[New-bugs-announce] [issue43284] Wrong windows build in 20H2

[bugale bugale]

New submission from bugale bugale <bugalit at gmail.com>:

Running `platform.platform()` on Windows 10 20H2 results in the build number 19041:

Python 3.9.0 (tags/v3.9.0:9cf6752, Oct  5 2020, 15:34:40) [MSC v.1927 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import platform
>>> platform.platform()
'Windows-10-10.0.19041-SP0'

This is incorrect, the build number is 19042.
Using ctypes like in the answer here produces a correct result:
https://stackoverflow.com/questions/32300004/python-ctypes-getting-0-with-getversionex-function

----------
components: Windows
messages: 387450
nosy: bugale bugale, paul.moore, steve.dower, tim.golden, zach.ware
priority: normal
severity: normal
status: open
title: Wrong windows build in 20H2
type: behavior
versions: Python 3.9

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue43284>
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