Marc-Andre Lemburg <m...@egenix.com> added the comment:

STINNER Victor wrote:
> 
> STINNER Victor <victor.stin...@haypocalc.com> added the comment:
> 
>> I'm not sure I understand why platform.release() isn't sufficient
>> for this purpose. Note that some systems return alphanumeric
>> values for platform.release(), e.g. for Windows you get
>> 'NT' or 'XP'.
> 
> It's not easy to get 2 (int) from '2.6.38-8-generic' (str). For Windows, 
> there *is* a major version:
> 
>  * Windows 3.1 : 3
>  * Windows 95/98, NT 4 : 4
>  * Windows XP, 2003 : 5
>  * Vista, Seven : 6
>
> The major version is maybe less revelant for Windows.

For Windows and Mac OS X, the minor version is relevant as well:

Windows 7 has the version number 6.1. For Mac OS X, there are major
changes happening for minor releases, e.g. see the architecture changes
between 10.4, 10.5 and 10.6.

> Anyway...
> 
>> platform.major() will be needed if we remove the major
>> version for all platforms from sys.platform (issue #12795).
> 
> I just closed the issue #12795, and so I don't think that this issue is still 
> needed and so I close it. Reopen it if you still see an use case.

----------
title: platform: add a major function to get the system major version -> 
platform: add a major function to get the system major version

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<http://bugs.python.org/issue12794>
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