Type`

- `PyModule_Add()`

- `PyModule_AddFunctions()`

- `PyModule_AddIntConstant()`

- `PyModule_AddObject()`

- `PyModule_AddObjectRef()`

- `PyModule_AddStringConstant()`

- `PyModule_AddType()`

- `PyModule_Create2()`

- `PyModule_ExecDef()`

- `PyModule_FromDefAndSpec2()`

- `PyModule_GetDef()`

- `PyModule_GetDict()`

- `PyModule_GetFilename()`

- `PyModule_GetFilenameObject()`

- `PyModule_GetName()`

- `PyModule_GetNameObject()`

- `PyModule_GetState()`

- `PyModule_New()`

- `PyModule_NewObject()`

- `PyModule_SetDocString()`

- `PyModule_Type`

- `PyNumber_Absolute()`

- `PyNumber_Add()`

- `PyNumber_And()`

- `PyNumber_AsSsize_t()`

- `PyNumber_Check()`

- `PyNumber_Divmod()`

- `PyNumber_Float()`

- `PyNumber_FloorDivide()`

- `PyNumber_InPlaceAdd()`

- `PyNumber_InPlaceAnd()`

- `PyNumber_InPlaceFloorDivide()`

- `PyNumber_InPlaceLshift()`

- `PyNumber_InPlaceMatrixMultiply()`

- `PyNumber_InPlaceMultiply()`

- `PyNumber_InPlaceOr()`

- `PyNumber_InPlacePower()`

- `PyNumber_InPlaceRemainder()`

- `PyNumber_InPlaceRshift()`

- `PyNumber_InPlaceSubtract()`

- `PyNumber_InPlaceTrueDivide()`

- `PyNumber_InPlaceXor()`

- `PyNumber_Index()`

- `PyNumber_Invert()`

- `PyNumber_Long()`

- `PyNumber_Lshift()`

- `PyNumber_MatrixMultiply()`

- `PyNumber_Multiply()`

- `PyNumber_Negative()`

- `PyNumber_Or()`

- `PyNumber_Positive()`

- `PyNumber_Power()`

- `PyNumber_Remainder()`

- `PyNumber_Rshift()`

- `PyNumber_Subtract()`

- `PyNumber_ToBase()`

- `PyNumber_TrueDivide()`

- `PyNumber_Xor()`

- `PyOS_AfterFork()`

- `PyOS_AfterFork_Child()`

- `PyOS_AfterFork_Parent()`

- `PyOS_BeforeFork()`

- `PyOS_CheckStack()`

- `PyOS_FSPath()`

- `PyOS_InputHook`

- `PyOS_InterruptOccurred()`

- `PyOS_double_to_string()`

- `PyOS_getsig()`

- `PyOS_mystricmp()`

- `PyOS_mystrnicmp()`

- `PyOS_setsig()`

- `PyOS_sighandler_t`

- `PyOS_snprintf()`

- `PyOS_string_to_double()`

- `PyOS_strtol()`

- `PyOS_strtoul()`

- `PyOS_vsnprintf()`

- `PyObject`

- `PyObject.ob_refcnt`

- `PyObject.ob_type`

- `PyObject_ASCII()`

- `PyObject_AsFileDescriptor()`

- `PyObject_Bytes()`

- `PyObject_Call()`

- `PyObject_CallFunction()`

- `PyObject_CallFunctionObjArgs()`

- `PyObject_CallMethod()`

- `PyObject_CallMethodObjArgs()`

- `PyObject_CallNoArgs()`

- `PyObject_CallObject()`

- `PyObject_Calloc()`

- `PyObject_CheckBuffer()`

- `PyObject_ClearWeakRefs()`

- `PyObject_CopyData()`

- `PyObject_DelAttr()`

- `PyObject_DelAttrString()`

- `PyObject_DelItem()`

- `PyObject_DelItemString()`

- `PyObject_Dir()`

- `PyObject_Format()`

- `PyObject_Free()`

- `PyObject_GC_Del()`

- `PyObject_GC_IsFinalized()`

- `PyObject_GC_IsTracked()`

- `PyObject_GC_Track()`

- `PyObject_GC_UnTrack()`

- `PyObject_GenericGetAttr()`

- `PyObject_GenericGetDict()`

- `PyObject_GenericSetAttr()`

- `PyObject_GenericSetDict()`

- `PyObject_GetAIter()`

- `PyObject_GetAttr()`

- `PyObject_GetAttrString()`

- `PyObject_GetBuffer()`

- `PyObject_GetItem()`

- `PyObject_GetIter()`

- `PyObject_GetOptionalAttr()`

- `PyObject_GetOptionalAttrString()`

- `PyObject_GetTypeData()`

- `PyObject_HasAttr()`

- `PyObject_HasAttrString()`

- `PyObject_HasAttrStringWithError()`

- `PyObject_HasAttrWithError()`

- `PyObject_Hash()`

- `PyObject_HashNotImplemented()`

- `PyObject_Init()`

- `PyObject_InitVar()`

- `PyObject_IsInstance()`

- `PyObject_IsSubclass()`

- `PyObject_IsTrue()`

- `PyObject_Length()`

- `PyObject_Malloc()`

- `PyObject_Not()`

- `PyObject_Realloc()`

- `PyObject_Repr()`

- `PyObject_RichCompare()`

- `PyObject_RichCompareBool()`

- `PyObject_SelfIter()`

- `PyObject_SetAttr()`

- `PyObject_SetAttrString()`

- `PyObject_SetItem()`

- `PyObject_Size()`

- `PyObject_Str()`

- `PyObject_Type()`

- `PyObject_Vectorcall()`

- `PyObject_VectorcallMethod()`

- `PyProperty_Type`

- `PyRangeIter_Type`

- `PyRange_Type`

- `PyReversed_Type`

- `PySeqIter_New()`

- `PySeqIter_Type`

- `PySequence_Check()`

- `PySequence_Concat()`

- `PySequence_Contains()`

- `PySequence_Count()`

- `PySequence_DelItem()`

- `PySequence_DelSlice()`

- `PySequence_Fast()`

- `PySequence_GetItem()`

- `PySequence_GetSlice()`

- `PySequence_In()`

- `PySequence_InPlaceConcat()`

- `PySequence_InPlaceRepeat()`

- `PySequence_Index()`

- `PySequence_Length()`

- `PySequence_List()`

- `PySequence_Repeat()`

- `PySequence_SetItem()`

- `PySequence_SetSlice()`

- `PySequence_Size()`

- `PySequence_Tuple()`

- `PySetIter_Type`

- `PySet_Add()`

- `PySet_Clear()`

- `PySet_Contains()`

- `PySet_Discard()`

- `PySet_New()`

- `PySet_Pop()`

- `PySet_Size()`

- `PySet_Type`

- `PySlice_AdjustIndices()`

- `PySlice_GetIndices()`

- `PySlice_GetIndicesEx()`

- `PySlice_New()`

- `PySlice_Type`

- `PySlice_Unpack()`

- `PyState_AddModule()`

- `PyState_FindModule()`

- `PyState_RemoveModule()`

- `PyStructSequence_Desc`

- `PyStructSequence_Field`

- `PyStructSequence_GetItem()`

- `PyStructSequence_New()`

- `PyStructSequence_NewType()`

- `PyStructSequence_SetItem()`

- `PyStructSequence_UnnamedField`

- `PySuper_Type`

- `PySys_Audit()`

- `PySys_AuditTuple()`

- `PySys_FormatStderr()`

- `PySys_FormatStdout()`

- `PySys_GetAttr()`

- `PySys_GetAttrString()`

- `PySys_GetObject()`

- `PySys_GetOptionalAttr()`

- `PySys_GetOptionalAttrString()`

- `PySys_GetXOptions()`

- `PySys_ResetWarnOptions()`

- `PySys_SetArgv()`

- `PySys_SetArgvEx()`

- `PySys_SetObject()`

- `PySys_WriteStderr()`

- `PySys_WriteStdout()`

- `PyThreadState`

- `PyThreadState_Clear()`

- `PyThreadState_Delete()`

- `PyThreadState_Get()`

- `PyThreadState_GetDict()`

- `PyThreadState_GetFrame()`

- `PyThreadState_GetID()`

- `PyThreadState_GetInterpreter()`

- `PyThreadState_New()`

- `PyThreadState_SetAsyncExc()`

- `PyThreadState_Swap()`

- `PyThread_GetInfo()`

- `PyThread_ReInitTLS()`

- `PyThread_acquire_lock()`

- `PyThread_acquire_lock_timed()`

- `PyThread_allocate_lock()`

- `PyThread_create_key()`

- `PyThread_delete_key()`

- `PyThread_delete_key_value()`

- `PyThread_exit_thread()`

- `PyThread_free_lock()`

- `PyThread_get_key_value()`

- `PyThread_get_stacksize()`

- `PyThread_get_thread_ident()`

- `PyThread_get_thread_native_id()`

- `PyThread_init_thread()`

- `PyThread_release_lock()`

- `PyThread_set_key_value()`

- `PyThread_set_stacksize()`

- `PyThread_start_new_thread()`

- `PyThread_tss_alloc()`

- `PyThread_tss_create()`

- `PyThread_tss_delete()`

- `PyThread_tss_free()`

- `PyThread_tss_get()`

- `PyThread_tss_is_created()`

- `PyThread_tss_set()`

- `PyTraceBack_Here()`

- `PyTraceBack_Print()`

- `PyTraceBack_Type`

- `PyTupleIter_Type`

- `PyTuple_GetItem()`

- `PyTuple_GetSlice()`

- `PyTuple_New()`

- `PyTuple_Pack()`

- `PyTuple_SetItem()`

- `PyTuple_Size()`

- `PyTuple_Type`

- `PyTypeObject`

- `PyType_ClearCache()`

- `PyType_Freeze()`

- `PyType_FromMetaclass()`

- `PyType_FromModuleAndSpec()`

- `PyType_FromSpec()`

- `PyType_FromSpecWithBases()`

- `PyType_GenericAlloc()`

- `PyType_GenericNew()`

- `PyType_GetBaseByToken()`

- `PyType_GetFlags()`

- `PyType_GetFullyQualifiedName()`

- `PyType_GetModule()`

- `PyType_GetModuleByDef()`

- `PyType_GetModuleName()`

- `PyType_GetModuleState()`

- `PyType_GetName()`

- `PyType_GetQualName()`

- `PyType_GetSlot()`

- `PyType_GetTypeDataSize()`

- `PyType_IsSubtype()`

- `PyType_Modified()`

- `PyType_Ready()`

- `PyType_Slot`

- `PyType_Spec`

- `PyType_Type`

- `PyUnicodeDecodeError_Create()`

- `PyUnicodeDecodeError_GetEncoding()`

- `PyUnicodeDecodeError_GetEnd()`

- `PyUnicodeDecodeError_GetObject()`

- `PyUnicodeDecodeError_GetReason()`

- `PyUnicodeDecodeError_GetStart()`

- `PyUnicodeDecodeError_SetEnd()`

- `PyUnicodeDecodeError_SetReason()`

- `PyUnicodeDecodeError_SetStart()`

- `PyUnicodeEncodeError_GetEncoding()`

- `PyUnicodeEncodeError_GetEnd()`

- `PyUnicodeEncodeError_GetObject()`

- `PyUnicodeEncodeError_GetReason()`

- `PyUnicodeEncodeError_GetStart()`

- `PyUnicodeEncodeError_SetEnd()`

- `PyUnicodeEncodeError_SetReason()`

- `PyUnicodeEncodeError_SetStart()`

- `PyUnicodeIter_Type`

- `PyUnicodeTranslateError_GetEnd()`

- `PyUnicodeTranslateError_GetObject()`

- `PyUnicodeTranslateError_GetReason()`

- `PyUnicodeTranslateError_GetStart()`

- `PyUnicodeTranslateError_SetEnd()`

- `PyUnicodeTranslateError_SetReason()`

- `PyUnicodeTranslateError_SetStart()`

- `PyUnicode_Append()`

- `PyUnicode_AppendAndDel()`

- `PyUnicode_AsASCIIString()`

- `PyUnicode_AsCharmapString()`

- `PyUnicode_AsEncodedString()`

- `PyUnicode_AsLatin1String()`

- `PyUnicode_AsMBCSString()`

- `PyUnicode_AsRawUnicodeEscapeString()`

- `PyUnicode_AsUCS4()`

- `PyUnicode_AsUCS4Copy()`

- `PyUnicode_AsUTF16String()`

- `PyUnicode_AsUTF32String()`

- `PyUnicode_AsUTF8AndSize()`

- `PyUnicode_AsUTF8String()`

- `PyUnicode_AsUnicodeEscapeString()`

- `PyUnicode_AsWideChar()`

- `PyUnicode_AsWideCharString()`

- `PyUnicode_BuildEncodingMap()`

- `PyUnicode_Compare()`

- `PyUnicode_CompareWithASCIIString()`

- `PyUnicode_Concat()`

- `PyUnicode_Contains()`

- `PyUnicode_Count()`

- `PyUnicode_Decode()`

- `PyUnicode_DecodeASCII()`

- `PyUnicode_DecodeCharmap()`

- `PyUnicode_DecodeCodePageStateful()`

- `PyUnicode_DecodeFSDefault()`

- `PyUnicode_DecodeFSDefaultAndSize()`

- `PyUnicode_DecodeLatin1()`

- `PyUnicode_DecodeLocale()`

- `PyUnicode_DecodeLocaleAndSize()`

- `PyUnicode_DecodeMBCS()`

- `PyUnicode_DecodeMBCSStateful()`

- `PyUnicode_DecodeRawUnicodeEscape()`

- `PyUnicode_DecodeUTF16()`

- `PyUnicode_DecodeUTF16Stateful()`

- `PyUnicode_DecodeUTF32()`

- `PyUnicode_DecodeUTF32Stateful()`

- `PyUnicode_DecodeUTF7()`

- `PyUnicode_DecodeUTF7Stateful()`

- `PyUnicode_DecodeUTF8()`

- `PyUnicode_DecodeUTF8Stateful()`

- `PyUnicode_DecodeUnicodeEscape()`

- `PyUnicode_EncodeCodePage()`

- `PyUnicode_EncodeFSDefault()`

- `PyUnicode_EncodeLocale()`

- `PyUnicode_Equal()`

- `PyUnicode_EqualToUTF8()`

- `PyUnicode_EqualToUTF8AndSize()`

- `PyUnicode_FSConverter()`

- `PyUnicode_FSDecoder()`

- `PyUnicode_Find()`

- `PyUnicode_FindChar()`

- `PyUnicode_Format()`

- `PyUnicode_FromEncodedObject()`

- `PyUnicode_FromFormat()`

- `PyUnicode_FromFormatV()`

- `PyUnicode_FromObject()`

- `PyUnicode_FromOrdinal()`

- `PyUnicode_FromString()`

- `PyUnicode_FromStringAndSize()`

- `PyUnicode_FromWideChar()`

- `PyUnicode_GetDefaultEncoding()`

- `PyUnicode_GetLength()`

- `PyUnicode_InternFromString()`

- `PyUnicode_InternInPlace()`

- `PyUnicode_IsIdentifier()`

- `PyUnicode_Join()`

- `PyUnicode_Partition()`

- `PyUnicode_RPartition()`

- `PyUnicode_RSplit()`

- `PyUnicode_ReadChar()`

- `PyUnicode_Replace()`

- `PyUnicode_Resize()`

- `PyUnicode_RichCompare()`

- `PyUnicode_Split()`

- `PyUnicode_Splitlines()`

- `PyUnicode_Substring()`

- `PyUnicode_Tailmatch()`

- `PyUnicode_Translate()`

- `PyUnicode_Type`

- `PyUnicode_WriteChar()`

- `PyVarObject`

- `PyVarObject.ob_base`

- `PyVarObject.ob_size`

- `PyVectorcall_Call()`

- `PyVectorcall_NARGS()`

- `PyWeakReference`

- `PyWeakref_GetObject()`

- `PyWeakref_GetRef()`

- `PyWeakref_NewProxy()`

- `PyWeakref_NewRef()`

- `PyWrapperDescr_Type`

- `PyWrapper_New()`

- `PyZip_Type`

- `Py_AddPendingCall()`

- `Py_AtExit()`

- `Py_BEGIN_ALLOW_THREADS`

- `Py_BLOCK_THREADS`

- `Py_BuildValue()`

- `Py_BytesMain()`

- `Py_CompileString()`

- `Py_DecRef()`

- `Py_DecodeLocale()`

- `Py_END_ALLOW_THREADS`

- `Py_EncodeLocale()`

- `Py_EndInterpreter()`

- `Py_EnterRecursiveCall()`

- `Py_Exit()`

- `Py_FatalError()`

- `Py_FileSystemDefaultEncodeErrors`

- `Py_FileSystemDefaultEncoding`

- `Py_Finalize()`

- `Py_FinalizeEx()`

- `Py_GenericAlias()`

- `Py_GenericAliasType`

- `Py_GetBuildInfo()`

- `Py_GetCompiler()`

- `Py_GetConstant()`

- `Py_GetConstantBorrowed()`

- `Py_GetCopyright()`

- `Py_GetPlatform()`

- `Py_GetRecursionLimit()`

- `Py_GetVersion()`

- `Py_HasFileSystemDefaultEncoding`

- `Py_IncRef()`

- `Py_Initialize()`

- `Py_InitializeEx()`

- `Py_Is()`

- `Py_IsFalse()`

- `Py_IsFinalizing()`

- `Py_IsInitialized()`

- `Py_IsNone()`

- `Py_IsTrue()`

- `Py_LeaveRecursiveCall()`

- `Py_Main()`

- `Py_MakePendingCalls()`

- `Py_NewInterpreter()`

- `Py_NewRef()`

- `Py_PACK_FULL_VERSION()`

- `Py_PACK_VERSION()`

- `Py_REFCNT()`

- `Py_ReprEnter()`

- `Py_ReprLeave()`

- `Py_SetProgramName()`

- `Py_SetPythonHome()`

- `Py_SetRecursionLimit()`

- `Py_TYPE()`

- `Py_UCS4`

- `Py_UNBLOCK_THREADS`

- `Py_UTF8Mode`

- `Py_VaBuildValue()`

- `Py_Version`

- `Py_XNewRef()`

- `Py_buffer`

- `Py_intptr_t`

- `Py_ssize_t`

- `Py_uintptr_t`

- `allocfunc`

- `binaryfunc`

- `descrgetfunc`

- `descrsetfunc`

- `destructor`

- `getattrfunc`

- `getattrofunc`

- `getbufferproc`

- `getiterfunc`

- `getter`

- `hashfunc`

- `initproc`

- `inquiry`

- `iternextfunc`

- `lenfunc`

- `newfunc`

- `objobjargproc`

- `objobjproc`

- `releasebufferproc`

- `reprfunc`

- `richcmpfunc`

- `setattrfunc`

- `setattrofunc`

- `setter`

- `ssizeargfunc`

- `ssizeobjargproc`

- `ssizessizeargfunc`

- `ssizessizeobjargproc`

- `symtable`

- `ternaryfunc`

- `traverseproc`

- `unaryfunc`

- `vectorcallfunc`

- `visitproc`