cpython/Include/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.
*/

/* Values for PY_RELEASE_LEVEL */
#define PY_RELEASE_LEVEL_ALPHA …
#define PY_RELEASE_LEVEL_BETA …
#define PY_RELEASE_LEVEL_GAMMA …
#define PY_RELEASE_LEVEL_FINAL …
                                        /* Higher for patch releases */

/* Version parsed out into numeric values */
/*--start constants--*/
#define PY_MAJOR_VERSION …
#define PY_MINOR_VERSION …
#define PY_MICRO_VERSION …
#define PY_RELEASE_LEVEL …
#define PY_RELEASE_SERIAL …

/* Version as a string */
#define PY_VERSION …
/*--end constants--*/

/* 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 …