Include/patchlevel.h

#ifndef _Py_PATCHLEVEL_H
#define _Py_PATCHLEVEL_H
/* Python version identification scheme.

   When the major or minor version changes, the VERSION variable in
   configure.ac must also be changed.

   There is also (independent) API version information in modsupport.h.

   This header should self-contained; PC/python_ver_rc.h includes it
   without the rest of Python.h.
*/

/* Values for PY_RELEASE_LEVEL */
#define PY_RELEASE_LEVEL_ALPHA  0xA
#define PY_RELEASE_LEVEL_BETA   0xB
#define PY_RELEASE_LEVEL_GAMMA  0xC     /* For release candidates */
#define PY_RELEASE_LEVEL_FINAL  0xF     /* Serial should be 0 here */
                                        /* Higher for patch releases */

/* Version parsed out into numeric values */
/*--start constants--*/
#define PY_MAJOR_VERSION        3
#define PY_MINOR_VERSION        15
#define PY_MICRO_VERSION        0
#define PY_RELEASE_LEVEL        PY_RELEASE_LEVEL_ALPHA
#define PY_RELEASE_SERIAL       7

/* Version as a string */
#define PY_VERSION              "3.15.0a7+"
/*--end constants--*/


#define _Py_PACK_FULL_VERSION(X, Y, Z, LEVEL, SERIAL) ( \
    (((X) & 0xff) << 24) |                              \
    (((Y) & 0xff) << 16) |                              \
    (((Z) & 0xff) << 8) |                               \
    (((LEVEL) & 0xf) << 4) |                            \
    (((SERIAL) & 0xf) << 0))

/* Version as a single 4-byte hex number, e.g. 0x010502B2 == 1.5.2b2.
   Use this for numeric comparisons, e.g. #if PY_VERSION_HEX >= ... */
#define PY_VERSION_HEX _Py_PACK_FULL_VERSION( \
    PY_MAJOR_VERSION,                         \
    PY_MINOR_VERSION,                         \
    PY_MICRO_VERSION,                         \
    PY_RELEASE_LEVEL,                         \
    PY_RELEASE_SERIAL)

// Public Py_PACK_VERSION is declared in pymacro.h; it needs <inttypes.h>.


/* The API and ABI versions are left for backwards compatibility.
   They've not been updated since 2006 and 2010, respectively.
   API/ABI versioning is now tied to the CPython version.
   The *_VERSION and *_STRING symbols should define the same value; as
   number and string literal respectively. Make sure the definitions match.
*/
#define PYTHON_API_VERSION 1013
#define PYTHON_API_STRING "1013"
#define PYTHON_ABI_VERSION 3
#define PYTHON_ABI_STRING "3"


/* Stable ABI for free-threaded builds (introduced in PEP 803)
   is enabled by one of:
     - Py_TARGET_ABI3T, or
     - Py_LIMITED_API and Py_GIL_DISABLED.
   "Output" macros to be used internally:
     - Py_LIMITED_API (defines the subset of API we expose)
     - _Py_OPAQUE_PYOBJECT (additionally hides what's ABI-incompatible between
       free-threaded & GIL)
     (Don't use Py_TARGET_ABI3T directly: it's currently only used to set these
      2 macros. It's also available for users' convenience.)
 */
#if defined(Py_LIMITED_API) && defined(Py_GIL_DISABLED) \
    && !defined(Py_TARGET_ABI3T)
#  define Py_TARGET_ABI3T Py_LIMITED_API
#endif
#if defined(Py_TARGET_ABI3T)
#  define _Py_OPAQUE_PYOBJECT
#  if !defined(Py_LIMITED_API)
#    define Py_LIMITED_API Py_TARGET_ABI3T
#  elif Py_LIMITED_API > Py_TARGET_ABI3T
     // if both are defined, use the *lower* version,
     // i.e. maximum compatibility
#    undef Py_LIMITED_API
#    define Py_LIMITED_API Py_TARGET_ABI3T
#  endif
#endif

#endif //_Py_PATCHLEVEL_H