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Merge #11901: add description of how bitfields are laid out to hexversion docs

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Patch by Sijin Joseph.
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R David Murray 2011-04-25 16:14:26 -04:00
commit dff18b0858
2 changed files with 24 additions and 0 deletions
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23
Doc/library/sys.rst
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@ -540,6 +540,29 @@ always available.
``version_info`` value may be used for a more human-friendly encoding of the ``version_info`` value may be used for a more human-friendly encoding of the
same information. same information.
The ``hexversion`` is a 32-bit number with the following layout
+-------------------------+------------------------------------------------+
| bits (big endian order) | meaning |
+=========================+================================================+
| :const:`1-8` | ``PY_MAJOR_VERSION`` (the ``2`` in |
| | ``2.1.0a3``) |
+-------------------------+------------------------------------------------+
| :const:`9-16` | ``PY_MINOR_VERSION`` (the ``1`` in |
| | ``2.1.0a3``) |
+-------------------------+------------------------------------------------+
| :const:`17-24` | ``PY_MICRO_VERSION`` (the ``0`` in |
| | ``2.1.0a3``) |
+-------------------------+------------------------------------------------+
| :const:`25-28` | ``PY_RELEASE_LEVEL`` (``0xA`` for alpha, |
| | ``0xB`` for beta, ``0xC`` for gamma and |
| | ``0xF`` for final) |
+-------------------------+------------------------------------------------+
| :const:`29-32` | ``PY_RELEASE_SERIAL`` (the ``3`` in |
| | ``2.1.0a3``) |
+-------------------------+------------------------------------------------+
thus ``2.1.0a3`` is hexversion ``0x020100a3``
.. data:: int_info .. data:: int_info

1
Misc/ACKS
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@ -446,6 +446,7 @@ Irmen de Jong
Lucas de Jonge Lucas de Jonge
John Jorgensen John Jorgensen
Jens B. Jorgensen Jens B. Jorgensen
Sijin Joseph
Andreas Jung Andreas Jung
Tattoo Mabonzo K. Tattoo Mabonzo K.
Bob Kahn Bob Kahn